The hottest new high-strength magnesium alloy plat

Japan's research and development of new high-strength magnesium alloy plates may become a low-cost lightweight vehicle sheet

compared with the aluminumsheetmetal currently used by some car companies for body sheet metal parts, its molding performance at room temperature is quite excellent. After heat treatment, the strength of this magnesium alloy is higher than that of aluminum alloy. It only uses common metal materials, and may become a low-cost lightweight vehicle sheet in the future

according to foreign media reports, the research team of the nationalinstituteformaterialsscience (NIMS) and the national Nagaoka University of technology jointly developed a new high-strength magnesium alloy plate (mg – 1.1al – 0.3ca – 0.2mn – 0.3zn)

compared with the aluminumsheetmetal currently used by some car companies for body sheet metal parts, its formability at room temperature is quite excellent. After heat treatment, the strength of this magnesium alloy is higher than that of aluminum alloy. It only uses common metal materials, and may become a low-cost lightweight vehicle sheet in the future

a long time ago, lightweight magnesium alloy has attracted the attention of the automotive industry, and many automotive enterprises hope to apply this material to various automotive applications. However, the low strength and poor formability of magnesium alloys at room temperature hinder the application and promotion of magnesium sheet alloys. Generally, stretchformability is inversely related to yield strength. Therefore, it is difficult to ensure high strength and high molding performance at the same time

however, recent studies have shown that after diluting mm20 and above with the ratio of 4 and 10 degrees g-al-ca-mn (AXM) system, industrial grade forged alloys will be made, which will have extraordinary high-speedextrudability and extremely fast age hardeningresponse. If it can be applied to plate-like alloys, it is expected that the additives added can be reprocessed repeatedly without seriously damaging their original functions, which will have a huge impact on the automotive industry

therefore, the team has tried many times to develop sheetalloys through amx system. In process mg – 1.1al – 0.3ca – 0.2mnat.% During the (atomic percentage) alloy, it was found that only a small amount of zinc (0.3at.%) needs to be added to the Mg – 1.1al – 0.3ca – 0.2mn alloy to have excellent weather resistance and scratch resistance, which will greatly improve its ductility. In addition, after subsequenctshortaging, the strength of zinc containing alloys will be greatly improved

the newly developed alloy is named axmz1000. The formability of this alloy at room temperature is comparable to that of medium strength aluminum alloy, which is mostly used to manufacture automobile body parts. In addition, the strength of the alloy is 1. 5% higher than that of aluminum alloy Times

after adding a little zinc and magnesium metal to this alloy, fine grain structures will be formed; After adding aluminum and calcium, high strength will be achieved, thanks to the promise of pingkuang group to achieve "four bases" for the formation of atomicclusters, thereby improving the strength of the alloy

the newly developed alloys are all made of ordinary metals, and their material costs are not expensive. The manufacturing and heat treatment process of the alloy is simple, and the alloy can be processed into sheet metal. The process used is also common in aluminum alloy manufacturing