کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1580584 1514832 2010 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Geometrical analysis of 3D dislocation dynamics simulations of FCC micro-pillar plasticity
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Geometrical analysis of 3D dislocation dynamics simulations of FCC micro-pillar plasticity
چکیده انگلیسی

A geometrical analysis of 3D dislocation dynamics simulations of FCC micro-pillar plasticity shows that the insertion of jogged dislocations before relaxation or enabling cross-slip during plastic flow are prerequisites for the formation of potentially strong natural pinning points and single arm dislocation sources. Absent these conditions, we argue that mobile dislocation starvation will occur naturally in the course of plastic flow and lead to a state in which plastic flow is controlled by the nucleation of dislocations, most likely at the free surfaces.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 527, Issues 7–8, 25 March 2010, Pages 1903–1910
نویسندگان
, ,