کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1584699 | 1514906 | 2006 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thermal stresses in Mg–Ag–Nd alloy reinforced by short Saffil fibers studied by internal friction
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Thermal stresses in Mg–Ag–Nd alloy reinforced by short Saffil fibers studied by internal friction Thermal stresses in Mg–Ag–Nd alloy reinforced by short Saffil fibers studied by internal friction](/preview/png/1584699.png)
چکیده انگلیسی
Mechanical spectroscopy has been used in order to investigate thermal stresses relaxation in the QE22 magnesium alloy (Mg–2Ag–2Nd) reinforced with 20 vol.% of δ-alumina short fibers (Saffil® fibers). Composite has been processed by a squeeze cast technique. Specimens have undergone thermal cycling between 20 and 450 °C with different temperature rate T˙ and excitation frequency ω. The relaxation of thermal stresses gives rise to additional internal friction. The mechanical loss versus temperature spectrum showed a transient maximum while heating and two maxima while cooling. A model where thermal stresses are relaxed by dislocation motion controlled by a solid friction mechanism has been used to interpret the experimental results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 442, Issues 1–2, 20 December 2006, Pages 480–483
Journal: Materials Science and Engineering: A - Volume 442, Issues 1–2, 20 December 2006, Pages 480–483
نویسندگان
Z. Trojanová, B. Weidenfeller, W. Riehemann,