کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5456029 | 1514647 | 2017 | 27 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Nanocrystalline Al-Mg with extreme strength due to grain boundary doping
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Nanocrystalline Al-Mg with extreme strength due to grain boundary doping Nanocrystalline Al-Mg with extreme strength due to grain boundary doping](/preview/png/5456029.png)
چکیده انگلیسی
Nanocrystalline Al-Mg alloys are used to isolate the effect of grain boundary doping on the strength of nanostructured metals. Mg is added during mechanical milling, followed by low homologous temperature annealing treatments to induce segregation without grain growth. Nanocrystalline Al -7 at% Mg that is annealed for 1 h at 200 °C is the strongest alloy fabricated, with a hardness of 4.56 GPa or approximately three times that of pure nanocrystalline Al. Micropillar compression experiments indicate a yield strength of 865 MPa and a specific strength of 329 kN m/kg, making this one of the strongest lightweight metals reported to date.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 696, 1 June 2017, Pages 400-406
Journal: Materials Science and Engineering: A - Volume 696, 1 June 2017, Pages 400-406
نویسندگان
Simon C. Pun, Wenbo Wang, Amirhossein Khalajhedayati, Jennifer D. Schuler, Jason R. Trelewicz, Timothy J. Rupert,