吴玉萍,林萍华,王泽华

• 1:河海大学材料科学与工程学院

摘要(Abstract)：

采用超音速火焰(HVOF)喷涂技术在1Cr18Ni9Ti不锈钢表面制备了Fe-Cr基涂层,用磁致伸缩汽蚀仪研究了喷涂层的汽蚀性,并与水利机械常用材料ZG06Cr13Ni5Mo马氏体不锈钢进行了对比。结果表明:涂层包含未熔或半熔的球形颗粒和少量孔隙,层与层之间结合紧密,层间无明显条带状组织。Fe-Cr涂层具有高的硬度(1099HV0.2),抗汽蚀性明显优于ZG06Cr13Ni5Mo马氏体不锈钢(285HV0.2)。两者的汽蚀形貌存在较大差异,ZG06Cr13Ni5Mo马氏体不锈钢的汽蚀坑圆滑,而Fe-Cr基涂层汽蚀坑形状极不规则,与涂层中的孔隙有某种对应关系。

关键词(KeyWords)： 超音速火焰(HVOF)喷涂;Fe-Cr基涂层;汽蚀;1Cr18Ni9Ti不锈钢

Abstract:

Keywords:

基金项目(Foundation): 江苏省自然基金项目(BK2007180)

作者(Author): 吴玉萍,林萍华,王泽华

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