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A domestic materials research team recently achieved an important breakthrough in the field of green magnesium alloy recycling—successfully developing a new efficient recycling technology for magnesium alloy scrap that can increase the recovery rate to over 95%, with recycled magnesium producing about 70% less carbon emissions compared to primary magnesium. The technology has passed pilot-scale validation and is expected to establish the first 10,000-ton industrial demonstration line within the year. Magnesium alloy processing generates large amounts of scrap, such as chips and offcuts. Traditional recycling methods are inefficient, energy-intensive, and prone to quality degradation. The research team innovatively adopted a "low-temperature melting + gradient purification" process route, effectively removing impurities while preserving the original properties of the magnesium alloy. Testing shows that the recycled magnesium alloy exhibits mechanical properties comparable to primary magnesium and can be widely used in structural component manufacturing for automotive, 3C, and other fields. According to estimates, adopting this technology can reduce carbon dioxide emissions by approximately 20 tons and save about 80% of energy consumption for each ton of magnesium alloy scrap recycled. Against the current "dual carbon" goal background, green recycling of magnesium alloys not only brings significant economic benefits but is also a key measure to enhance the sustainable development capacity of the industry. The research team stated that next step they will promote the integrated application of this technology with existing magnesium alloy processing production lines, establishing a closed-loop industrial chain of "raw materials - processing - recycling -rebirth"At the same time, the team will conduct lifecycle assessment research on magnesium alloys, providing scientific data support for the green attributes of magnesium alloys.

In the spring 2026 consumer electronics new product launch season, magnesium alloy has become a "star material" attracting much attention. To date, over 8 mainstream laptop brands have launched thin-and-light products featuring magnesium alloy casings, covering all price segments from 4,000 yuan entry-level to over 10,000 yuan flagship models. Compared to traditional aluminum alloy or plastic casings, magnesium alloy casings offer significant weight reduction, being approximately 30%-40% lighter under equivalent structural strength. The latest flagship thin-and-light laptop from a well-known brand weighs only 899 grams, setting a new record for products of the same size. The product features an integrated die-cast magnesium alloy casing, ensuring thinness and lightness while increasing casing rigidity by 25% compared to the previous generation. The brand's product manager stated that magnesium alloy materials not only meet consumers' ultimate pursuit of portability but also provide excellent electromagnetic shielding performance, ensuring high-frequency data transmission. As consumer electronics enter a dual competition phase of "lightweighting + high performance," magnesium alloy applications are rapidly penetrating from high-end flagships to mid-range mainstream products. Supply chain sources indicate that multiple ODM (Original Design Manufacturer) factories have expanded magnesium alloy die-casting production lines, with projections that magnesium alloy penetration in laptop structural components will exceed 20% in 2026. In addition to laptops, magnesium alloy applications in 3C products such as tablets, smart wearables, and drones are also showing rapid growth.

A well-known European railway transport group recently announced the official launch of a batch application plan for magnesium alloy train components, equipping over 200 new high-speed trains with magnesium alloy seat frames, luggage racks, and interior trim parts over the next three years. This represents the largest-scale application practice of magnesium alloy materials in the European rail transit field, marking the successful expansion of magnesium alloys from automotive lightweighting to rail transit. According to reports, these magnesium alloy components were jointly developed by multiple material companies and component suppliers, utilizing new corrosion-resistant magnesium alloy materials and advanced surface treatment technologies that meet the 30-year service life requirements of railway vehicles. Compared to traditional steel components, magnesium alloy components achieve weight reduction of 50%-60%, reducing weight by approximately 8 tons per train. Calculated over the train's 30-year lifecycle, the energy-saving benefits from weight reduction can offset the incremental material costs. The project leader stated that rail transit is a highly promising application market for magnesium alloys. Train weight reduction can significantly reduce traction energy consumption, decrease track wear, and improve acceleration performance. Currently, multiple European countries are advancing the modernization and expansion of their railway networks, with demand for lightweight materials continuing to grow. Based on the success of the initial applications, the group plans to推广 magnesium alloys to more train components, including door and window frames and air conditioning ducts.

