丁宗业,贾淑果,邓猛,宋克兴,刘平

• 1:河南科技大学材料科学与工程学院
• 2:河南省有色金属材料科学与加工技术重点实验室

摘要(Abstract)：

利用透射电镜和高分辨电子显微镜对Cu-0.36Cr-0.03Zr合金时效处理后的析出相进行观察分析。结果表明,经450℃时效4 h后,合金显微硬度达到峰值,析出相为具有花瓣状应变场衬度的面心立方Cr相,与基体完全共格;当时效时间延长至8 h时,面心立方Cr相转变为体心立方Cr相;经550℃时效2 h后,合金显微硬度达到峰值,合金中弥散析出相呈球状,通过衍射花样标定,析出相为体心立方Cr相和Cu4Zr相,且Cr相与Cu基体之间存在N-W位向关系。

关键词(KeyWords)： Cu-0.36Cr-0.03Zr合金;时效处理;析出相;晶体取向关系

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(50571035);; 长江学者和创新团队发展计划资助(IRT1234);; 河南省高校科技创新团队支持计划(2012IRTSTHN008)

作者(Author): 丁宗业,贾淑果,邓猛,宋克兴,刘平

DOI: 10.13289/j.issn.1009-6264.2014.02.009

参考文献(References)：

• [1]刘平,赵冬梅,田保红.高性能铜合金及其加工技术[M].北京:冶金工业出版社,2005.
• [2]Zhang L,Li Z,Lei Q,et al.Hot deformation behavior of Cu-8.0Ni-1.8Si-0.15Mg alloy[J].Materials Science and Engineering A,2011,528(3):1641-1647.
• [3]王俊峰,贾淑果,陈少华,等.热轧态Cu-Ni-Si-Mg合金的时效动力学[J].材料热处理学报,2012,33(7):33-36.WANG Jun-feng,JIA Shu-guo,CHEN Shao-hua,et al.Aging kinetics of Cu-Ni-Si-Mg alloy[J].Transactions of Materials and Heat Treatment,2012,33(7):33-36.
• [4]Jia S G,Ning X M,Liu P,et al.Aging hardening characteristics of Cu-Ag-Zr alloy[J].Metals and Materials International,2009,15(4):555-558.
• [5]贾淑果,刘平,任凤章,等.高强高导低溶质Cu-Ag-Cr合金时效析出特性的研究[J].材料热处理学报,2004,25(2):8-10.JIA Shu-guo,LIU Ping,REN Feng-zhang,et al.Study on the aging precipitation of the high-strength and high-conductivity dilute solute Cu-Ag-Cr alloy[J].Transactions of Materials and Heat Treatment,2004,25(2):8-10.
• [6]贾淑果,陈少华,李银华,等.CuNiSiP合金的时效和热变形行为[J].金属热处理,2009,34(11):52-56.JIA Shu-guo,CHEN Shao-hua,LI Yin-hua,et al.Aging and hot deformation behavior of CuNiSiP alloy[J].Heat Treatment of Metals,2009,34(11):52-56.
• [7]杨浩,陈江华,胡特,等.Cu-Cr-Zr合金时效析出相的研究[J].电子显微学报,2010,29(4):317-321.YANG Hao,CHEN Jiang-hua,HU Te,et al.A transmission electron microscopy study of hardening precipitates in CuCrZr alloys[J].Journal of Chinese Electron Microscopy Society,2010,29(4):317-321.
• [8]Su J H,Liu P,Li H J,et al.Phase transformation in Cu-Cr-Zr-Mg alloy[J].Materials Letters,2007,61(27):4963-4966.
• [9]Batra I S,Dey G K,Kulkami U D.Precipitation in a CuCrZr alloy[J].Materials Science and Engineering A,2002,356(1-2):32-36.
• [10]Tang N Y,Taplin D M R,Dunlop G L.Precipitation and aging in high-conductivity Cu-Cr alloys with additions of zirconium and magnesium[J].Material Science Technology,1985,1(4):270-275.
• [11]Zeng K J,Hamalainen M,Lilius K.Phase relationships in Cu-rich corner of the Cu-Cr-Zr phase diagram[J].Scripta Metallurgica Materialia,1995,32(12):2009-2014.
• [12]刘平,康布熙,曹兴国,等.快速凝固Cu-Cr合金时效析出的共格强化效应[J].金属学报,1999,35(6):561-564.LIU Ping,KANG Bu-xi,CAO Xing-guo,et al.Coherent strengthening of aging precipitation in rapidly solidified Cu-Cr alloy[J].Acta Metallurgica Sinica,1999,35(6):561-564.
• [13]Suzuki H G,Mihara K.Effect of Zr on aging characteristics and strength of Cu-Cr in-situ composite[J].Journal of the Japan Institute of Metals,1998,62(3):238-245.
• [14]Huang F X,Ma J S.Analysis of phases in a Cu-Cr-Zr alloy[J].Scripta Materialia,2003,48(1):97-102.
• [15]Batra I S.Microstructure and properties of a CuCrZr alloy[J].Journal of Nuclear Materials,2001,299(2):91-10.

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