کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1577457 1514800 2012 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Strain rate sensitivity studies in an ultrafine-grained Al–30 wt.% Zn alloy using micro- and nanoindentation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Strain rate sensitivity studies in an ultrafine-grained Al–30 wt.% Zn alloy using micro- and nanoindentation
چکیده انگلیسی

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.


► The characteristics of plastic deformation of an ultrafine-grained (UFG) Al–30 wt.% Zn alloy investigated by depth-sensing micro- and nanoindentation.
► The effects of grain boundaries and the strain rate sensitivity.
► Close relationship between enhanced strain rate sensitivity and ductility.
► Enhanced diffusion along the Al/Al grain boundaries wetted by Zn-rich layers.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 543, 1 May 2012, Pages 117–120
نویسندگان
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