Effects of heat treatment on microstructure and mechanical properties of Mg-5Zn-0.63Er alloy

被引：18

作者：

Zhao, Xian-feng ^{[1
]}

Li, Shu-bo ^{[1
]}

Wang, Qing-feng ^{[1
]}

Du, Wen-bo ^{[1
]}

Liu, Ke ^{[1
]}

机构：

[1] Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2013年 / 23卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Mg-5Zn-0.63Er alloy; rare earth; Er; heat treatment; microstructure; mechanical properties; ZN-Y ALLOYS; QUASI-CRYSTAL; MG; PHASE; BEHAVIOR; MAGNESIUM;

D O I：

10.1016/S1003-6326(13)62429-2

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The microstructure evolution of the Mg-5Zn-0.63Er (mass fraction, %) alloy containing quasicrystalline phase (I-phase) under the as-cast condition was investigated via different heat treatments. The results show that apart from the precipitation of the W-phase particles, the I-phase almost dissolves into the matrix after solid solution treatment at 480 degrees C for 10 h (T4 state). The solution-treated alloy was aged at 175 degrees C for 6-100 h (T6 state). The ultimate tensile strength of the peak-aged alloy is approximately 261 MPa companying with an elongation of 10.5%. The improvement of the tensile strength is mainly attributed to the presence of the rod-like MgZn2 particles.

引用

页码：59 / 65

页数：7

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