杨文豪,周延军,宋克兴,杨冉,杨少丹,郁炎,陈纪东,周菲,江浩,刘东东,姜凯旋,黄宽

• 1:河南科技大学材料科学与工程学院
• 2:河南省科学院材料研究所
• 3:河南科技大学医学技术与工程学院
• 4:郑州大学材料科学与工程学院

摘要(Abstract)：

对比了Cu-15Ni-8Sn合金铸态、均匀化退火态(850℃×8 h)、锻造态、固溶态(840℃×1 h)和时效态(400℃×6 h)的硬度、强度和伸长率变化规律，分析了不同工艺状态下合金的显微组织和断口形貌。结果表明：铸态合金的组织为发达的树枝晶；经均匀化退火后，枝晶组织消失，层片状组织完全溶于铜基体；均匀化退火态合金经锻造后，晶粒尺寸明显减小，平均晶粒尺寸从58.78μm减小到4.22μm,抗拉强度由395.39 MPa提高到659.50 MPa,细晶强化为主要强化机制；固溶态合金由于溶质原子的充分固溶，伸长率大幅提升到46.7%;进一步经时效处理后，抗拉强度提高到802.50 MPa。

关键词(KeyWords)： Cu-15Ni-8Sn合金;制备工艺;晶粒特征;力学性能

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划(2021YFB3700700);; 国家自然科学基金(52173297,52071133);; 中原学者工作站资助项目(224400510025);; 河南省科学院科研开发专项(220910009)

