Cu-Cr-Zr-Ag-P合金的热加工性能
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摘要
通过Gleeble-1500D热模拟试验机,对Cu-Cr-Zr-Ag-P合金在温度为550~900℃,应变速率为0.01~10 s~(-1)条件下进行高温热变形试验,对其流变应力行为、热加工性能、显微组织演变进行了研究。结果表明:合金流变应力随温度降低、应变速率升高有所提高;根据动态材料模型建立了Cu-Cr-Zr-Ag-P合金的热加工图,发现合金最佳加工区域为:0.1~2.7 s~(-1),770~900℃;结合不同条件下的显微组织演变,发现较高的温度有利于合金动态再结晶的进行。
High temperature deformation test of Cu-Cr-Zr-Ag-P alloy was carried out between 550 ℃ and 900 ℃ with strain rates ranging from0. 01-10 s~(-1) by a Gleeble-1500 D thermo-mechanical simulator. The flow stress behavior,hot-working performance and the microstructure evolution were studied and analyzed. The results show that the flow stress increases with the decrease of temperature and increase of the strain rate. The processing maps is built based on the dynamic material model for the Cu-Cr-Zr-Ag-P alloy,and the optimal processing parameters are0. 1-2. 7 s~(-1),770-900 ℃. The observation of the microstructure shows that the high temperature can promote the dynamic recrystallization.
High temperature deformation test of Cu-Cr-Zr-Ag-P alloy was carried out between 550 ℃ and 900 ℃ with strain rates ranging from0. 01-10 s~(-1) by a Gleeble-1500 D thermo-mechanical simulator. The flow stress behavior,hot-working performance and the microstructure evolution were studied and analyzed. The results show that the flow stress increases with the decrease of temperature and increase of the strain rate. The processing maps is built based on the dynamic material model for the Cu-Cr-Zr-Ag-P alloy,and the optimal processing parameters are0. 1-2. 7 s~(-1),770-900 ℃. The observation of the microstructure shows that the high temperature can promote the dynamic recrystallization.
引文
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[3]雷静果,刘平,赵冬梅,等.用导电率研究Cu-Ni-Si-Cr合金失效早期相变动力学[J].材料热处理学报,2003,24(4):22-25.Lei Jingguo,Liu Ping,Zhao Dongmei,et al.Study on the transformation kinetics of early stage aging of Cu-Ni-Si-Cr alloy by measuring the electric conductivity[J].Transactions of Materials and Heat Treatment,2003,24(4):22-25.
[4]赵冬梅,董企铭,刘平,等.Cu-3.2Ni-0.75Si合金时效早期相变规律及强化机理[J].中国有色金属学报,2002,12(6):1167-1171.Zhao Dongmei,Dong Qiming,Liu Ping,et al.Transformation and strengthening of early stage of aging in Cu-3.2Ni-0.75Si alloy[J].The Chinese Journal of Nonferrous Metals,2002,12(6):1167-1171.
[5]胡景奕,万健.高速铁路用铜合金接触线材料及其加工工艺[J].有色矿冶,2011,27(4):41-43.Hu Jingyi,Wan Jian.Copper alloy contact wire materials used for highspeed rail and its processing technology[J].Non-Ferrous Mining and Metallurgy,2011,27(4):41-43.
[6]Xia Chengdong,Jia Yanlin,Zhang Wan,et al.Study of deformation and aging behaviors of a hot rolled-quenched Cu-Cr-Zr-Mg-Si alloy during thermomechanical treatments[J].Materials and Design,2012,39:404-409.
[7]雷静果,刘平,井晓天,等.高速铁路接触线用时效强化铜合金的发展[J].金属热处理,2005,30(3):1-5.Lei Jingguo,Liu Ping,Jing Xiaotian,et al.Development of aging strengthening copper alloy used in contact wire of high-speed railway[J].Heat Treatment of Metals,2005,30(3):1-5.
[8]罗先甫,郑子樵,钟继发,等.Mg、Ag、Zn多元微合金化对新型AlCu-Li合金时效行为的影响[J].中国有色金属学报,2013,23(7):1833-1842.Luo Xianpu,Zheng Zijiao,Zhong Jifa,et al.Effect of Mg,Ag and Zn multi-alloying on aging behavior of new Al-Cu-Li alloy[J].Transactions of Nonferrous Metals Society of China,2013,23(7):1833-1842.
[9]王艳蕊,刘平,雷静果,等.稀土Y掺杂对Cu-Cr-Zr合金时效性能的影响[J].铸造技术,2005,26(6):486-488.Wang Yanrui,Liu Ping,Lei Jingguo,et al.Effect of rare earth Y inclusion on aging characteristic of Cu-Cr-Zr alloy[J].Foundry Technology,2005,26(6):486-488.
[10]Bi Liming,Liu Ping,Chen Xiaohong,et al.Analysis of phase in Cu-15%Cr-0.24%Zr alloy[J].Transactions of Nonferrous Metals Society of China,2013,23(5):1342-1348.
[11]Jia Shuguo,Liu Ping,Song Kexing,et al.Aging property of Cu-Ag-Zr alloy[J].Transactions of Materials and Heat Treatment,2010,31(9):37-40.
[12]戴姣燕,尹志民,宋练鹏,等.形变热处理对用微量Cr合金化的Cu-Zn合金组织性能的影响[J].中国有色金属学报,2006,16(6):982-988.Dai Jiaoyan,Yin Zhimin,Song Lianpeng,et al.Effects of thermomechanical heat treatment processing on microstructures and properties of Cu Zn alloy by minor Cr alloying[J].The Chinese Journal of Nonferrous Metals,2006,16(6):982-988.
[13]谢春生,周健,任合,等.稀土铬锆铜合金强化工艺研究[J].金属热处理,2001,26(6):12-14.Xie Chunsheng,Zhou Jian,Ren He,et al.Study on strengthening process of Cr-Zr-Cu-RE alloy[J].Heat Treatment of Metals,2001,26(6):12-14.
[14]Prasad Y,Gegel H L,Doraivelu S M,et al.Modeling of dynamic material behavior in hot deformation:forging of Ti-6242[J].Metallurgical Transactions A,1984,15(10):1883-1892.
[15]Zhou H,Wang Q D,Ye B,et al.Hot deformation and processing maps of as-extruded Mg-9.8Gd-2.7Y-0.4Zr Mg alloy[J].Materials Science and Engineering A,2013,576:101-107.
[16]李瑞卿,张毅,许倩倩,等.Cu-Cr-Zr-Ce合金热压缩力学行为及热加工图[J].金属热处理,2013,38(11):84-88.Li Ruiqing,Zhang Yi,Xu Qianqian,et al.Hot deformation behavior and processing map of Cu-Cr-Zr-Ce alloy[J].Heat Treatment of Metals,2013,38(11):84-88.