马建国,叶劲,尤显卿,刘宝

• 1:淮南师范学院
• 2:合肥工业大学材料科学与工程学院

摘要(Abstract)：

采用离心铸造工艺制备了以废弃的轴承钢GCr15为基体,WC颗粒为硬质相的WC/钢复合材料。用金相观察和X射线衍射等分析方法,对该材料的显微组织进行了研究。结果表明:离心铸造WC/钢复合材料的显微组织是由莱氏体(P+Fe3CⅡ(共晶))、一次渗碳体(Fe3CⅠ)、二次渗碳体(Fe3CⅡ)、合金渗碳体((Fe,M)3C)等碳化物及粒状珠光体组成,且其中有大量细小的WC、W2C、再结晶W-Fe-C颗粒以及M6C、M7C3、M23C6等碳化物颗粒析出;碳化物的形态较多,主要有网状、鱼骨状、树枝状和条块状。

关键词(KeyWords)： 离心铸造;WC/钢复合材料;显微组织;碳化物;WC颗粒

Abstract:

Keywords:

基金项目(Foundation): 安徽省教育厅自然科学基金2006年重点资助项目(2006KG083A)

作者(Author): 马建国,叶劲,尤显卿,刘宝

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