摘要
以铁素体不锈钢E-brite为基体材料,采用电解共沉积法制备Co-Mn2O3复合镀层,并将电镀样品暴露在800℃的空气中不同时间(10 min、4、100 h),经热处理将镀层转变为尖晶石涂层。利用扫描电镜、能谱分析(SEM/EDS)和X射线衍射(XRD)对热转化层进行分析。结果表明:经过10 min热处理的Co-Mn2O3复合镀层中的Mn2O3颗粒并没有完全溶入氧化层,但经4、100 h热处理的Co-Mn2O3复合镀层完全转化为(Co,Mn)3O4尖晶石涂层,这对防止基体材料中Cr的挥发有明显阻碍作用。
The electrolytic deposition method was used for the preparation of Co-Mn2O3 composite plating layer on the surface of the ferritic stainless steel E-brite matrix.Then,the samples were exposed in air at 800℃in different time for 10 min,4 h and 100 h,respectively.After heat treatment,the composite plating layer transforms into spinel coating.The thermal transformation layers were analyzed by using scanning electron microscopy/energy spectrum analysis(SEM/EDS)and X-ray diffraction(XRD).The results show that Mn2O3 particles do not completely dissolve in the Co-Mn2O3 compound layer after 10 min heat treatment,and after 4 h and 100 h heat treatment,Co-Mn2O3 composite coating completely convertes into the spinel(Co,Mn)3O4 coating,which can effectively prevent the volatilization of Cr in the matrix.
作者
马张博
杨雯
张敏刚
于鸿莉
李晔珑
李永堂
MA Zhangbo;YANG Wen;ZHANG Mingang;YU Hongli;LI Yelong;LI Yongtang(Shanxi Key Laboratory of Metal Forming Theory and Technology,School of Materials Science and Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China)
出处
《热加工工艺》
北大核心
2019年第24期81-83,共3页
Hot Working Technology
基金
国家自然科学基金面上项目(51871158)
山西省应用基础研究计划资助(201801D121084).