Supported by the National Key R&D Program, China's magnesium-based solid-state hydrogen storage technology recently achieved a major engineering breakthrough—the first megawatt-scale magnesium-based solid-state hydrogen storage demonstration device successfully passed full-load operation testing in the Yangtze River Delta region. The device uses magnesium alloy materials as the hydrogen storage medium, achieving a hydrogen storage density of 6.5 wt% (weight percentage), far exceeding high-pressure gaseous hydrogen storage and cryogenic liquid hydrogen storage, and can be safely transported under normal temperature and pressure. Hydrogen storage and transportation have always been bottleneck links restricting the development of the hydrogen energy industry. Traditional high-pressure gaseous hydrogen storage requires expensive carbon fiber tanks and high-pressure compression equipment, while liquid hydrogen storage faces extremely high energy consumption and evaporation losses. Magnesium-based solid-state hydrogen storage technology utilizes the reversible chemical reaction between magnesium and hydrogen to achieve high-density safe storage of hydrogen, featuring inherent safety, high hydrogen storage density, and integrated purification. According to the project leader, the demonstration device operates stably with good hydrogen absorption/desorption cycling performance, and has currently accumulated over 1000 hours of operation. Calculations show that adopting magnesium-based solid-state hydrogen storage technology can reduce comprehensive hydrogen storage and transportation costs by approximately 30%. Next, the research team will continue optimizing the hydrogen storage performance and cycle life of magnesium alloy materials, promoting large-scale application of this technology in scenarios such as hydrogen refueling stations, distributed energy, and hydrogen power generation.

An international research team composed of scientific institutions from Germany, Switzerland, and China recently achieved significant progress in the field of biomedical magnesium alloys—successfully developing a novel biodegradable magnesium alloy cardiovascular stent. Animal experiment results show that the stent completely degrades within 6 months after implantation, with a degradation rate highly matching the vascular healing process, and no adverse reactions such as inflammation or thrombosis were observed. Traditional permanent metal stents remain in the body long after vascular healing, potentially causing complications such as late thrombosis and in-stent restenosis. The emergence of biodegradable magnesium alloy stents provides a new solution to this problem. By optimizing magnesium alloy composition and microstructure, the research team precisely controlled the stent's degradation rate, allowing it to gradually degrade while supporting the vascular wall, ultimately being safely absorbed by the body. It is reported that the stent has completed all preclinical animal experiments and is scheduled to enter human clinical trials by the end of 2026. If progress goes smoothly, it could achieve commercial application within 3-5 years, offering safer and more effective treatment options for coronary heart disease patients. The research team stated that next step they will continue optimizing the mechanical properties and degradation behavior of magnesium alloy stents, exploring applications in more fields such as peripheral vessels and pediatric vasculature.

Recently, China's commercial aerospace sector achieved a significant breakthrough—a new generation of high-performance magnesium alloy material developed by an aerospace technology team was successfully applied in the batch manufacturing of structural components for low-orbit communication satellites. While maintaining lightweight advantages, this magnesium alloy significantly improves resistance to space radiation and thermal cycling, reducing satellite structural weight by approximately 25% and increasing payload capacity by over 15%. It is reported that this magnesium alloy material utilizes innovative rare earth element micro-alloying technology, solving the problems of micro-deformation and performance degradation that traditional magnesium alloys face in space environments. Satellite manufacturers indicate that the introduction of magnesium alloy materials not only reduces launch costs but also provides greater design flexibility for satellite platform miniaturization and lightweighting. Industry experts point out that with the acceleration of low-orbit satellite internet constellation construction, the application of high-performance magnesium alloys in the aerospace field is expected to see explosive growth. Currently, multiple aerospace manufacturers have initiated bulk procurement plans for magnesium alloy materials, with projections that by the end of 2026, the penetration rate of magnesium alloys in commercial satellite structural components will exceed 30%.

