李才巨,陶静梅,朱心昆,徐孟春,陈铁力

• 1:昆明理工大学材料科学与工程学院

摘要(Abstract)：

采用高能球磨机械合金化法制备了Au-20%Sn合金,分析了合金物相、组织和硬度随球磨时间的变化规律,探讨了合金塑性与合金组织及制备工艺的关系。结果表明:采用高能球磨机械合金化法可以制备Au-20%Sn合金;随球磨时间的增加,Au-20%Sn的合金化程度增加,组织中的金属间化合物逐渐增多,最终基本上为δ相和ζ′相;合金的硬度随球磨时间的延长逐渐升高,并在球磨60min后获得最高硬度104.2HV,然后开始下降;球磨后的合金粉末在190℃×2h的烧结过程中发生了不同程度的再结晶和晶粒长大,再结晶程度随球磨时间的延长而增加,导致烧结后合金硬度在球磨时间超过60min后反而下降。

关键词(KeyWords)： 机械合金化;高能球磨;金锡合金;钎料;金属间化合物

Abstract:

Keywords:

基金项目(Foundation): 云南省国际合作项目(2004GH09)

作者(Author): 李才巨,陶静梅,朱心昆,徐孟春,陈铁力

DOI: 10.13289/j.issn.1009-6264.2010.04.009

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