کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
617442 1454994 2013 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fretting fatigue and friction of quenched and tempered steel in dry contact with aluminum bronze
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Fretting fatigue and friction of quenched and tempered steel in dry contact with aluminum bronze
چکیده انگلیسی


• Fretting fatigue measurements were made with bronze–steel Hertzian point contact.
• The friction coefficient was measured to be around unity in gross sliding.
• Fretting wear damage leads to material transfer.
• Fatigue cracks nucleate next to wear debris.

Bronze–steel contacts are common in machinery where the loading might give rise to fretting conditions. The flat surfaces of the quenched and tempered steel (QT) specimens were fretted with aluminum bronze spheres in partial slip and gross sliding conditions. The dry friction coefficient was around unity in gross sliding. Material transfer occurred from bronze pad to the QT-specimen and cracks initiated at these locations. Fretting map comparisons with QT–QT fretting tests showed that aluminum bronze–QT contact produces fatigue cracks with lower values in terms of displacement amplitude, tangential force amplitude and Findley cracking risk.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Wear - Volume 308, Issues 1–2, 30 November 2013, Pages 155–165
نویسندگان
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