کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1502415 993419 2006 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Increased strain rate sensitivity due to stress-coupled grain growth in nanocrystalline Al
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Increased strain rate sensitivity due to stress-coupled grain growth in nanocrystalline Al
چکیده انگلیسی

A combined experimental/simulation approach has been used to characterize the underlying deformation mechanisms associated with stress-assisted grain growth in nanocrystalline Al. Strain rate sensitivity experiments on freestanding submicron thin films undergoing stress-assisted grain boundary migration have uncovered rate sensitivities up to two orders of magnitude larger than previously reported for microcrystalline Al. Molecular dynamics simulations have been used to illustrate that these high strain rate sensitivities coincide with those associated with grain boundary processes such as migration, sliding, and dislocation nucleation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Scripta Materialia - Volume 55, Issue 7, October 2006, Pages 649–652
نویسندگان
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