罗来马,刘少光,罗娟,姚继蓬,郦剑

• 1:浙江大学材料科学与工程系
• 2:合肥工业大学材料科学与工程学院
• 3:温州科得力新特材料有限公司

摘要(Abstract)：

用高速电弧喷涂技术和自行研发的FeMnCrAl/Cr3C2粉芯丝材,在20钢样品表面制备了FeMnCrAl/Cr3C2涂层,采用光学显微镜、场发射扫描电镜、能谱分析和X射线衍射等方法,对FeMnCrAl/Cr3C2涂层的显微组织和热腐蚀行为进行了研究,并与20钢做了对比试验研究。结果表明:FeMnCrAl/Cr3C2涂层主要由固溶相的凝片叠加组成,中间夹杂着氧化物相、未熔颗粒相和孔隙;FeMnCrAl/Cr3C2涂层抗热腐蚀性能明显优于20钢基体,热腐蚀增重约为20钢的1/3-1/4,涂层抗腐蚀性能提高的原因主要是:涂层热腐蚀后表面生成具有保护性的、致密的含Al、Cr氧化物和Cr与Fe的复合氧化物,阻碍了涂层进一步腐蚀。

关键词(KeyWords)： 高速电弧喷涂;FeMnCrAl/Cr3C2涂层;抗热腐蚀性能

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 罗来马,刘少光,罗娟,姚继蓬,郦剑

DOI: 10.13289/j.issn.1009-6264.2010.09.028

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