In situ observation of stress induced grain boundary migration in nanocrystalline gold

Wang, Lihua, Xin, Tianjiao, Kong, Deli, Shu, Xinyu, Chen, Yanhui , Zhou, Hao, Teng, Jiao, Zhang, Ze, Zou, Jin and Han, Xiaodong (2017) In situ observation of stress induced grain boundary migration in nanocrystalline gold. Scripta Materialia, 134 95-99. doi:10.1016/j.scriptamat.2017.03.003


Author Wang, Lihua
Xin, Tianjiao
Kong, Deli
Shu, Xinyu
Chen, Yanhui
Zhou, Hao
Teng, Jiao
Zhang, Ze
Zou, Jin
Han, Xiaodong
Title In situ observation of stress induced grain boundary migration in nanocrystalline gold
Formatted title
In situ observation of stress induced grain boundary migration in nanocrystalline gold
Journal name Scripta Materialia   Check publisher's open access policy
ISSN 1359-6462
1872-8456
Publication date 2017-06-01
Sub-type Article (original research)
DOI 10.1016/j.scriptamat.2017.03.003
Open Access Status Not yet assessed
Volume 134
Start page 95
End page 99
Total pages 5
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon Press
Collection year 2018
Language eng
Formatted abstract
In this study, the plastic behaviors of nanocrystalline Au with an average grain size of 18 nm were investigated in situ using a home-made tensile device in a transmission electron microscope. We provide the direct experimental results revealed the process of grain boundary migration. The results show that dislocation behaviors are prevalent for large grains. However, for grain sizes below ~ 15 nm, grain boundary migration occurs frequently. The results of our statistical analyses show that grain boundary migration occurs more frequently than grain boundary sliding and rotation in nanocrystalline Au.
Keyword Grain boundary migration
In situ
Nanocrystalline metal
Plastic deformation
Transmission electron microscopy (TEM)
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
HERDC Pre-Audit
Centre for Microscopy and Microanalysis Publications
 
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