Microstructure and mechanical properties of MgMnAlZnCu high entropy alloy cooling in three conditions

摘要：

In this paper, alloy with composition of MgMnAlZnCu was designed by using the strategy of equiatomic ratio and high entropy of mixing. The microstructure and mechanical parameters of the new high entropy alloy cooling in three conditions were studied. The alloy was prepared by induction melting and then it was cast in copper molds in air, water and salt water respectively. The microstructure and properties of alloy samples were examined by microhardness tester, XRD, TEM, SEM and testing machine for material strength. The results showed that the alloy was composed mainly of h.c.p and Al-Mn quasicrystal phases. The alloy exhibit high hardness (431HV-467HV) and high compression strength (428MPa-450MPa) at room temperature. The alloy was fragile and the strains were from 3.29％ to 5.53％.

关键词： high entropy microstructure quasicrystal mechanical properties

作者: Rui Li Jia-cheng Gao Ke Fan

作者单位: College of Materials Science and Engineering, Chongqing University, Chongqing City,400030, China College of Materials Science and Engineering, Chongqing University, Chongqing City, 400030, China

会议类型: 国际会议

会议名称: 11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)

会议地点: 青岛

会议语种:英文

页码: 235-241

在线出版日期: 2010-09-25（万方平台首次上网日期，不代表论文的发表时间）