کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1501296 | 993377 | 2008 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Molecular dynamics simulations of the interactions between screw dislocations and self-interstitial clusters in body-centered cubic Fe
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Molecular dynamics simulations of the interactions between screw dislocations and self-interstitial clusters in body-centered cubic Fe Molecular dynamics simulations of the interactions between screw dislocations and self-interstitial clusters in body-centered cubic Fe](/preview/png/1501296.png)
چکیده انگلیسی
Molecular dynamics simulations were performed to elucidate the interactions between screw dislocations and self-interstitial atom (SIA) defects in body-centered cubic Fe, using an embedded atom method potential fitted to ab initio forces. Two interaction mechanisms were identified: the junction mechanism, in which the original 1/2〈1 1 1〉 SIA loop was transformed into a 〈1 0 0〉 loop after the interaction, and the helical dislocation mechanism. The strengthening factor due to the interaction was estimated to be in the 0.4–0.6 range, in good agreement with experiments.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Scripta Materialia - Volume 59, Issue 1, July 2008, Pages 51–54
Journal: Scripta Materialia - Volume 59, Issue 1, July 2008, Pages 51–54
نویسندگان
X.-Y. Liu, S.B. Biner,