摘要
采用合金熔炼、组织分析和拉伸试验,研究Mg-9Gd-Sm-0.5Zr合金的微观组织和力学特性。结果表明,合金的组织由α-Mg基体、Mg5Gd和Mg41Sm5相组成,晶界上有许多颗粒状相和短棒状相,晶内分布少数尺度比较大的鱼骨状和块状析出相。与其它系镁合金不同的是,Mg-9Gd-Sm-0.5Zr合金抗拉强度随温度升高而升高。
Mg-9Gd-Sm-0.5Zr alloy was prepared by induction melting, and the microstructure, phase structure and mechanical properties of the alloy were analyzed by microstrcture observation and the tensile test. The results show that the microstructure of the alloy consists of α-Mg matrix, Mg5Gd and Mg41Sm5 phases, and there are many granular and short rod-like phases distributing on the grain boundary and a few relatively large- scale fishbone and massive precipitated intragranular phase. With the temperature increasing, the tensile strength of Mg-9Gd-Sm-0.5Zr alloy increases, and the principle of the abnormal temperature effect was analyzed and concluded.
出处
《兵器材料科学与工程》
CSCD
北大核心
2014年第2期12-15,共4页
Ordnance Material Science and Engineering
基金
国家自然科学基金(51171059)
河南省高校科技创新团队支持计划(2012IRTSTHN008)
河南省基础与前沿技术研究计划(102300410018)
