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所属单位：材料科学工程学院

教研室：金属材料基础实验教学中心

发表刊物：Open Journal of Physical Chemistry

项目来源：国家自然科学基金项目

关键字：Nanocrystalline, Segregation, Creep, Nanoindentation, Grain Growth, Annealing

摘要：Nanocrystalline Cu-Ta alloy films were deposited on glass slides by magnetron sputtering. Microstructure characterization proved that most of the tantalum atoms are segregated in the grain boundaries. Nanoindentation creep measurements were performed on it to uncover the stability mechanism of grain boundary segregation on nanocrystalline materials. It is found that segregation can effectively slow down the creep strain rate and the grain boundary activities. The suppressed grain boundary activities endow the alloy with a stable microstructure during plastic deformation and annealing.

合写作者：胡新明,刘向雷,王国勇

第一作者：魏素凤

论文类型：期刊论文

卷号：11

页面范围：1

ISSN号：2162-1977

是否译文：否

发表时间：2021-08-03