Title of article
Strain rate sensitivity studies in an ultrafine-grained Al–30 wt.% Zn alloy using micro- and nanoindentation
Author/Authors
Chinh، نويسنده , , Nguyen Q. and Csan?di، نويسنده , , Tam?s and Gy?ri، نويسنده , , Tivadar and Valiev، نويسنده , , Ruslan Z. and Straumal، نويسنده , , Boris B. and Kawasaki، نويسنده , , Megumi and Langdon، نويسنده , , Terence G.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2012
Pages
4
From page
117
To page
120
Abstract
The characteristics of plastic deformation of an ultrafine-grained (UFG) Al–30 wt.% Zn alloy were investigated using depth-sensing micro- and nanoindentation. Emphasis was placed on the effects of grain boundaries and the unusually high strain rate sensitivity. It is shown that there is a close relationship between enhanced strain rate sensitivity and ductility in this UFG material and this is associated with grain boundary sliding and enhanced diffusion along the Al/Al grain boundaries which appear to be wetted by Zn-rich layers.
Keywords
Micro and nanoindentation , Wetted boundaries , grain boundary sliding , Ultrafine-grained materials , strain rate sensitivity
Journal title
MATERIALS SCIENCE & ENGINEERING: A
Serial Year
2012
Journal title
MATERIALS SCIENCE & ENGINEERING: A
Record number
2170420
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