Guided by the "dual carbon" goals, magnesium alloys—hailed as the "green engineering material of the 21st century"—are becoming a popular material in strategic emerging industries . Linchuan District, Fuzhou City, Jiangxi Province, has seized the development opportunity, driving high-quality development of the magnesium industry through technological innovation, rapidly painting a new "magnificent" industrial blueprint. Entering the Linchuan Economic Development Zone, inside the Jiangxi Industrial Innovation Center of the National Engineering Research Center for Magnesium Alloy Materials, researchers are busily operating advanced equipment. The center was formally established through signing in May 2025, led by Academician Pan Fusheng, honorary director of the National Engineering Research Center for Magnesium Alloy Materials, bringing together numerous top industry experts . The center has established close cooperative relationships with multiple universities and institutes, including Chongqing University and the Jiangxi Academy of Sciences. It comprises seven departments, including casting forming, plastic processing, surface treatment, magnesium industry big data, and analysis testing, constructing a full-chain innovation ecosystem from "technology R&D—pilot validation—industry incubation." "Currently, the center is dedicated to the R&D of six key projects, including the development of big data models specifically for the magnesium alloy industry, and the development of high-speed extrudable magnesium alloy compositions and extrusion processes," introduced Zou Weiqing, the center's director . Not far from the center, inside the production workshop of Fuzhou Anmei New Materials Technology Co., Ltd., ten brand-new extrusion machines are neatly arranged, with workers busy installing and debugging. "New equipment and new workshops are about to be put into use, and we expect to achieve full mass production by the end of April," said Song Lihua, the company's general manager, full of confidence . This enterprise, with a total investment of 120 million yuan, primarily produces magnesium alloy products such as electric bicycle wheels, frames, motor housings, and control panels. Its orders for this year are already fully booked until the end of the year . "Our orders for this year are already booked through year-end, and we are confident in building the largest wrought magnesium alloy production base in China by June," Song Lihua stated . In 2026, the company plans to produce 5 million magnesium alloy products annually; by 2027, production volume is set to increase by another 70% . To support the development of the magnesium industry, Linchuan District has prepared 3,000 mu of land in its first phase to advance the construction of a magnesium industrial park, researched and introduced special policy packages, and established industrial guidance funds . Currently, Sichuan Lever Mate's project for producing 100,000 tons/year of high-strength magnesium alloy materials has landed in Linchuan, and the nationally recognized "little giant" specialized and sophisticated enterprise Fujian Shenye Casting has also invested 1 billion yuan to settle there . The regional magnesium alloy industry is moving from "accumulating momentum" to "achieving substantial growth."

Although magnesium is lighter than aluminum, its industrial application has been relatively limited, partly because the processing of magnesium is considered complex and energy-intensive . Recently, research teams from various departments at TU Bergakademie Freiberg, together with industrial partners, successfully constructed an end-to-end climate-friendly process chain for lightweight magnesium components. The research team achieved a dual reduction in both energy requirements and CO₂ emissions throughout the entire process flow—including the introduction of hydrogen in melting and heating technologies, shortened process routes, and the use of cold-formable magnesium alloys . The consortium successfully developed various lightweight product demonstrators, including magnesium computer housings, rail seat backs for high-speed trains such as the TGV, hinge parts for transport containers, and an airflow channel for a hovercraft rescue vehicle. This new manufacturing process comprises three core modules: Module 1: Hydrogen Substitution—Replacing fossil fuels with up to 100% climate-neutral hydrogen. Converting melting and heating processes to hydrogen and optimizing energy efficiency is a key step towards producing magnesium in a climate-neutral and more cost-effective way . Researchers use digital twins to better understand the processes and improve them during operation. Module 2: Shortened Process Route—To achieve rapid conversion of magnesium melt into semi-finished products, the team relies on casting-rolling technology to directly produce magnesium sheets with a thickness of approximately 5 millimeters, significantly reducing subsequent forming steps . The heat from the casting process is utilized directly for forming, resulting in sheets or wires that already have nearly the desired component shape, thus reducing energy and time-consuming downstream process steps. Module 3: Novel Magnesium Alloy Application—Utilizing the calcium-containing magnesium alloy ZAX210. This alloy can be processed well even at comparatively low forming temperatures of around 200°C, allowing forming processes to be realized at significantly lower temperatures without compromising component properties . For wire production, the research team also developed the GieWaCon process, combining wire casting rolling with the CONFORM™ process—already established for materials like copper—and applied it to magnesium for the first time . The magnesium wires produced achieved a final diameter of 1.6 millimeters, either directly using the CONFORM™ process or through subsequent wire drawing. Additionally, the research team investigated suitable surface coatings for all prototypes and analyzed and optimized various welding processes. A CO₂ calculator (CLEAN-Mag App) was specially developed in the project, enabling companies to compile and compare possible process chains for magnesium forming, helping to reduce emissions in industrial processes .

