摘要
采用有限元法分析了在球形压头和维氏压头压入试验中304不锈钢表面形成的Mo梯度改性层的接触应力分布,并与304不锈钢基体和同等厚度的均质Mo膜进行对比。结果表明,改性层和膜层在压入过程中均承担了大部分应力,对基材起到了良好的保护作用。梯度结构相对于Mo薄膜能明显减缓接触应力,显示出更好的抵抗接触损伤的能力。
The contact stress distributions of Mo gradient gradification layer formed on the 304 stainless steel under indentation test with sphere and Vickers indenters were analyzed by finite element method, which were compared with 304 stainless steel substrate and same thickness homogeneous Mo-film. The results show that the graded modified layers and Mo-film undertake amounts of contact stress during pressing, which can play a protection role in the substrate. Compared with Mo-film, the graded structure can reduce the contact stress significantly, which can show better resistances to contact damage.
作者
孔凡友
易宏
马华
秦林
KONG Fanyou;Yi Hong;MA Hua;QIN Lin(Surface Engineering Institute,Taiyuan University of Technology,Taiyuan 030024,China)
出处
《热加工工艺》
CSCD
北大核心
2018年第18期121-124,共4页
Hot Working Technology
基金
山西省留学回国人员科研经费资助项目(2013-030)
关键词
梯度改性层
接触应力分布
有限元
graded modified layer
contact stress distribution
finite element
