کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7979082 | 1514718 | 2015 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Multi-component solid solution and cluster hardening of Al-Mn-Si alloys
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Tensile tests on Al-Mn-Si ternary alloys show that a small amount of Si increases significantly the strength compared to Al-Mn binary alloys with the same concentration of Mn. This cannot be explained by classical theories for multi-element substitutional solid solution hardening under the assumption of no interaction between different alloying elements. A new simplified cluster strengthening model which addresses both the chemical and size misfit effects of atom dimers is proposed this work. The binding energies and misfit of dimers were estimated by first principles atomistic simulations. The prediction results of the model are reasonably consistent with the experimental results. It shows that the main strengthening contribution is due to the misfit of dimers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 625, 11 February 2015, Pages 153-157
Journal: Materials Science and Engineering: A - Volume 625, 11 February 2015, Pages 153-157
نویسندگان
Qinglong Zhao, Bjørn Holmedal, Yanjun Li, Espen Sagvolden, Ole Martin Løvvik,