万小军,田延豹,林建国

• 1:湖南城市学院物理与电信工程系
• 2:湘潭大学材料与光电物理学院

摘要(Abstract)：

研究了(Cu50Zr50)92Al8非晶合金在过冷液相区中,经过牛顿流变和非牛顿流变后的等温晶化行为及其对该合金力学性能的影响。结果表明,牛顿型流变对(Cu50Zr50)92Al8非晶合金的结构没有明显的影响;而非牛顿流变对该非晶的显微结构及其等温晶化行为有显著影响:非牛顿流变促进了(Cu50Zr50)92Al8非晶合金的晶化,其主要晶化相为体心立方结构的CuZr相(B2相)和CuZr马氏体相;经非牛顿流变及真空热处理试样,在室温压缩过程中,应力诱发了部分B2相的马氏体相变,从而使其在室温下表现出超弹性,当预塑性应变量为8%时,其总可回复应变为5%左右。

关键词(KeyWords)： Cu基非晶合金;非牛顿流变;等温晶化;力学性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(10972190);; 湖南省自然科学基金资助项目(09JJ0386)

作者(Author): 万小军,田延豹,林建国

DOI: 10.13289/j.issn.1009-6264.2012.08.021

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