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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  • [21] A high strength and high electrical conductivity bulk CuCrZr alloy with nanotwins
    Sun, L. X.
    Tao, N. R.
    Lu, K.
    [J]. SCRIPTA MATERIALIA, 2015, 99 : 73 - 76
  • [22] Effect of direct current pulses on mechanical and electrical properties of aged Cu-Cr-Zr alloys
    Wang, Wei
    Li, Rengeng
    Zou, Cunlei
    Chen, Zongning
    Wen, Wen
    Wang, Tongmin
    Yin, Guomao
    [J]. MATERIALS & DESIGN, 2016, 92 : 135 - 142
  • [23] Effects of strain rate on flow stress behavior and dynamic recrystallization mechanism of Al-Zn-Mg-Cu aluminum alloy during hot deformation
    Yang, Qunying
    Deng, Zanhui
    Zhang, Zhiqing
    Liu, Qing
    Jia, Zhihong
    Huang, Guangjie
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2016, 662 : 204 - 213
  • [24] Dynamic Recrystallization Behavior of a Heat-resistant Martensitic Stainless Steel 403Nb during Hot Deformation
    Zeng, Zhouyu
    Chen, Liqing
    Zhu, Fuxian
    Liu, Xianghua
    [J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2011, 27 (10) : 913 - 919
  • [25] Effect of strain rate on microstructure evolution of a nickel-based superalloy during hot deformation
    Zhang, Hongbin
    Zhang, Kaifeng
    Zhou, Haiping
    Lu, Zhen
    Zhao, Changhong
    Yang, Xiaoli
    [J]. MATERIALS & DESIGN, 2015, 80 : 51 - 62
  • [26] A high strength and high electrical conductivity Cu-Cr-Zr alloy fabricated by cryorolling and intermediate aging treatment
    Zhang, Shaojian
    Li, Rengeng
    Kang, Huijun
    Chen, Zongning
    Wang, Wei
    Zou, Cunlei
    Li, Tingju
    Wang, Tongmin
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2017, 680 : 108 - 114
  • [27] Dynamic recrystallization model of the Cu-Cr-Zr-Ag alloy under hot deformation
    Zhang, Yi
    Tian, Baohong
    Volinsky, Alex A.
    Chen, Xiaohong
    Sun, Huili
    Chai, Zhe
    Liu, Ping
    Liu, Yong
    [J]. JOURNAL OF MATERIALS RESEARCH, 2016, 31 (09) : 1275 - 1285
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