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日本三井金属公司与长岡技术科学大学及大阪府立大学共同开发出高温强度及超塑性优良的新型镁合金。三井金属公司与长岡技术科学大学共同开发的镁合金有 Mg-Tb 合金及 Mg-Gd 合金,具有350℃的耐热性,可应用于汽车发动机用活塞上。Mg-Tb 合金的拉伸强度在200℃时为33kgf/mm~2,300℃时为24kgf/mm~2,高温下的强度特性好。在传统的 Mg 合金中以 Mg-Y-Nd 合金的耐热性为最好,而新的 Mg-
Japan’s Mitsui Metals and Nagaoka University of Science and Technology and Osaka Prefecture University jointly developed high-temperature strength and excellent superplasticity of the new magnesium alloy. The magnesium alloys jointly developed by Mitsui Metals and Nagaoka University of Science and Technology have Mg-Tb alloys and Mg-Gd alloys with a heat resistance of 350 ° C and can be applied to pistons for automotive engines. The tensile strength of the Mg-Tb alloy is 33 kgf / mm at 200 ° C and 24 kgf / mm ~ 2 at 2,300 ° C, showing good strength properties at high temperatures. The heat resistance of Mg-Y-Nd alloy is the best in the traditional Mg alloy, while the new Mg-