程晨,雷旻,代利,万明攀,曾玉金

• 1:贵州大学材料与冶金学院
• 2:贵州大学贵州省材料结构与强度重点实验室

摘要(Abstract)：

采用高能等离子束在GDL-1钢基体表面预涂覆302合金粉末进行合金化表面改性。分析合金化层的成分、组织结构、硬度和耐磨性。结果表明:单道扫描合金化层以铁基固溶体为基体,均匀分布Fe_3C、Cr_7C_3、W_2C、WC、VC、MoC和Mo_2C等细小弥散碳化物;由表及里组织分别为细密的等轴晶与树枝晶混合组织,沿散热方向的树枝晶,胞状晶,从熔池表层到中心,树枝晶组织越来越粗化;多道搭接合金化层组织为粗大的树枝晶。合金化层的硬度在700~850 HV0.1之间,GDL-1钢耐磨性得到明显改善。

关键词(KeyWords)： 合金化;耐磨性;302涂层;电子背散射衍射

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 程晨,雷旻,代利,万明攀,曾玉金

DOI: 10.13289/j.issn.1009-6264.2017-0388

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