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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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表面机械研磨处理的纯铜拉伸形变机制
Keywords: 金属材料,表面机械研磨处理,变形机制,纯铜
Abstract:
？采用扫描电镜电子通道衬度技术(sem-ecc)研究了表面机械研磨处理(smat)铜表面在室温拉伸的形变特征.结果表明:剪切带是纳米晶层、亚微晶层以及由位错胞组成的过渡层的共同形变特征,在不同的结构表层,剪切带的形貌略有差别.纳米晶层和亚微晶层内的剪切带主要为沿平面界面剪切滑动的结果,而过渡层的形变主要是以smat处理前的初始晶粒为单元发生的,剪切带的形成基本符合晶体学规律.
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