王力,孟倩,喇培清,魏福安,楚成刚,魏玉鹏,马付良,郭鑫,盛捷

• 1:兰州理工大学有色金属先进加工与再利用省部共建国家重点实验室
• 2:兰州交通大学材料科学与工程学院

摘要(Abstract)：

在铝热反应中分别用铜底材和玻璃底材制备了316L不锈钢,并对其组织和力学性能进行研究。结果表明:铜底材和玻璃底材上制备的铸态316L不锈钢材料以纳米晶为主,微米晶和非晶在纳米基体上非均匀分布,组织主要由γ相组成,其纳米晶平均晶粒尺寸分别为33.6 nm和37.4 nm,玻璃底材上的晶粒尺寸明显大于铜底材,但抗拉强度和伸长率均相差不大,玻璃底材上的屈服强度明显高于铜底材。经800℃,8 h退火后,铜底材和玻璃底材上的不锈钢的纳米晶平均晶粒尺寸分别为17.4 nm和33.3 nm,相比铸态的纳米晶平均晶粒尺寸有所减小,而且铜底材上的减小幅度明显大于玻璃底材。铜底材上的316L不锈钢的抗拉强度、屈服强度和伸长率均明显高于玻璃底材,抗拉强度达到640 MPa,伸长率达到22.6%。

关键词(KeyWords)： 铝热反应法;纳米/微米复相316L不锈钢;退火;微观组织;力学性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51164022)

作者(Author): 王力,孟倩,喇培清,魏福安,楚成刚,魏玉鹏,马付良,郭鑫,盛捷

DOI: 10.13289/j.issn.1009-6264.2016.s1.006

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