王文芳,吴皖燕,吴玉程

• 1:合肥工业大学材料学院
• 2:安徽省有色金属材料与加工工程实验室

摘要(Abstract)：

研究了机械合金化诱发AgCu20Ni2过饱和合金粉末的形成及粉末冶金方法制备AgCu20Ni2合金的过程,对获得的AgCu20Ni2合金的组织和物理性能关系进行了分析,探讨了制备工艺和冷压变形对合金综合性能的影响。结果表明:采用高能球磨30 h,可获得纳米晶的过饱和合金粉末;合金粉末制备的AgCu20Ni2合金由富Ag的基体α相和均匀分布的析出β相构成,析出相界面结构能有效阻碍基体中位错的运动,强化效果明显。合金断口的SEM、EDS分析表明,AgCu20Ni2合金的断裂类型为韧性断裂。

关键词(KeyWords)： 机械合金化;AgCu20Ni2;粉末冶金;显微组织;断裂

Abstract:

Keywords:

基金项目(Foundation): 合肥市应用技术研究与开发项目(200823025);; 合肥市科技计划项目(200754038)

作者(Author): 王文芳,吴皖燕,吴玉程

DOI: 10.13289/j.issn.1009-6264.2011.09.017

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