کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7988434 | 1515818 | 2018 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Modeling of the temperature-dependent ideal shear strength of solid single crystals
ترجمه فارسی عنوان
مدل سازی مقاومت برشی ایده آل متشکل از دما از کریستالهای جامد
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
چکیده انگلیسی
Knowledge of the ideal shear strength of solid single crystals at finite temperatures is of fundamental importance. It is mainly determined by the molecular dynamics simulations. However, thus obtained results are strongly dependent on the employed empirical potentials. In the present work, two theoretical models for the temperature-dependent ideal shear strength of single crystals are established based on the Frenkel's classical theory and the energy view. To test the established models, the ideal shear strengths of β-NiAl and γ-Ni3Al alloys are calculated from 0â¯K to the melting point and compared with the results reported in the literature. The study shows that both shear modulus and ideal shear strength firstly remain approximately constant and then decrease almost linearly as temperature changes from 0â¯K to melting point. However, the ideal shear strength has stronger temperature dependence than the shear modulus.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Intermetallics - Volume 93, February 2018, Pages 299-302
Journal: Intermetallics - Volume 93, February 2018, Pages 299-302
نویسندگان
Tianbao Cheng, Daining Fang, Yazheng Yang,