Microstructure evolution and properties of Cu-Cr alloy during continuous extrusion process
Microstructure evolution and properties of Cu-Cr alloy during continuous extrusion process
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Cu-Cr合金连续挤压过程中的组织演变及性能
DOI：
10.1016/j.jallcom.2017.01.355
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发表时间：
2017-05
影响因子：
6.2
通讯作者：
Ziqi Yang
中科院分区：
文献类型：
--
作者：
Yuan Yuan;Zhou Li;Zhu Xiao;Ziqian Zhao;Ziqi Yang
采用光学显微镜、透射电镜、硬度和电导率等测试手段，研究了一种典型的沉淀强化Cu-0.82Cr合金在连续挤压过程中的组织演变和性能。详细讨论了该合金的剧烈塑性变形及变形过程中的析出行为。结果表明，在直角弯曲区，硬度先升高，达到最大值148 HB，在延伸挤压区硬度又降低。在连续挤压过程中，合金发生了剧烈的变形和析出过程，纳米级析出物在一定程度上抑制了再结晶过程，这两种因素对挤压态合金的性能都有一定的贡献。挤压态合金的平均晶粒尺寸约为1.5 μm，屈服强度、超高强度、延伸率和电导率分别达到292 MPa、346 MPa、34%和77.5%IACS。
The microstructure evolution and properties of a typical precipitation strengthened Cu-0.82Cr alloy during continuous extrusion were investigated by means of optical microscopy, transmission electron microscopy, hardness and conductivity measurement. The severe plastic deformation and precipitation behavior of the alloy during deformation were discussed in detail. The results showed that hardness increased firstly until reaching the maximum value of 148 HB in right-angle bending, and then decreased in the extending extrusion zone. Severe deformation and precipitation process occurred during continuous extrusion, and the nano-scale precipitates inhibited the recrystallization in some extent, both of which contributed to the properties of the extruded alloy. The extruded alloy had an average grain size of about 1.5 μm, and it reached a yield strength, ultra-strength, elongation and electrical conductivity of 292 MPa, 346 MPa, 34% and 77.5%IACS, respectively.
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DOI：
10.4028/www.scientific.net/amr.887-888.333
发表时间：
2014-02
期刊：
Advanced Materials Research
影响因子：
--
作者：
L. Peng;H. Xie;Guojie Huang;Zhen Yang;X. Mi;B. Xiong
通讯作者：
L. Peng;H. Xie;Guojie Huang;Zhen Yang;X. Mi;B. Xiong
影响因子：
6.2
作者：
N. Su;R. Guan;Xiang-Jie Wang;Yuxiang Wang;Wensen Jiang;H. Liu
通讯作者：
N. Su;R. Guan;Xiang-Jie Wang;Yuxiang Wang;Wensen Jiang;H. Liu
影响因子：
9.4
作者：
Correia, JB;Davies, HA;Sellars, CM
通讯作者：
Sellars, CM
影响因子：
8.4
作者：
Chengdong Xia;Yanlin Jia;Wan Zhang;Kebing Zhang;Qiyi Dong;Gen-ying Xu;Mingpu Wang
通讯作者：
Chengdong Xia;Yanlin Jia;Wan Zhang;Kebing Zhang;Qiyi Dong;Gen-ying Xu;Mingpu Wang
影响因子：
3.6
作者：
Youliang He;F. Gao;B. Song;Jian Li;R. Fu;G. Wu
通讯作者：
Youliang He;F. Gao;B. Song;Jian Li;R. Fu;G. Wu