王宏宇,赵玉凤,许晓静,沈清,吴志奎

• 1:江苏大学机械工程学院

摘要(Abstract)：

研究淬火-中温回火和等温淬火两种热处理工艺对65Mn钢表面渗硼层组织和性能的影响。结果表明:经该工艺热处理后,65Mn钢表面渗硼试样呈现出典型的表硬芯韧组织特征,其表面为高硬抗磨的硼化物,芯部为强韧的回火屈氏体或下贝氏体;同时,渗硼层物相由以FeB相为主转变为以Fe2B相为主,虽硬度、耐磨性有所下降但其脆性降低了1～2个等级;此外,等温淬火处理在降低热处理应力、保持表面硬度及耐磨性和改善芯部强韧性等方面均好于淬火-中温回火处理。

关键词(KeyWords)： 结构钢;渗硼处理;热处理;强韧化

Abstract:

Keywords:

基金项目(Foundation): 国家科技支撑计划资助项目(2011BAD20B00);; 江苏省产学研联合创新资金计划资助项目(BY2010130);; 江苏大学高级专业人才科研启动基金资助项目(11JDG126)

作者(Author): 王宏宇,赵玉凤,许晓静,沈清,吴志奎

DOI: 10.13289/j.issn.1009-6264.2012.12.027

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