In early 2026, the international magnesium industry presents a dual picture of "environmental困境" and "technological innovation" coexisting. In the United States, the state government of Utah used $30 million from its rainy day fund to acquire the idle US Magnesium plant on the west shore of the Great Salt Lake . This move was not just about stopping the plant from continuing to withdraw lake water, but also an attempt to take control of half a century of unregulated pollution. Since 1972, the facility had been one of Utah's largest polluters, at its peak responsible for 92% of the state's toxic air emissions. For decades, unlined ponds leaked acidic waste toward the Great Salt Lake. In 2001, the company's predecessor used bankruptcy to escape cleanup liability. History seemed poised to repeat itself. The deal terminates the company's water leases and secures land that could host low-water mineral extraction. However, the real reckoning is just beginning. The EPA estimates cleanup costs will be "well over" $100 million . Meanwhile, arsenic and lead from the exposed lakebed blow east toward Salt Lake City. Across the Atlantic, Austria is writing a different chapter in magnesium technology. An international research project conducted by the LKR Light Metal Competence Centre at the Austrian Institute of Technology has successfully developed wire preparation technology for the calcium-containing magnesium alloy ZAX210 . This alloy offers better formability than traditional magnesium alloys but still faces challenges in industrial-scale wire production. The research team developed a novel process route: twin-roll casting to produce homogeneous feedstock, followed by continuous rotary extrusion and multiple drawing passes to form finished wire . The LKR team employed computer simulation to systematically analyze the evolution of grain structure during processing, identifying optimal parameter windows for key variables such as temperature and deformation rate. This study marks the first time controllable processing of ZAX210 alloy from cast billet to fine wire has been achieved across the entire process chain, opening new application pathways for magnesium alloy wire in high-end fields such as medical devices and 3D printing .

Recently, the team of Professor Xu Lianyong and Associate Professor Hao Kangda from Tianjin University achieved a significant breakthrough in the field of magnesium alloy research, with the relevant findings published in the top international materials journal Journal of Magnesium and Alloys . The research team innovatively introduced carbon nanotubes into the laser-arc hybrid welding process for magnesium alloys, successfully reducing the weld corrosion rate by over 30%. Magnesium alloys, hailed as the "green engineering material of the 21st century," have broad application prospects in aerospace, communications, and biomedical fields. However, due to their inherently active chemical nature, magnesium alloys are prone to corrosion in corrosive environments, especially pronounced at weld seams, severely hindering their widespread application . The research team compared the corrosion resistance of AZ31B magnesium alloy base material, welds without carbon nanotubes, and welds with added carbon nanotubes. The results showed that the introduction of carbon nanotubes effectively refined the weld grains, weakened the texture orientation, and improved microstructural uniformity. After adding carbon nanotubes, both the hydrogen evolution corrosion rate and the weight loss corrosion rate of the welds decreased by more than 30%, and the density of corrosion products significantly increased . Electrochemical tests further confirmed this breakthrough: the corrosion current density of welds with added carbon nanotubes was 1.220 μA/cm², with a polarization resistance of 7155 Ω·cm²; in contrast, welds without carbon nanotubes exhibited a corrosion current density of 2.480 μA/cm² and a polarization resistance of only about 269.5 Ω·cm² . The study also found that the addition of carbon nanotubes increased the precipitated phase content in the welds from 0.60% to 1.76%. These precipitated phases release Al³⁺ during the corrosion process, promoting the formation of a dense Al₂O₃ passive film, effectively preventing further erosion of the metal matrix by corrosive media. This research achievement provides an important scientific basis and technical support for the industrial application of magnesium alloys in corrosive environments.

