کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9795691 | 1514932 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The significance of grain boundary sliding in the superplastic Zn-22% Al alloy after processing by ECAP
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Specimens of the superplastic Zn-22% Al eutectoid alloy were processed by equal-channel angular pressing (ECAP) through a total of eight passes at 473Â K. Tensile specimens were cut from the as-pressed billets and tested at two different strain rates at 473Â K under conditions where there is superplastic flow. Marker lines were placed on the polished surfaces of the specimens prior to testing and these lines were used to take measurements of the grain boundary sliding offsets at elongations of â¼30%. The measurements are used to estimate the contribution of sliding to the total strain and they show that grain boundary sliding is the dominant deformation mechanism under these conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volumes 410â411, 25 November 2005, Pages 447-450
Journal: Materials Science and Engineering: A - Volumes 410â411, 25 November 2005, Pages 447-450
نویسندگان
Praveen Kumar, Cheng Xu, Terence G. Langdon,