کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1574347 1514711 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Grain boundary relaxation in yellow gold bi-crystals
ترجمه فارسی عنوان
آرامش مرز دانه در کریستال های زرد طلا
کلمات کلیدی
مرز دانه بی کریستال، اصطکاک داخلی، آلیاژ طلا، مرز دانه کشویی،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
چکیده انگلیسی
The mechanical loss spectrum of a yellow gold bi-crystal is presented and analyzed in detail. The relaxation strength is monitored as a function of several geometrical parameters such as sample width, length and thickness. It is found that the relaxation strength is proportional to the GB density (the inverse width), whereas it depends linearly on the sample thickness. The experimental findings are compared to finite elements (FE) simulations, where the material can glide frictionless along the grain boundary. The simulations show the same dependencies as the mechanical loss measurements. The relaxation peak in the loss spectrum can be interpreted as due to GB sliding accommodated by the elastic deformation of the grains.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 632, 24 April 2015, Pages 43-49
نویسندگان
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