贺定勇,许静,马然,蒋建敏,王智慧

• 1:北京工业大学材料科学与工程学院
• 2:北京工业大学材料科学与工程学院
• 3:北京工业大学材料科学与工程学院
• 4:北京工业大学材料科学与工程学院

摘要(Abstract)：

采用高频感应熔覆方法在Q235低碳钢基体上制备了不同含量的WC增强Ni60A合金复合涂层。利用SEM和XRD分析了涂层的显微组织和相结构,并进行了耐磨性试验。结果表明,复合涂层中主要由WC、W2C、Cr7C3、Cr23C6、Cr2B、Ni2B、Ni3Si及Ni3Fe等相组成,并与基体实现了冶金结合。在相同试验条件下,涂层的硬度和耐磨性随WC含量的增加而提高,加入WC涂层的相对耐磨性为Ni60A涂层的2~6倍,当WC加入量为50%时涂层的耐磨性最好,为Ni60A涂层的6.5倍。涂层的磨损机制主要为轻微的塑性切削和硬质相的脆性剥落。

关键词(KeyWords)： 高频感应熔覆;碳化钨;Ni基合金;复合涂层

Abstract:

Keywords:

基金项目(Foundation): 北京市属市管高等学校人才强教计划资助项目

作者(Author): 贺定勇,许静,马然,蒋建敏,王智慧

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