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Japan developed high-strength magnesium alloy parts for the future body parts
Release date: 2017-08-15 16:35:18 Number of visits: 2377
According to foreign media reports, the National Institute of Materials and Materials (NIMS) research team and the National Nagaoka University of Technology (Nagaoka University of Technology) jointly developed a new high-strength magnesium alloy plate (Mg-1.1Al -0.3Ca-0.2Mn-0.3Zn).
Compared to some of the current car body sheet metal sheet used by the aluminum sheet metal (aluminum sheet metal), its molding performance at room temperature is quite good. After heat treatment, the magnesium alloy strength is higher than the aluminum alloy, which only uses a common metal material, the future or will become a low-cost lightweight automotive sheet.
A long time ago, lightweight magnesium alloy has attracted the attention of the automotive industry, many car prices want to apply the material to all types of automotive applications. However, due to the low strength of the magnesium alloy at room temperature, poor molding performance, hinder the application of magnesium plate-like alloy to promote. In general, stretch formability exhibits a reverse correlation with yield strength. For this reason, it is difficult to ensure high strength and high molding performance at the same time.
However, recent studies have shown that dilution of the Mg-Al-Ca-Mn (AXM) system after the ratio, or will be made of industrial grade wrought alloys (wrought alloys), so that it has an extraordinary high-speed extrusion (high-speed extrusionability ), Its age-hardening response (age-hardening response) is also very fast. If it can be applied to the plate-like alloy, is expected to have a huge impact on the automotive industry.
As a result, the team has repeatedly tried to develop sheet alloys through the AMX system. During the processing of Mg-1.1Al-0.3Ca-0.2Mn at.% (Atomic percent) alloys, it was found that only a small amount of zinc (0.3 at.%) Was added to the Mg-1.1Al-0.3Ca-0.2Mn alloy , Will greatly enhance its extended forming performance. In addition, after a short time aging (aging) will lead to a significant increase in the strength of zinc alloy.
The newly developed alloy is named AXMZ1000, which alloy at room temperature molding performance comparable to medium-strength aluminum alloy, which is used to manufacture car body parts. In addition, the strength of the alloy 1.5-2 times higher than the aluminum alloy.
After adding a little zinc and magnesium metal to the alloy, fine grain structures will be formed. After adding aluminum and calcium, high strength will be achieved, thanks to the generation of atomic clusters, Strength of the alloy.
Newly developed alloys are made of ordinary metal, the material cost is not expensive. The alloy production and heat treatment process is simple, the alloy can be processed into metal sheet, the process is also commonly used in the manufacture of aluminum.
Compared to some of the current car body sheet metal sheet used by the aluminum sheet metal (aluminum sheet metal), its molding performance at room temperature is quite good. After heat treatment, the magnesium alloy strength is higher than the aluminum alloy, which only uses a common metal material, the future or will become a low-cost lightweight automotive sheet.
A long time ago, lightweight magnesium alloy has attracted the attention of the automotive industry, many car prices want to apply the material to all types of automotive applications. However, due to the low strength of the magnesium alloy at room temperature, poor molding performance, hinder the application of magnesium plate-like alloy to promote. In general, stretch formability exhibits a reverse correlation with yield strength. For this reason, it is difficult to ensure high strength and high molding performance at the same time.
However, recent studies have shown that dilution of the Mg-Al-Ca-Mn (AXM) system after the ratio, or will be made of industrial grade wrought alloys (wrought alloys), so that it has an extraordinary high-speed extrusion (high-speed extrusionability ), Its age-hardening response (age-hardening response) is also very fast. If it can be applied to the plate-like alloy, is expected to have a huge impact on the automotive industry.
As a result, the team has repeatedly tried to develop sheet alloys through the AMX system. During the processing of Mg-1.1Al-0.3Ca-0.2Mn at.% (Atomic percent) alloys, it was found that only a small amount of zinc (0.3 at.%) Was added to the Mg-1.1Al-0.3Ca-0.2Mn alloy , Will greatly enhance its extended forming performance. In addition, after a short time aging (aging) will lead to a significant increase in the strength of zinc alloy.
The newly developed alloy is named AXMZ1000, which alloy at room temperature molding performance comparable to medium-strength aluminum alloy, which is used to manufacture car body parts. In addition, the strength of the alloy 1.5-2 times higher than the aluminum alloy.
After adding a little zinc and magnesium metal to the alloy, fine grain structures will be formed. After adding aluminum and calcium, high strength will be achieved, thanks to the generation of atomic clusters, Strength of the alloy.
Newly developed alloys are made of ordinary metal, the material cost is not expensive. The alloy production and heat treatment process is simple, the alloy can be processed into metal sheet, the process is also commonly used in the manufacture of aluminum.