于华,潘清华,李兆楠,林耀华,聂书才,杨豫川

• 1:河南科技大学材料科学与工程学院
• 2:河南省先进有色金属材料加工技术重点实验室

摘要(Abstract)：

以WC合金为电极,采用电火花沉积技术在35CrMo钢表面沉积WC合金强化涂层,考察了涂层的断面显微硬度,并通过金相显微镜、扫描电镜(SEM)、能谱(EDX)、X-射线衍射(XRD)等表征了强化涂层的微观结构。结果表明:涂层的表面显微硬度约为基体的2.5倍,涂层的耐磨性显著提高;涂层与基体的主要元素发生了相互扩散,所获涂层是由基体与WC合金电极发生反应的冶金结合层,涂层的主要成分是Fe7C3、Fe3W3C、Fe7C3、Fe7W6、Fe3W3C和Fe7W6。

关键词(KeyWords)： 电火花沉积;WC涂层;界面行为;机理

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(50774029);; 河南省杰出青年科学基金(074100510011);; 河南科技大学青年基金项目(2006QN049);; 洛阳市科技攻关项目

作者(Author): 于华,潘清华,李兆楠,林耀华,聂书才,杨豫川

DOI: 10.13289/j.issn.1009-6264.2010.10.024

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