直流电流下时效对Cu-0.86Cr合金力学性能的影响

王国为; 张彦敏; 宋克兴; 李红霞; 王青

doi:10.15980/j.tzzz.2012.12.028

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直流电流下时效对Cu-0.86Cr合金力学性能的影响
Inuence of DC Electric Current on Mechanical Properties of Thermally Aged Cu-0.86Cr Alloy
2012年32卷第12期页码：1152-1154
纸质出版日期： 2012 ，
DOI： 10.15980/j.tzzz.2012.12.028

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[1]王国为,张彦敏,宋克兴,李红霞,王青.直流电流下时效对Cu-0.86Cr合金力学性能的影响[J].特种铸造及有色合金,2012,32(12):1152-1154.

Wang Guowei 1, Zhang Yanmin1, Song Kexing1, et al. Inuence of DC Electric Current on Mechanical Properties of Thermally Aged Cu-0.86Cr Alloy[J]. Special Casting & Nonferrous Alloys, 2012,32(12):1152-1154.
[1]王国为,张彦敏,宋克兴,李红霞,王青.直流电流下时效对Cu-0.86Cr合金力学性能的影响[J].特种铸造及有色合金,2012,32(12):1152-1154. DOI： 10.15980/j.tzzz.2012.12.028.

Wang Guowei 1, Zhang Yanmin1, Song Kexing1, et al. Inuence of DC Electric Current on Mechanical Properties of Thermally Aged Cu-0.86Cr Alloy[J]. Special Casting & Nonferrous Alloys, 2012,32(12):1152-1154. DOI： 10.15980/j.tzzz.2012.12.028.

摘要

采用固溶+冷变形+有无直流电流下时效工艺制备了Cu-0.86Cr合金试样

研究了直流电流下时效对Cu-0.86Cr合金微观组织和力学性能的影响。结果表明

直流电流使合金时效后抗拉强度达到最大值所需的时效时间较短

并使抗拉强度极值降低

较无电流时低28MPa。同时直流电流改善了合金的塑性。组织观察表明

在时效过程中Cu-0.86Cr合金主要发生了回复。

Abstract

Cu-0.86Cr alloy was prepared using solution-treated

cold deformation and aging treatment with and without DC electric current.Influences of DC electric current on microstructures and mechanical properties of thermally aged Cu-0.86Cr alloy were examined.The results show that the aging time for the alloy to reach maximum tensile strength can be shorten with the decrease of the peak of tensile strength by 28 MPa after DC electric current.Meanwhile

DC electric current can improve plasticity of the alloy.The microstructure observation indicates that the recovery occurs in the alloy during aging process.