作者(Author): 杨文豪,周延军,宋克兴,杨冉,杨少丹,郁炎,陈纪东,周菲,江浩,刘东东,姜凯旋,黄宽

DOI: 10.13289/j.issn.1009-6264.2023-0362

参考文献(References)：

• [1] 姜业欣，娄花芬，解浩峰，等.先进铜合金材料发展现状与展望[J].中国工程科学，2020,22(5):84-92.JIANG Ye-xin,LOU Hua-fen,XIE Hao-feng,et al.Development status and prospect of advanced copper alloy materials[J].China Engineering Science,2020,22(5):84-92.
• [2] Guo L,Zuo P,Zhang Z,et al.A review of Cu-Ni-Sn alloys:Processing,microstructure,properties,and developing trends[J].Materials,2023,16(1):444.
• [3] 祁红璋，安建军，严彪.Cu-15Ni-8Sn 合金的开发与应用现状[J].金属功能材料，2009,16(4):57-60.QI Hong-zhang,AN Jian-jun,YAN Biao.Current applications and development of Cu-15Ni-8Sn alloy[J].Metallic Functional Materials,2009,16(4):57-60.
• [4] 郑史烈，吴年强，曾跃武，等.高弹性导电合金 Cu-Ni-Sn 的研究现状[J].材料科学与工程，1997,15(3):61-65.ZHENG Shi-lie,WU Nian-qiang,ZENG Yue-wu,et al.High elastic Cu-Ni-Sn alloy for electronics application[J].Materials Science and Engineering,1997,15(3):61-65.
• [5] 刘宇宁，王云鹏，祝儒飞，等.耐磨铜合金的研究现状与发展趋势[J].机械工程材料，2021,45(1):1-7.LIU Yu-ning,WANG Yun-peng,ZHU Ru-fei,et al.Research status and development trend of wear-resistant copper alloy[J].Materials for Mechanical Engineering,2021,45(1):1-7.
• [6] 肖翔鹏，黄国杰，程磊，等.固溶时效工艺对Cu-Ni-Si合金组织和性能的影响[J].稀有金属，2011,35(5):673-678.XIAO Xiang-peng,HUANG Guo-jie,CHENG Lei,et al.Effect of solution and aging technique on microstructure and properties of Cu-Ni-Si alloy[J].Chinese Journal of Rare Metals,2011,35(5):673-678.
• [7] 周允红，周晓龙，曹建春，等.时效对铸造Cu-15Ni-8Sn合金组织与性能的影响[J].金属热处理，2014,39(8):96-100.ZHOU Yun-hong,ZHOU Xiao-long,CAO Jian-chun,et al.Effect of aging process on microstructure and properties of Cu-15Ni-8Sn cast alloy[J].Heat Treatment of Metals,2014,39(8):96-100.
• [8] 刘施峰，汪明朴，李周，等.真空熔铸法和快速凝固法制备的Cu-15Ni-8Sn-XSi合金的组织研究[J].矿冶工程，2005(3):73-75.LIU Shi-feng,WANG Ming-pu,LI Zhou,et al.A study on cast structure of Cu-15Ni-8Sn-XSi alloys prepared by vacuum melting and rapid solidification[J].Mining and Metallurgical Engineering,2005(3):73-75.
• [9] 刘洋.高弹性Cu-15Ni-8Sn合金的制备工艺研究[D].北京：北京有色金属研究总院，2013.LIU Yang.Preparation technology of Cu-15Ni-8Sn alloy with high elasticity[D].Beijing:General Research Institute for Nonferrous Metals,2013.
• [10] Zhang J,Guo Z,Jie J,et al.Evolution behavior of γ-D03 phase in Cu-15Ni-8Sn alloy and the corresponding effects on alloy property[J].Journal of Alloys and Compounds,2022,897:162736.
• [11] 周隐玉，李伟，王飞，等.真空熔炼、锻造和热处理对Cu15Ni8Sn合金组织和性能的影响[J].热加工工艺，2022,51(14):135-139.ZHOU Yin-yu,LI Wei,WANG Fei,et al.Effects of vacuum melting,forging and heat treatment on microstructure and properites of Cu15Ni8Sn alloy[J].Hot Working Technology,2022,51(14):135-139.
• [12] 赵超.高强韧Cu-15Ni-8Sn 合金的制备及相关基础研究[D].广州：华南理工大学，2020.ZHAO Chao.Preparation and fundamental research of the Cu-15Ni-8Sn alloy with high strength and ductility[D].Guangzhou:South China University of Technology,2020.
• [13] 罗伟，甘雪萍，张县委，等.粉末冶金Cu-15Ni-8Sn合金时效组织的演变行为[J].粉末冶金材料科学与工程，2016,21(5):809-816.LUO Wei,GAN Xue-ping,ZHANG Xian-wei,et al.Microstructure evolution of powder metallurgy Cu-15Ni-8Sn alloy at aging procedure[J].Materials Science and Engineering of Powder Metallurgy,2016,21(5):809-816.
• [14] 张少宗，江伯鸿，丁文江.铸造Cu-15Ni-8Sn合金的组织和力学性能[J].特种铸造及有色合金，2006,26(1):62-64.ZHANG Shao-zong,JIANG Bo-hong,DING Wen-jiang,et al.Microstructure and mechanical properties of as-cast Cu-15Ni-8Sn alloy[J].Special Casting & Nonferrous Alloys,2006,26(1):62-64.
• [15] 王云鹏，胡嘉玮，许小云，等.多向锻造对铝合金组织与性能影响的研究进展[J].材料导报，2019,33(13):2266-2271.WANG Yun-peng,HU Jia-wei,XU Xiao-yun,et al.Research progress of effect of multi-directional forging on microstructure and properties of aluminum alloys[J].Materials Reports,2019,33(13):2266-2271.
• [16] 罗保民.Al、Si 对低锡 Cu-Ni-Sn 合金微观组织和力学性能的影响[D].广州：华南理工大学，2019.LUO Bao-min.Effect of Al and Si on microstructure and mechanical properties of Cu-Ni-Sn alloy with low Sn content[D].Guangzhou:South China University of Technology,2019.
• [17] 刘宇轩.热处理工艺对Cu-15Ni-8Sn合金力学性能和摩擦磨损性能的影响[D].广州：华南理工大学，2015.LIU Yu-xuan.Effects of heat treatment on mechanical properties and wear behavior of Cu-15Ni-8Sn alloy[D].Guangzhou:South China University of Technology,2015.
• [18] 胡赓祥，蔡珣，戎咏华.材料科学基础[M].上海：上海交通大学出版社，2010.HU Geng-xiang,CAI Xun,RONG Yong-hua.Fundamentals of Materials Science[M].Shanghai:Shanghai Jiao Tong University Press,2010.
• [19] 王银，王悦婷，李瑞迪，等.选区激光熔化金属材料中的霍尔-佩奇关系[J].中南大学学报：英文版，2021,28(4):1043-1057.WANG Yin,WANG Yue-ting,LI Rui-di,et al.Hall-Petch relationship in selective laser melting additively manufactured metals:using grain or cell size?[J].Journal of Central South University,2021,28(4):1043-1057.
• [20] 王俊，司乃潮，王正军，等.锻造热处理工艺对Al-7Si-1.6Cu合金组织和力学性能的影响[J].材料导报，2018,31(4):70-74.WANG Jun,SI Nai-chao,WANG Zheng-jun,et al.Effects of forging and heat treatment processing on structure and mechanical properties of Al-7Si-1.6Cu alloy[J].Materials Review,2018,31(4):70-74.
• [21] 李岳桥.热处理工艺对铜镍锡合金力学性能和微观组织的影响[D].太原：中北大学，2021.LI Yue-qiao.Effect of heat treatment process on mechanical properties and microstructure of Cu-Ni-Sn alloy[D].Taiyuan:North University of China,2021.
• [22] Zhang G,Liu S,Chen C,et al.Effect of heat treatment on microstructure and mechanical properties of a selective laser melted Cu-15Ni-8Sn alloy[J].Materials Science and Engineering A,2019,763:138132.
• [23] 王艳辉，汪明朴，洪斌.Cu-15Ni-8Sn合金的调幅相结构[J].功能材料，2004(z1):3405-3408.WANG Yan-hui,WANG Ming-pu,HONG Bin.The microstructures of spinodal phases in Cu-15Ni-8Sn alloy[J].Journal of Functional Materials,2004(z1):3405-3408.
• [24] 史海生，吴杏芳，章靖国，等.喷射成形Cu-15Ni-8Sn合金的相组织及时效硬化[J].材料研究学报，1999,13(6):654-658.SHI Hai-sheng,WU Xing-fang,ZHANG Jing-guo,et al.Microstructure and age hardening of Cu-15Ni-8Sn alloy prepared by spray forming[J].Chinese Journal of Materials Research,1999,13(6):654-658.
• [25] 王巽.热处理工艺对Cu-15Ni-8Sn(-0.3Si-0.1Ti)合金微观组织与力学性能的影响[D].广州：华南理工大学，2017.WANG Xun.Effect of heat treatment on microstructure and mechanical properties of Cu-15Ni-8Sn(-0.3Si-0.1Ti) alloy[D].Guangzhou:South China University of Technology,2017.
• [26] Zhou Y,Song K,Xing J,et al.Mechanical properties and fracture behavior of Cu-Co-Be alloy after plastic deformation and heat treatment[J].Journal of Iron and Steel Research International,2016,23(9):933-939.

文章评论(Comment)：