Fabrication of a gradient nano-micro-structured surface layer on bulk copper by means of a surface mechanical grinding treatment
Fabrication of a gradient nano-micro-structured surface layer on bulk copper by means of a surface mechanical grinding treatment
复制标题
表面机械研磨处理在块体铜上制备梯度纳米微结构表面层
DOI：
10.1016/j.scriptamat.2008.05.003
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发表时间：
2008-09-01
影响因子：
6
通讯作者：
Lu, K.
中科院分区：
文献类型：
--
作者：
Li, W. L.;Tao, N. R.;Lu, K.
采用一种新的表面纳米化技术--低温表面机械研磨处理，在纯铜块体表面制备了纳米-微米梯度结构。平均晶粒尺寸从最上表面的约22 nm变化到约200 μ m深的亚微米，对应于粗晶粒基质中硬度从2.1 GPa到1.1 GPa的梯度变化。(c)2008由Elsevier Ltd.代表Acta Materialia Inc.出版。
By using a novel surface nanocrystallization technique, surface mechanical grinding treatment at cryogenic temperatures, we synthesized a gradient nano-micro-structure in the surface layer of bulk pure copper. The average grain sizes vary from about 22 nm in the topmost surface to sub-micrometers at about 200 mu m deep, corresponding to a gradient change in hardness from 2.1 to 1.1 GPa in the coarse-grained matrix. (c) 2008 Published by Elsevier Ltd. on behalf of Acta Materialia Inc.