کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1602078 1515894 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Internal friction in Fe-Al-Si alloys at elevated temperatures
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Internal friction in Fe-Al-Si alloys at elevated temperatures
چکیده انگلیسی
Anelastic effects in ternary Fe-Al-Si alloys at elevated temperatures (from 400 to ∼700 °C) have been studied by mechanical spectroscopy. The contributions of several damping mechanisms (high temperature background, Zener and grain boundary relaxations), which are sensitive to the structural state in the temperature range studied, are analysed. The structure of the alloys was examined by different methods. The results of computer analyses of the experimental data justify the superposition of several relaxation processes. Parameters of the Zener relaxation in two ternary Fe-Al-Si alloys are determined: the peak temperature is about 545 °C (f ≈ 2 Hz); the mean value of the activation energy of the Zener relaxation is about 2.54 eV.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Intermetallics - Volume 14, Issues 10–11, October–November 2006, Pages 1238-1244
نویسندگان
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