Microstructure Evolution and Softening Mechanism During Hot Deformation of Cu-0.19Cr-0.1Ag Alloy

被引：0
作者：
Li, Zhiyong [1 ]
Cao, Yanfeng [1 ]
Huang, Chengcong [1 ]
Qi, Liang [1 ]
Zhao, Hongjin [1 ]
Hao, Qiqi [1 ]
机构：
[1] Jiangxi Univ Sci & Technol, Sch Mat Sci & Engn, Ganzhou 341000, Jiangxi, Peoples R China
来源：
TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS | 2019年 / 72卷 / 04期
关键词：
Cu-0; 19Cr-0; 1Ag alloy; Hot compression; Reduction ratio of flow stress; Microstructure; Softening mechanism; CR-AG ALLOY; HIGH-STRENGTH; DYNAMIC RECRYSTALLIZATION; STRAIN-RATE; HEAT-TREATMENT; CU; BEHAVIOR; SUPERALLOY; TEXTURE; STEEL;
D O I：
10.1007/s12666-019-01579-2
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Hot deformation tests of an upward continuous cast Cu-0.19Cr-0.1Ag were performed on a thermal simulation testing machine with various strain rates (0.01-10s(-1)) at different deformation temperatures (750-950 degrees C) to investigate the microstructural evolution of hot deformation and the softening mechanism. From the results, a flow stress reduction ratio diagram was constructed. The diagram was divided into four regions with different softening mechanisms according to the stress-strain curve. Dynamic recrystallization was accompanied by two nucleation mechanisms: continuous dynamic recrystallization (CDRX) and discontinuous dynamic recrystallization, and the effect of CDRX decreased with increasing strain rate.
引用
收藏
页码：1043 / 1051
页数：9
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