On February 26, at the "Conference on Persisting in Innovation-Driven Development, Accelerating Industrial Clustering, and Promoting High-Quality Development" held in Anhui Centralized Zone, 16 key industrial projects with a total investment of 7.26 billion yuan were centrally signed and settled . The signed projects involve fields such as new energy, new materials, electronic information, and high-end equipment, with both individual project quality and technological content reaching historic highs. Notably, multiple magnesium alloy industrial chain projects became highlights of this signing ceremony, including a project for 20,000 tons/year of magnesium alloy pelletizing, a project for 200 tons/year of rolled magnesium sheets, and a project for 330 units/year of magnesium smelting equipment . These projects are key links that can extend the aluminum-magnesium based new material industrial chain, injecting new momentum into the regional clustered development of the magnesium alloy industry. Additionally, an aviation power battery production and manufacturing project with a total investment of 1 billion yuan was also signed, primarily constructing a 2.5GWh aviation power battery production line. Upon completion and reaching full capacity, the expected annual output value could reach 5 billion yuan . This project will fill the gap in the aviation power battery field within the zone and provide support for seizing the technological high ground in the new energy industry.

With the release of the latest edition of the “Guidance Catalog for First-Batch Application Demonstration of Key New Materials Supported by the State,” multiple high-performance magnesium alloys and their deep-processed products have been explicitly included, qualifying for policy support such as application insurance compensation. Industry analysis reports indicate that driven by robust demand across automotive, rail transit, 3C electronics, aerospace, and other sectors, China's magnesium alloy industry is entering a golden development period. By 2026, the domestic magnesium alloy market is projected to exceed 100 billion yuan. Relevant industrial parks nationwide are accelerating their development to establish a complete innovation-driven industrial chain—from raw materials to high-end products—thereby enhancing China's influence in the global magnesium industry.

Addressing the challenge of recycling waste generated during magnesium alloy production and processing, a novel “low-temperature smelting-high-efficiency purification” recovery technology has recently passed acceptance testing. This technology elevates the recovery rate of various magnesium alloy scraps to over 95%, with recycled magnesium matching the quality of primary magnesium while reducing energy consumption by approximately 40%. This advancement not only substantially lowers magnesium alloy production costs but also significantly elevates the resource recycling efficiency and environmental sustainability of the entire magnesium industry chain. Aligned with China's national “dual carbon” strategic goals, it solidifies the environmental foundation for the widespread adoption of magnesium alloys.

In the field of biomedical materials, significant clinical achievements have been made in the research of degradable magnesium alloy implants. Pure magnesium and magnesium alloy bone screws and plates, jointly developed by universities and hospitals, have demonstrated promising results in clinical trials for fracture treatment. Compared to traditional stainless steel or titanium alloy implants, magnesium alloy implants gradually degrade and are absorbed within the human body. This eliminates the need for painful secondary surgeries to remove them and promotes bone growth through their degradation products. The latest follow-up data indicates that patients are recovering well with no adverse inflammatory reactions. This technology is expected to be commercialized within the next few years, benefiting a large number of patients.

For years, magnesium alloy wheels faced challenges in widespread adoption due to corrosion resistance and cost issues. A leading magnesium industry giant recently announced that through novel surface treatment technology and integrated forging processes, it has overcome corrosion resistance hurdles and successfully achieved stable, large-scale production of oversized (22-inch and above) magnesium alloy wheels. Compared to aluminum alloy wheels, the new product is approximately 25% lighter and offers superior heat dissipation, enhancing vehicle handling and braking performance. The product has already secured orders from several European luxury car brands and is expected to pioneer a new trend in high-end personalized modifications and original equipment manufacturing.

With the rapid growth of the commercial aerospace industry, weight reduction has become a core objective in satellite design. Reports indicate that a space technology company has successfully applied its independently developed magnesium-lithium alloy to the brackets and partial hull of a new-generation communications satellite for the first time. Magnesium-lithium alloy is the world's lightest metallic structural material, with a density approximately half that of traditional aluminum alloys. This application achieves approximately 30% weight reduction in satellite components, effectively increasing payload capacity. It may significantly lower the cost per kilogram per launch, marking a crucial step forward in China's application of lightweight materials in aerospace.

