کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
614689 | 881409 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dry sliding frictional characteristics of ZE10 and AZ80 magnesium strips under plastic deformation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Frictional behaviour of ZE10 and AZ80 magnesium alloys was investigated using a sheet metal forming simulator (SMFS) with a steel pin as counterpart on dry sliding conditions. Friction coefficients were measured within a sliding velocity range of 5-35Â mm/s and contact pressure range of 2-15Â MPa. The results showed that increasing contact pressure lead to an increase in coefficient of friction for both alloys; while the effect of sliding speed was negligible. A theoretical model is also developed to predict the coefficient of friction as a function of contact pressure. The model takes into account the surface characteristics as well as mechanical properties of alloys. The results of the theoretical model were compared with the results obtained from experiments and showed very good correlation. To further investigate the effect of process parameters on SMFS outputs, a finite element (FE) model was developed in ABAQUS software and the effects of bending angle and pin diameter on the friction tests results were studied. The FE model showed that the friction coefficient increases by increasing the bending angle and pin diameter.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tribology International - Volume 82, Part A, February 2015, Pages 255-262
Journal: Tribology International - Volume 82, Part A, February 2015, Pages 255-262
نویسندگان
Maziar Ramezani, Thomas Neitzert, Timotius Pasang, M.A. Sellès,