کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1499575 | 993313 | 2011 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A microstructure-based model of the deformation mechanisms and flow stress during elevated-temperature straining of a magnesium alloy
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A microstructure-based model of the deformation mechanisms and flow stress during elevated-temperature straining of a magnesium alloy A microstructure-based model of the deformation mechanisms and flow stress during elevated-temperature straining of a magnesium alloy](/preview/png/1499575.png)
چکیده انگلیسی
We show that the variation of flow stress with strain rate and grain size in a magnesium alloy deformed at a constant strain rate and 450 °C can be predicted by a crystal plasticity model that includes grain boundary sliding and diffusion. The model predicts the grain size dependence of the critical strain rate that will cause a transition in deformation mechanism from dislocation creep to grain boundary sliding, and yields estimates for grain boundary fluidity and diffusivity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Scripta Materialia - Volume 64, Issue 10, May 2011, Pages 931–934
Journal: Scripta Materialia - Volume 64, Issue 10, May 2011, Pages 931–934
نویسندگان
David E. Cipoletti, Allan F. Bower, Paul E. Krajewski,