کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7956745 | 1513838 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Atomistic simulation of martensitic transformations in zirconium nanoclusters
ترجمه فارسی عنوان
شبیه سازی اتومیستی تحولات مارتنزیتی در نانوکیلرهای زیرورونیوم
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
چکیده انگلیسی
Molecular dynamics simulation has been applied to the study of martensitic transformations in nanoclusters of pure zirconium containing slightly in excess of two million atoms. Starting structures of both single crystal and polycrystalline samples were prepared in the bcc phase by solidification from the liquid. Continuous cooling simulations into the hcp αⲠwere conducted at various quench rates revealing a decrease in martensitic start temperature with increasing rate. The temperature dependence appears consistent with previously published models for heterogeneous nucleation. The phase transformation is found to initiate at the cluster surface in the single crystal (bcc) clusters, but starts at the grain boundaries in the polycrystals. The start temperature for the polycrystals is slightly higher than that for single crystal clusters quenched at the same rate.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computational Condensed Matter - Volume 13, December 2017, Pages 29-35
Journal: Computational Condensed Matter - Volume 13, December 2017, Pages 29-35
نویسندگان
Richard Whiting Smith,