摘要
以目前广泛采用的锡青铜+硬铬复合镀层为研究对象,采用有限元法,在局部细观视域下研究在立柱工况条件下的复合镀层应力分布形式和影响因素。研究结果表明,在复合镀层中,增大锡青铜层的弹性模量能显著降低镀层界面的应力差以及锡青铜镀层的应力水平,从而减缓了镀层脱落的风险、提高了镀层的抗腐蚀能力。锡青铜层和铬层的厚度均对镀层应力的影响较小。
Taking the tin bronze+hard chromium composite coating which is widely used at present as the research object,and the finite element method was used to study the stress distribution form and influencing factors of the composite coating under the condition of the column under the local microscopic field of view. The results show that in the composite coating,increasing the elastic modulus of the tinbronze layer can significantly reduce the stress difference of the coating interface and the stress level of the tinbronze coating,thereby reducing the risk of coating shedding and improving the corrosion resistance of the coating. The thickness of the tin bronze layer and the chromium layer have little effect on the stress of the coating.
作者
范俊锴
谢恒立
刘帅
Fan Junkai;Xie Hengli;Liu Shuai(Henan Polytechnic University,Jiaozuo 454000,China)
出处
《煤矿机械》
2021年第1期86-88,共3页
Coal Mine Machinery
基金
国家自然科学基金项目(51405136)
河南省高等学校重点科研项目计划(19A460003)。
关键词
液压支架
立柱
复合镀层
应力
有限元法
hydraulic support
column
composite coating
stress
finite element method
