Fabricate of High-Strength and High-Conductivity Cu-Cr-Si Alloys through ECAP-Bc and Aging Heat Treatment
Fabricate of High-Strength and High-Conductivity Cu-Cr-Si Alloys through ECAP-Bc and Aging Heat Treatment
复制标题
ECAP-Bc和时效热处理制备高强高导铜铬硅合金
DOI：
10.3390/ma13071603
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发表时间：
2020-04-01
期刊：
影响因子：
3.4
通讯作者：
Ding, Yutian
中科院分区：
文献类型：
--
作者：
Guo, Tingbiao;Wang, Junjie;Ding, Yutian
The effect of equal channel angular pressing (ECAP) through the route Bc and aging treatment on the grain structure and properties of the Cu-1Cr-0.2Si alloy was investigated. Microstructure was detected by scanning electron microscopy (SEM), x-ray diffraction (XRD), and electron backscatter diffraction (EBSD) and the mechanical properties and electrical conductivity were tested. Results shown that after ECAP, accompanying the grains refined to nano-and submicron-structure, the Cr particles were gradually spread along the grain boundaries (GBs), aging treatment promoted Cr particles dispersed in the matrix. ECAP greatly increased the ultimate tensile strength (UTS) while having a small effect on the conductivity, and aging treatment increased electrical conductivity. The stable {111}< 110 > texture after ECAP and the lower dislocation density after aging treatment maybe the main reasons for the high conductivity of the material.
