ZAM84-4Si等通道转角挤压组织与性能的研究  

Microstructures and mechanical properties of ZAM84-4Si magnesium alloy after ECAP

作　　者：吴海优 韩永 杜强强[1] 李玉林[1] 张媛琦 刘研[1] 韩富银[1] 

机构地区：[1]太原理工大学,山西太原030024

出　　处：《中国铸造装备与技术》2016年第4期28-30,共3页China Foundry Machinery & Technology

基　　金：国家青年基金(51301118);山西省青年基金(20031039)

摘　　要：在ZAM84镁合金中加入质量分数为4%的Si,形成热强相Mg2Si,并通过等通道转角挤压变形改善合金组织形貌,并使晶粒细化,提高合金力学性能,等通道转角挤压前后屈服强度提高了113%,抗拉强度提高了50%,伸长率提高了201%。It was investigated that an addition of 4% mass fraction silicon to the ZAM84 magnesium alloy, an thermal-stable phase Mg2Si formed. Equal channel angular pressing was employed to refine the microstructure, thus improving mechanical properties. After equal channel angular pressing, the proof strength increased by 113%, the ultimate tensile strength increased by 50%, while the elongation increased to 4.3%.

关 键 词：镁合金 等通道转角挤压 组织 力学性能 机理 

分 类 号：TG146.22[一般工业技术—材料科学与工程]