کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8011890 | 1516932 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Processing map and microstructure evaluation of AA6061/Al2O3 nanocomposite at different temperatures
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Hot compression behavior of Al6061/Al2O3 nanocomposite was investigated in the temperature range of 350-500 °C and the strain rate range of 0.0005-0.5 sâ1, in order to determine the optimum conditions for the hot workability of nanocomposite. The activation energy of 285 kJ/mol for the hot compression test is obtained by using hyperbolic sine function. By means of dynamic material model (DMM) and the corresponding processing map, safe zone for the hot workability of AA6061/Al2O3 is recognized at temperature of 450 °C and strain rate of 0.0005 sâ1 and at temperature of 500 °C and the strain rate range of 0.0005-0.5 sâ1, with the maximum power dissipation efficiency of 38%. Elongated and kinked grains are observed at 400 °C and strain rate of 0.5 sâ1 due to the severe deformation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transactions of Nonferrous Metals Society of China - Volume 27, Issue 6, June 2017, Pages 1248-1256
Journal: Transactions of Nonferrous Metals Society of China - Volume 27, Issue 6, June 2017, Pages 1248-1256
نویسندگان
H.R. EZATPOUR, S.A. SAJJADI, M. HADDAD SABZEVAR, A. CHAICHI, G.R. EBRAHIMI,