对Cu-10％(质量分数)Ni合金进行表面机械研磨处理,采用X射线衍射仪、光学显微镜、显微硬度测试仪等对处理不同时间样品的组织及性能进行了分析.结果表明表面机械研磨处理后,Cu-10％(质量分数)Ni合金实现了表面纳米化.处理时间30min时,表面晶粒尺寸为42.92nm,随着处理时间的延长,晶粒逐渐细化,强烈变形层逐渐增厚.表面机械研磨90min时,样品表面附近平均晶粒尺寸达到最小约为31.03nm,平均应变为0.0828％.处理时间120min时,表面显微硬度达到228 MPa,是基体组织的1.52倍.
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