刘宁,徐潇敏,刘爱军,吴玉程

• 1:合肥工业大学材料科学与工程学院

摘要(Abstract)：

采用放电等离子体烧结法(SPS)制备了不同含量TiC颗粒的Ta-2.5W合金,利用光学显微镜、扫描电镜、显微硬度仪和拉伸试验等研究了TiC含量对Ta-2.5W合金组织和性能的影响。结果表明:添加TiC可以细化合金的晶粒尺寸,TiC添加量为0.3 mass%时,合金的晶粒尺寸最小,硬度和强度均达到最大值。分布在晶界的TiC对晶界起钉扎作用是细化合金晶粒并提高其性能的主要原因。

关键词(KeyWords)： Ta-2.5W合金;TiC颗粒;组织;力学性能

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 刘宁,徐潇敏,刘爱军,吴玉程

DOI: 10.13289/j.issn.1009-6264.2021-0333

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