潘振亚,陈讲彪,石昆,李金富

• 1:上海交通大学材料科学与工程学院金属基复合材料国家重点实验室

摘要(Abstract)：

对稀土微合金化Cu-0.81Cr-0.12Zr-0.05La-0.05Y合金的形变与热处理工艺进行了研究。结果表明,优化加工工艺为铸锭经1193 K温度均匀化退火60 min后热轧,然后于1223 K温度固溶处理60 min后快淬至室温进行应变为60%的冷变形处理,最后再于773 K温度时效60 min。经过这样处理的试样,具有良好的综合性能,其显微硬度和导电率分别达186 HV0.1和81%IACS。试样未经冷变形处理,显微硬度和导电率则分别为140 HV0.1和80%IACS,相比之下,时效前对试样施以20%~80%应变的冷变形,可明显提高合金力学性能达20 HV0.1以上。

关键词(KeyWords)： 铜合金;变形;热处理;性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51227001);; 国家重点基础研究发展计划(2011CB610405)

作者(Author): 潘振亚,陈讲彪,石昆,李金富

DOI: 10.13289/j.issn.1009-6264.2015.12.005

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