کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1560884 | 1513928 | 2014 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Molecular Dynamics virtual testing of thermally aged Fe-Cu microstructures obtained from multiscale simulations
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Molecular Dynamics virtual testing of thermally aged Fe-Cu microstructures obtained from multiscale simulations Molecular Dynamics virtual testing of thermally aged Fe-Cu microstructures obtained from multiscale simulations](/preview/png/1560884.png)
چکیده انگلیسی
Virtual nano-tensile tests using Molecular Dynamics (MD) simulations are performed in order to predict the change in mechanical strength of Cu-alloyed α-Fe with thermal ageing. A novel sequential multiscale approach is adopted to simulate the microstructure evolution during ageing. In this approach, kinetic Monte-Carlo simulations are used to capture nucleation, growth and early stages of Cu particle coarsening whereas phase-field simulations capture further particle coarsening yielding particle mean radii of above 3 nm in feasible computation times. The MD results show the correctness of this multiscale approach by predicting a continuous trend in structure-property correlation. The yield strengths of the samples are found to decrease with ongoing thermal ageing due to the lack of a priori existing dislocations in the material and the enhanced dislocation nucleation at Fe-Cu interfaces.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computational Materials Science - Volume 81, January 2014, Pages 466-470
Journal: Computational Materials Science - Volume 81, January 2014, Pages 466-470
نویسندگان
David Molnar, Peter Binkele, Alejandro Mora, Rajdip Mukherjee, Britta Nestler, Siegfried Schmauder,