Recently, a domestic materials research team successfully developed a new type of high-strength, high-ductility magnesium alloy sheet. This material achieves internationally advanced comprehensive mechanical properties at room temperature, and its excellent formability enables its application in complex automotive structural components. Industry experts note this advancement will significantly accelerate the lightweighting of critical new energy vehicle components such as battery pack housings and seat frames. It is projected to reduce vehicle weight by 50-70 kilograms per car, providing crucial material support for extending driving range. Currently, the material has entered joint testing phases with multiple leading automakers.

AZ31B magnesium alloy sheet - a deformation magnesium alloy material that combines lightweight and excellent mechanical properties. This alloy achieves a tensile strength of ≥ 260MPa, a yield strength of ≥ 180MPa, and an elongation of ≥ 10% in the H24 work hardened state by precisely controlling the composition ratios of Al (2.5% -3.5%), Zn (0.7% -1.3%), and Mn (≥ 0.20%). Its density is only 1.78g/cm ³ (equivalent to 2/3 of aluminum alloy), and its specific strength is as high as 146MPa · cm ³/g. It is particularly suitable for lightweight demand fields such as aerospace structural components, 3C electronic product casings, and new energy vehicle battery casings. Material Standard System Composition specifications: Complies with ASTM B90/B90M-21 standards, with Fe ≤ 0.005%, Si ≤ 0.10%, Cu ≤ 0.05%, Ni ≤ 0.005% (strictly controlling corrosive elements) Physical properties: density 1.78g/cm ³, thermal conductivity 96W/(m · K), coefficient of linear expansion 26.0 × 10 ⁻⁶/℃ (20-100 ℃) Breakthrough in Rolling Technology Warm rolling technology: using 300-350 ℃ multi pass rolling (pass reduction of 10% -15%), with a total deformation of ≥ 80% Surface treatment: Online fluorination treatment forms a 0.5-1 μ m protective film (salt spray performance is improved by 5 times) Microstructural characteristics SEM analysis: The dynamic recrystallization grain size is 5-15 μ m, and the β - Mg17Al12 phase (10-30nm) is discretely distributed along the grain boundaries XRD detection: basal texture strength ratio ≤ 3.0 (0002)//ND Mechanical performance spectrum Anisotropy: Rolling direction/transverse strength ratio ≥ 0.90, r value=2.5-3.0 (excellent deep drawing performance) Dynamic bearing capacity: Impact toughness ≥ 25J/cm ² (Charpy V-notch) Forming processing characteristics Stamping performance: ultimate deep drawing ratio LDR ≥ 2.3, minimum bending radius 1.5T (preheated at 150 ℃) Superplastic forming: m value ≥ 0.5 at 300 ℃, ultimate elongation ≥ 400% Corrosion resistant innovation Surface treatment: Micro arc oxidation film thickness of 20-30 μ m (porosity ≤ 5%), no substrate corrosion after 1000 hours of salt spray testing Galvanic protection: TiN coating isolation is used when in contact with aluminum alloy (current density ≤ 0.1 μ A/cm ²) Welding adaptability Laser welding: Welding speed of 5m/min at a power of 2kW, porosity ≤ 0.5% Friction Stir Welding: Joint coefficient ≥ 0.9 when traveling at a speed of 400mm/min Shock absorption performance data Damping coefficient: SDC ≥ 25% (10 times higher than 6061 aluminum alloy) Vibration attenuation: resonance amplitude half-life ≤ 0.5s (ISO 10846 standard)

