Hot deformation behavior and microstructure evolution of TiC–Al_2O_3/Al composites

作     者：Rui-Ying Zhang Zhi-Ming Shi Xiu-Mei Zhang 

作者机构：School of Materials Science and EngineeringInner Mongolia University of Technology Key Laboratory of Light Metal Materials 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2015年第34卷第10期

页      面：725-730页

核心收录：

学科分类：0806[工学-冶金工程] 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] 0703[理学-化学] 0702[理学-物理学] 

基　　金：financially supported by the Inner Mongolia Science and Technology Reward Foundation(No.20101707) the Inner Mongolia Natural Science Foundation(No.2013MS0804) the Inner Mongolia High School Scientific Research Foundation(No.NJZZ14056) the Inner Mongolia University of Technology Foundation(No.ZD20120015) 

主　　题：TiC–Al2O3/Al composites Hot deformation Flow stres 

摘      要：Hot compression behavior of TiC–Al2O3/Al composites was studied using the Gleeble-1500 system at a temperature range of 300–550 °C and at strain rate range of 0.01–10.00 s-1. The associated structural changes were studied by TEM observations. The results show that stress level decreases with deformation temperature increasing and strain rate decreasing, which can be represented by a Zener–Hollomon parameter in an exponent-type equation with hot deformation activation energy Q of 172.56 kJ·*** recovery occurs easily when strain rates are less than 10.00 s-1. Dynamic recrystallization can occur at strain rate of 10.00 s-1.