کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1448528 988676 2008 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Dislocation interaction with C in α-Fe: A comparison between atomic simulations and elasticity theory
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Dislocation interaction with C in α-Fe: A comparison between atomic simulations and elasticity theory
چکیده انگلیسی

The interaction of C atoms with a screw and an edge dislocation is modelled at an atomic scale using an empirical Fe–C interatomic potential based on the embedded atom method and molecular statics simulations. Results of atomic simulations are compared with predictions of elasticity theory. It is shown that a quantitative agreement can be obtained between both modelling techniques as long as anisotropic elastic calculations are performed and both the dilatation and the tetragonal distortion induced by the C interstitial are considered. Using isotropic elasticity allows the prediction of the main trends of the interaction, whereas considering only the interstitial dilatation will lead to a wrong interaction.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Materialia - Volume 56, Issue 14, August 2008, Pages 3450–3460
نویسندگان
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