彭竹琴,卢金斌,吴玉萍,张照军

• 1:中原工学院材料与化学工程系
• 2:中原工学院材料与化学工程系
• 3:河海大学材料科学与工程学院
• 4:中原工学院材料与化学工程系 河南郑州450007

摘要(Abstract)：

利用常压弧光等离子体在铸铁表面熔覆Fe-Cr-Si-B合金粉末制备耐磨涂层,采用金相显微镜、扫描电镜、X射线衍射仪、显微硬度计对熔覆层的组织和性能进行了分析。结果表明,熔覆层组织主要由近似于六方形、U形、L形或H形的初生(Cr,Fe)7C3相及短杆状或小块状(Cr,Fe)7C3共晶碳化物、-α(Fe,Cr)和Fe3C组成;熔覆层与基体界面形成细小的共晶莱氏体组织,在界面处熔覆层与基体中的合金元素发生了相互扩散,形成具有冶金结合的涂层;熔覆层显微硬度可达600~1200HV0.2。

关键词(KeyWords)： 等离子熔覆;铸铁;组织;显微硬度

Abstract:

Keywords:

基金项目(Foundation): 江苏省自然基金项目(BK2004117)

作者(Author): 彭竹琴,卢金斌,吴玉萍,张照军

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