设计并制备一种超高强导电Cu-6.0Ni-1.0Si-0.5Al-0.15Mg-0.1Cr(质量分数,％)合金.通过测量合金的硬度,分析经固溶处理并分别经600～850℃等温处理后再在450℃时效处理1h的合金力学性能的变化规律,建立合金的时间-温度-性能(TTP)曲线.通过透射电镜观察,研究合金在等温处理过程中的第二相的析出规律.结果表明:合金的鼻尖温度约为725℃,淬火敏感区域为675～775℃.合金在淬火敏感区进行等温处理时,晶内析出的δ-Ni2Si和Ni3A1迅速形核和长大;延长等温时间,析出相粗化,合金的硬度随之降低.合金在鼻尖温度附近表现出高的淬火敏感性.
参考文献
| [1] | J. Chen;W. Yan;C.X. Liu.Dependence of texture evolution on Initial orientation In drawn single crystal copper[J].Materials Characterization,20112(2):237-242. |
| [2] | Hui Xie;Lei Jia;Zhenlin Lu.Microstructure and solidification behavior of Cu-Ni-Si alloys[J].Materials Characterization,20092(2):114-118. |
| [3] | 张毅;刘平;田保红;刘勇;李瑞卿;许倩倩.Cu-Ni-Si-P合金热变形行为及热加工图[J].中国有色金属学报（英文版）,2013(8):2341-2347. |
| [4] | Guoliang, X.;Qiangsong, W.;Xujun, M.;Baiqing, X.;Lijun, P..The precipitation behavior and strengthening of a Cu-2.0wt% Be alloy[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2012:326-330. |
| [5] | M. A. Mangan;G. J. Shiflet.Three dimensional investigation of Cu-Ti discontinuous precipitation[J].Scripta materialia,19974(4):517-522. |
| [6] | J.C. Pang;Q.Q. Duan;S.D. Wu;S.X. Li;Z.F. Zhang.Fatigue strengths of Cu–Be alloy with high tensile strengths[J].Scripta materialia,201011(11):1085-1088. |
| [7] | Lei, Q.;Li, Z.;Dai, C.;Wang, J.;Chen, X.;Xie, J.M.;Yang, W.W.;Chen, D.L..Effect of aluminum on microstructure and property of Cu-Ni-Si alloys[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2013:65-74. |
| [8] | Qian Lei;Zhou Li;Anym Zhu.The transformation behavior of Cu-8.0Ni-1.8Si-0.6Sn-0.15Mg alloy during isothermal heat treatment[J].Materials Characterization,20119(9):904-911. |
| [9] | 王俊峰;贾淑果;陈少华;刘平;宋克兴;刘红勋.固溶态Cu-Ni-Si合金时效过程的相变动力学[J].中国有色金属学报,2012(10):2862-2867. |
| [10] | 张凌峰;刘平;康布熙;赵冬梅;田保红;董企铭.Cu-3.2Ni-0.75Si-0.30Zn合金时效过程的动力学分析[J].中国有色金属学报,2003(3):717-721. |
| [11] | 张毅;刘平;田保红;陈小红;刘勇.Cu-Ni-Si-P-Cr 合金高温热变形行为及动态再结晶[J].中国有色金属学报,2013(4):970-976. |
| [12] | 雷前 .超高强CuNiSi系弹性导电铜合金制备及相关基础研究[D].中南大学,2014. |
| [13] | 刘文军;张新明;刘胜胆;周新伟.均匀化对7050铝合金板材淬火敏感性的影响[J].中国有色金属学报,2010(6):1102-1109. |
| [14] | Shengdan Liu;Qimin Zhong;Yong Zhang;Wenjun Liu;Xinming Zhang;Yunlai Deng.Investigation of quench sensitivity of high strength Al-Zn-Mg-Cu alloys by time-temperature-properties diagrams[J].Materials & design,20106(6):3116. |
| [15] | Q. Lei;Z. Li;T. Xiao.A new ultrahigh strength Cu-Ni-Si alloy[J].Intermetallics,2013:77-84. |
| [16] | Shen, Leinuo;Lia, Zhou;Dong, Qiyi;Xiao, Zhu;Li, Si;Lei, Qian.Microstructure evolution and quench sensitivity of Cu-10Ni-3Al-0.8Si alloy during isothermal treatment[J].Journal of Materials Research,20155(5):736-744. |
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