کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1638261 | 1517018 | 2010 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Special nanostructures in Al-Mg alloys subjected to high pressure torsion
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Special nanostructures in Al-Mg alloys subjected to high pressure torsion Special nanostructures in Al-Mg alloys subjected to high pressure torsion](/preview/png/1638261.png)
چکیده انگلیسی
Deformation twins and stacking faults were observed in nanostructure Al-Mg alloys subjected to high pressure torsion. These observations are surprising because deformation twinnings have never been observed in their coarse-grained counterparts under normal conditions. Experimental evidences are introduced on non-equilibrium grain boundaries, deformation twinnings and partial dislocation emissions from grain boundaries. Some of these features can be explained by the results reported from molecular-dynamics simulations of pure FCC metals. Special emphasis is laid on the recent observations of high density hexagonal and rhombic shaped nanostructures with an average size of 3 nm in the Al-Mg alloys processed by high pressure torsion. A possible formation process of these nanostructures is proposed based on molecular-dynamics simulations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transactions of Nonferrous Metals Society of China - Volume 20, Issue 11, November 2010, Pages 2051-2056
Journal: Transactions of Nonferrous Metals Society of China - Volume 20, Issue 11, November 2010, Pages 2051-2056
نویسندگان
Man-ping LIU, Hans J. ROVEN, Xin-tao LIU, Maxim MURASHKIN, Ruslan Z. VALIEV, Tamas UNGÁR, Levente BALOGH,