MICROSTRUCTURE OF DIFFERENTLY TREATED Al-Mg-Sc-Zr ALLOYS

作     者：Jie Zhang Zhimin Yin Yonghong Zhang Yongzheng Gao Qinglin Pan 

作者机构：1. Department of Materials Science and Engineering Central South University of Technology 410083 Changsha China 

出 版 物：《Journal of Central South University》 (中南大学学报（英文版）)

年 卷 期：1997年第9卷第1期

页      面：24-27页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0802[工学-机械工程] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

主　　题：Al-Mg-Sc-Zr alloy microstructure Al_3 (Sc,Zr) coherent and non-coherent 

摘      要：The microstructures of different treated Al-5Mg-0.5Sc-0. 1Zr alloys have been studied with opticalmicroscopy and transmission electron microscope (TEM). Coherent particles with the matrix were found inas-cast sample. composite Al3Sc/Al3Zr particles were found after 13 h homogenized treatment under 470℃.Coherent precipitates pinned dislocations and low-angle grain boundaries. and then restrained recrystallization. All kinds of particles of different treatments were not larger than 40nm. After high-temperaturestabilization treatments, most particles remain coherent with the matrix. The reasons of microstructurechange at different treated conditions have been analyzed.