کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4986485 1454950 2017 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Torsional fretting wear behavior of CuNiAl against 42CrMo4 under flat on flat contact
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Torsional fretting wear behavior of CuNiAl against 42CrMo4 under flat on flat contact
چکیده انگلیسی
Torsional fretting exists in many engineering applications and the contact configurations have great effects on the fretting wear behavior. Influence of angular displacement amplitudes and normal loads on torsional fretting were investigated under flat on flat contact. Friction torque versus angular displacement amplitudes and friction torque versus number of cycle curves were used to analyze the fretting kinetics behavior. Evolution of accumulated dissipated energy (ET) and wear volume (VW) with the change of angular displacement amplitudes were analyzed. The wear mechanisms were studied base on examinations under optical microscope (OM), scanning electron microscope (SEM) and Energy Dispersive X-Ray Spectroscopy (EDX). It is found that ET and VW analysis helps to reveal the variation of failure mechanisms with the change of angular displacement amplitudes. Uneven spread of wear scar under mixed slip resulted from the effects of debris on stress-redistribution. Similar to ball on flat contact, the torsional fretting wear mechanism under flat on flat contact was a combination of deformation, cracks, delamination abrasive wear and oxidation wear.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Wear - Volumes 380–381, 15 June 2017, Pages 6-14
نویسندگان
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