کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1502875 993436 2008 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Dislocation-assisted grain growth in nanocrystalline copper under large deformation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Dislocation-assisted grain growth in nanocrystalline copper under large deformation
چکیده انگلیسی

Dislocation plasticity conventionally induces textures in polycrystalline metals after a large deformation. We used parallel molecular dynamics to simulate the plastic deformation of nanocrystalline copper to an isochoric stretch up to 100% logarithmic strain. We found that the movements of partial dislocations that dominate the deformation process do not lead to texture formation. The grain size distribution becomes extremely inhomogeneous. By observing the structural evolution, we demonstrate that grain growth assisted by partial dislocations suppresses the texture formation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Scripta Materialia - Volume 59, Issue 7, October 2008, Pages 792–795
نویسندگان
, ,