在3 GPa压力作用下对Cu54.27Cr45.73合金进行不同工艺的时效处理,通过硬度、压缩屈服强度和电导率测试及显微组织观察,探讨了高压时效处理对合金力学性能及电导率的影响.结果表明:高压时效处理能改善合金的力学性能及电导率,该合金经960℃×1 h(固溶)+在3 GPa压力下480℃×1 h的时效处理后可获得较高的力学性能和电导率,其硬度、压缩屈服强度和电导率分别为181HV、249 MPa和17.86 MS/m,与相同时效温度和时效时间的常压时效处理合金相比,合金的硬度、压缩屈服强度和电导率分别提高17.53%、5.06%和4.94%.
参考文献
[1] | Cao Weichan;Liang Shuhua;Zhang Xiao.Effect of Fe on microstructures and vacuum arc characteristics of CuCr alloys[J].International Journal of Refractory Metals & Hard Materials,20112(2):237-243. |
[2] | Kowanda, C.;Hochstrasser, M.;Schwaiger, A.;Muller, F.E.H.;Plankensteiner, A.;Grohs, C..Net shape manufacturing of CuCr for vacuum interrupters[J].IEEE transactions on dielectrics and electrical insulation: A publication of the IEEE Dielectrics and Electrical Insulation Society,20116(6):2131-2137. |
[3] | 梁淑华;范志康;胡锐.细晶CuCr系触头材料的研究[J].粉末冶金技术,2000(3):196-199. |
[4] | 李晓燕;王顺兴;田保红.Cu-Cr触头材料的制备方法及进展[J].材料研究与应用,2007(4):265-269. |
[5] | HE Wen-xiong;WANG Er-de;CHEN Hui;YU Yang;LIU Jing-lei.Effects of deformation on microstructures and properties of submicron crystalline Cu-5%Cr alloy[J].中国有色金属学会会刊(英文版),2007(02):384-388. |
[6] | 周志明;王亚平;彭成允;陈园芳.时效处理对挤压CuCr25合金显微硬度及电导率的影响[J].高压电器,2008(3):225-227,231. |
[7] | Yan Chen;Ya-li Li;Jian-hua Liu.Influence of High Pressure Treatment on Microstructure Evolution of Cu-Zn Alloy[J].Materials transactions,20132(2):184-187. |
[8] | 王鹏.4 GPa压力处理对 Cu-11.68 Al合金塑性变形的影响[J].金属热处理,2014(10):105-107. |
[9] | ZHAO Jun;LIU Lin;YANG Jingru;PENG Guirong;LIU Jianhua;ZHANG Ruijun;XING Guangzhong.Effects of high pressure on the microstructure and hardness of a Cu-Zn alloy[J].稀有金属(英文版),2008(05):541-544. |
[10] | Wang Hai-Yan;Liu Jian-Hua;Peng Gui-Rong;Wang Wen-Kui.Effects of high-pressure heat treatment on the solid-state phase transformation and microstructures of Cu61.13Zn33.94Al4.93 alloys[J].中国物理B(英文版),2010(9):469-474. |
[11] | Yutoquan Ma.Effects of 4 GPa Pressure Heat Treatment on Mechanical Properties and Electrical Conductivity of CuCrNiAI Alloy[J].Materials transactions,20135(5):725-728. |
[12] | 赵军;赵晓洁;任国柱;李鑫;武向南;郭亮;李红波;孙艳荣.高温高压处理对CuCr50合金中Cr相微观力学性能的影响[J].材料热处理学报,2015(6):31-35. |
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