Study on the Softening Behavior of Cu–Cr–In Alloy during Annealing

Authors :: Chen Huiming
Yunqing Zhu
Hang Wang
Linsheng Tang
Bin Yang
Weibin Xie
Source :: Crystals, Volume 10, Issue 4, Crystals, Vol 10, Iss 312, p 312 (2020)
Publication Year :: 2020
Publisher :: Multidisciplinary Digital Publishing Institute, 2020.
Abstract: The softening behavior of a cold-drawn Cu&ndash Cr&ndash In alloy was investigated during annealing between 450 &deg C and 700 &deg C. The properties and microstructure evolution of the alloy were characterized using a microhardness tester, electron back-scatter diffraction, and transmission electron microscopy. Elemental In addition was found to hinder the dislocation movement and delay the recovery and recrystallization of the Cu&ndash In alloy. The experimental data were analyzed using the Johnson&ndash Mehlv&ndash Avramiv&ndash Kolmogorov model. The activation energy of recrystallization of the 60% cold-drawn Cu0.54Cr0.17In alloy was 188.29 &plusmn 18.44 kJ/mol, and the recrystallization mechanism of the alloy was attributed mainly to Cu self-diffusion.