Since 2000, magnesium alloys have ushered in a glorious "golden 25 years". In the 20th century, magnesium was merely "the third structural metal in the laboratory". But now, it has become the common choice for automobiles, bicycles, high-speed trains, aircraft, mobile phones, robots, and even future electric vertical take-off and landing aircraft (eVTOL). The performance, processing technology and application scenarios of magnesium alloys have all achieved a leap from "usable" to "very useful", and then to "essential".   Compared with other materials, magnesium alloys possess low density, high shock absorption, excellent electromagnetic shielding, noise reduction performance and processing-recycling advantages. Despite the processing challenges, their wide application has made them a hot topic in materials science research.   The industrial grade magnesium can reach a purity of over 99.99%. However, pure magnesium itself cannot be used as a structural material. To enhance the properties of pure magnesium, alloying elements such as aluminum, zinc, lithium, manganese, zirconium and rare earth can be added to form magnesium alloys, which have high strength and are widely used in the field of structural materials. Depending on different alloying elements, magnesium alloys can be classified into five series: Mg-Al (magnesium-aluminum alloy), Mg-Zn (magnesium-zinc alloy), Mg-Mn (magnesium-manganese alloy), Mg-Zr (magnesium-zirconium alloy) and Mg-RE (magnesium-rare earth alloy).   Magnesium alloys, as the lightest metal structural materials, have gained popularity in the aerospace industry due to their low density, high specific stiffness, excellent thermal conductivity, and corrosion resistance. They have become the "favored choice" in this field. From Mr. Qian Xuesen's emphasis on "every gram of weight reduction is a contribution", to the current industry trend where the global market size is expected to exceed 2.4 billion US dollars, the application value of magnesium alloys runs through numerous fields such as aerospace and aviation. In the future, magnesium alloy materials will undoubtedly play a key role in technological research and development in fields such as aerospace and new energy vehicles.   The future development of the magnesium alloy industry will be achieved in three steps:   1. Material side: Multifactorial microalloying with rare earth/aluminum/zinc, with tensile strength exceeding 350 MPa, and corrosion resistance in salt spray test lasting over 1000 hours, achieving "unrustic magnesium".   2. Process side:    • High vacuum die casting + real-time vacuum extraction technology, with shrinkage rate reduced to 0.2%, and yield rate matching that of aluminum alloys;    • High-speed extrusion mold steel (H13 + Nb microalloy) has a lifespan increased by 2 times, and extrusion speed raised to 30 m/min.   3. Industry side:    • Establish a closed-loop recycling system for magnesium alloys (recycled magnesium energy consumption is only 5% of the original magnesium), securing long-term cost advantages;

New Breakthrough in Magnesium Alloy Corrosion Resistance Technology Magnesium alloy, as the lightest metallic structural material (with a density of 1.74 g/cm³—only two-thirds that of aluminum alloy and one-fifth that of steel), has been widely used in the automotive, aerospace, 3C electronics, and medical fields due to its high specific strength, excellent electromagnetic shielding properties,etc. For example, using magnesium alloy for automotive engine housings can reduce weight by 30%, and reducing the weight of electric vehicle motor housings by just 7 kg can increase power density to 4.4 kW/kg. In the medical field, its biodegradable properties are leveraged to manufacture bone screws and vascular stents. However, magnesium alloys exhibit extremely high chemical reactivity. The naturally formed oxide film on their surface is loose and porous, making them prone to electrochemical corrosion in humid or salt-spray environments, which can lead to material failure.  Evolution of Corrosion Resistance Technology: surface treatment technologies have undergone three generations of development: First Generation: Physical Barrier. Represented by anodizing and micro-arc oxidation, these methods form a ceramic layer through electrolysis to isolate corrosive media. However, traditional processes result in uneven film thickness, high porosity, and can only withstand neutral salt spray tests for less than 500 hours. Additionally, they are energy-intensive. Second Generation: Material Modification. This includes rare-earth conversion coatings and ultra-fine grain structure strengthening. These methods reduce the risk of localized corrosion by optimizing the distribution of alloy phases, but the processes are complex and the costs are relatively high. Third Generation: Self-healing Coatings. Represented composite oxidation technology, these coatings combine physical barrier and chemical self-repair functions to achieve long-term anti-corrosion. Process Innovation: Through a multi-stage oxidation reaction, a black film layer with a thickness of 5 to 30 micrometers is generated, which combines compactness with a porous structure, balancing the needs for insulation and heat dissipation. In practical applications, magnesium alloy surface corrosion protection technology has demonstrated tremendous potential. For example, in the automotive manufacturing field, this technology can enhance the corrosion resistance of magnesium alloy components and reduce maintenance costs; in the 3C electronics and new energy fields, it can protect magnesium alloy casings from corrosive sources such as sweat and dust, improving product reliability and user experience. With further advancements in technological performance, the scope of application will continue to expand. At the same time, combined with other advanced surface treatment technologies, a more diversified range of magnesium alloy corrosion protection solutions can be formed to meet the diverse performance requirements of different fields for magnesium alloys.