陈健,梁欢,刘雪飘

• 1:江苏科技大学先进焊接技术省级重点实验室

摘要(Abstract)：

采用真空感应熔炼技术浇铸CuNiCoBe合金,利用光学显微镜、硬度计、电导仪,研究固溶、冷变形和时效处理工艺对CuNiCoBe合金组织和性能的影响。结果表明,CuNiCoBe合金较为合适的固溶温度为960℃;时效前冷变形有利于加快时效进程、缩短时效时间;冷变形量越大,合金时效后的室温硬度越高,达到时效硬化峰值的时间越短,峰值后硬度下降的幅度越大;总体说来冷,预冷变形亦有利于提高合金时效后的电导率,提高幅度平均约为10%。经960℃保温1.5 h固溶处理+60%冷变形+490℃保温2.5 h时效处理后的CuNiCoBe合金的硬度可达377 HV30,比未冷变形时提高了124%。

关键词(KeyWords)： CuNiCoBe合金;冷变形;时效;硬度;电导率

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 陈健,梁欢,刘雪飘

DOI: 10.13289/j.issn.1009-6264.2010.10.019

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