Hits:
Affiliation of Author(s):材料科学工程学院
Teaching and Research Group:金属材料基础实验教学中心
Journal:Open Journal of Physical Chemistry
Funded by:国家自然科学基金项目
Key Words:Nanocrystalline, Segregation, Creep, Nanoindentation, Grain Growth, Annealing
Abstract: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.
Co-author:胡新明,刘向雷,王国勇
First Author:weisufeng
Indexed by:Journal paper
Volume:11
Page Number:1
ISSN No.:2162-1977
Translation or Not:no
Date of Publication:2021-08-03
