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高速电弧喷涂FeAlCrNi/Cr3C2复合涂层的腐蚀性能研究
引用本文:徐维普,徐滨士,罗晓明,张亚余,葛雷,张伟.高速电弧喷涂FeAlCrNi/Cr3C2复合涂层的腐蚀性能研究[J].金属热处理,2005,30(12):51-54.
作者姓名:徐维普  徐滨士  罗晓明  张亚余  葛雷  张伟
作者单位:1. 上海特种设备监督检验技术研究院,上海,200062;装备再制造技术国防科技重点实验室,北京,100072
2. 装备再制造技术国防科技重点实验室,北京,100072
3. 上海特种设备监督检验技术研究院,上海,200062
基金项目:国家自然科学基金项目(50235030,50005024)
摘    要:采用涂盐热腐蚀法研究了高速电弧喷涂(HVAS)FeAlCrNi/Cr3C2复合涂层的腐蚀特性,并用SEM、TEM、X射线衍射等手段分析了涂层的组织与性能、腐蚀表面和截面的形貌与成分。结果表明,复合涂层具有典型的层状结构和较高的力学性能;随着热腐蚀时间的增加,涂层的腐蚀速率呈现抛物线变化;随着热腐蚀温度升高,涂层的腐蚀增重增加较缓慢;腐蚀后涂层表面生成了氧化物和硫化物,其腐蚀机理为内氧化。

关 键 词:高速电弧喷涂  热盐腐蚀  FeAlCrNi/Cr3C2复合涂层
文章编号:0254-6051(2005)12-0051-04
收稿时间:2005-07-12
修稿时间:2005-07-12

Corrosion Properties of High Velocity Arc Sprayed FeAlCrNi/Cr3C2 Composite Coating
XU Wei-pu,XU Bin-shi,LUO Xiao-ming,ZHANG Ya-yu,GE Lei,ZHANG Wei.Corrosion Properties of High Velocity Arc Sprayed FeAlCrNi/Cr3C2 Composite Coating[J].Heat Treatment of Metals,2005,30(12):51-54.
Authors:XU Wei-pu  XU Bin-shi  LUO Xiao-ming  ZHANG Ya-yu  GE Lei  ZHANG Wei
Affiliation:1. Shanghai Institute of Special Equipment Inspection and Technical Station,Shanghai 200062, China ; 2. National Key Laboratory for Remanufacturing, Beijing 100072,China
Abstract:Hot salt corrosion method was used to analysis the corrosion properties of high velocity arc sprayed(HVAS) FeAlCrNi/Cr_3C_2 composite coatings,corrosion surface and cross sectional images and composites of coatings were analyzed by SEM,TEM and XRD.The results show that the coatings have typical layer structures and relatively good mechanical properties.The corrosion rates show the parabola changes with the increase of corrosion time;and corrosion rate increases slightly with increasing temperature.There are oxides and sulfides on the corrosion surface;the corrosion resistance mechanism is inner-oxidation.
Keywords:high velocity arc spraying(HVAS)  hot salt corrosion  FeAlCrNi/Cr_3C_2 composite coating
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