王强松,黄国兴,娄花芬,米绪军,熊柏青

• 1:北京有色金属研究总院
• 2:中铝洛铜业有限公司

摘要(Abstract)：

借助于金相、XRD、SEM、TEM等研究手段,对应用在特殊环境下的QCr0.8合金组织性能进行了研究。结果表明:该合金通过挤压等加工工艺后,组织中存在大量的纳米晶和孪晶,而大量孪晶的出现也表明该合金具有低的层错能;该合金在(111)方向上存在加工织构;该合金软化温度高于600℃,抗拉强度在600℃下仍能达到室温条件下的50%;Cr在基体中以5～15 nm和0.2～0.5μm弥散分布在基体中,其中纳米析出相与基体保持共格或半格关系。

关键词(KeyWords)： 铜合金;抗拉强度;组织性能

Abstract:

Keywords:

基金项目(Foundation): 北京市科技项目(10231103)

作者(Author): 王强松,黄国兴,娄花芬,米绪军,熊柏青

DOI: 10.13289/j.issn.1009-6264.2012.05.024

参考文献(References)：

• [1]方正春.Cu-Cr高导率合金的熔铸技术[J].特种铸造及有色合金,1996(5):39-42.FANG Zheng-chun.Melting technique of Cu-Cr alloy with high conductivity[J].Special Casting&Nonferrous Alloys,1996(5):39-42.
• [2]崔建国,杨志懋,丁秉钧.微晶CuCr30真空断路器触头材料的研制[J].粉末冶金技术,1997,15(1):33-37.CUI Jian-guo,YANG Zhi-mao,DING Bing-jun.Investigation of contact materials for microcrystal CuCr30 vacuum breaker[J].Powder MetallurgyTechnology,1997,15(1):33-37.
• [3]马凤仓,倪风,杨涤心.Cu-Cr合金制备方法研究现状[J].材料开发与应用,2002,17(3):35-38.MANG Feng-cang,NI Feng,YANG Di-xin.The present situation of preparation methods of CuCr alloy materials[J].Development and Application ofMaterials,2002,17(3):35-38.
• [4]麻向军,王伟民.导电铜合金强化的研究现状[J].机械研究与应用,1998(1):48-49.MA Xiang-jun,WANG Wei-min.Current research on conductive copper alloy strengthening[J].Mechanical Research&Application,1998(1):48-49.
• [5]Anand M S,Agarwala R P.Diffusion of copper in iron[J].Appl Phys,1966,37,4248-4252.
• [6]王强松.原位纳米颗粒增强铸造铜合金的研究[D].北京科技大学,2010.
• [7]王世中,臧鑫士.电子显微基础[M].北京:北京航空学院出版社,1987(1):196-197.
• [8]黄孝瑛,侯耀永,李理.电子衍射分析原理与图谱[M].济南:山东科学技术出版社,2000:206.
• [9]Knights R W,Wilkes P.Precipitation of chromium in copper and copper-nickel base alloys[J].Metallurgical and Materials Transactions B,1973,4:2389-2393.
• [10]Komem Y,Rezek J.Precipitation at coherency loss in Cu-0.35 wt pct Cr[J],Metallurgical and Materials Transactions A,1975,6(3):549-551.
• [11]Fujii T,Mori T,Kato M.Crystallography and morphology of needle-likeα-Fe precipitate particles in a Cu matrix[J].Acta Materialia,1992,40:3413-3420.
• [12]Furuhara T,Wada K,Maki,T.Atomic structure of interphase boundary enclosing bcc precipitate formed in fcc matrix in a Ni-Cr alloy[J].Metallurgical and Materials Transactions A,1995,26:1971-1978.
• [13]Luo C P,Weatherly G C.The interphase boundary structure of precipitates in a Ni-Cr alloy[J].Philosophical Magazine A,1988,58:445-462.
• [14]Ardell A J.Precipitation hardening[J].Metallurgical Transactions A,1985,16:2131-2165.
• [15]Eshelby J D.The determination of the elastic field of an ellipsoidal inclusion,and related problems[J].Proceedings of the Royal Society of London,1957,241:376-396.
• [16]Tiedje N,Hansen P N,Pedersen A S.Modeling of primary and secondary dendrites in a Cu-6 wt Pct Sn alloy[J].Metallurgical and MaterialsTransactions A,1996,27(12):4085-4093.
• [17]Lee Jongsang,Jung J Y,Lee E S,et al.Microstructure and properties of titanium boride dispersed Cu alloys fabricated by spray forming[J].MaterialScience and Engineering A,2000,277(1-2):274-283.

文章评论(Comment)：