کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7951927 1513701 2018 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An intrinsic correlation between driving force and energy barrier upon grain boundary migration
ترجمه فارسی عنوان
یک رابطه ذاتی بین نیروی محرکه و مانع انرژی بر مهاجرت مرز دانه
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد شیمی مواد
چکیده انگلیسی
The migration of grain boundary (GB), which plays a key role in the microstructural evolution of polycrystalline materials, remains mysterious due to the unknown relationship between GB mobility associated with specific geometry and external conditions (e.g. temperature, stress, etc., hence the thermodynamic driving force). Combining the rate equation of GB migration with molecular dynamics simulations, an intrinsic correlation between driving force and energy barrier for the migration of various types of GBs (i.e. twist, symmetric tilt, asymmetric tilt, and mixed twist-tilt) is herein explored, showing the decrease of energy barrier with increasing thermodynamic driving force.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Science & Technology - Volume 34, Issue 8, August 2018, Pages 1359-1363
نویسندگان
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