کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
619444 | 1455037 | 2010 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Pressure and thermally induced stages of wear in dry sliding of a steel ball against an aluminium-silicon alloy flat
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
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چکیده انگلیسی
Wear of etched near-eutectic aluminium-silicon alloy slid against a steel ball under ambient is explored. The sliding velocity is kept low (0.01Â m/s) and the nominal contact pressure is varied in a 15-40Â MPa range. Four stages of wear are identified; ultra mild wear, mild wear, severe wear and post severe oxidative wear. The first transition is controlled by the protrusions of silicon particles, projecting out of the aluminium alloy matrix. Once these protrusions disappear under pressure and sliding, oxidation and bulk energy dissipation mechanisms take over to institute transitions to other stages of wear. The phenomenological characteristics of wear stages are explored using a variety of techniques including nanoindentation, focused ion beam milling, electron microscopy, X-ray photoelectron spectroscopy (XPS), energy dispersive X-ray spectroscopy (EDS) and optical interferometry.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Wear - Volume 268, Issues 9â10, 25 March 2010, Pages 1080-1090
Journal: Wear - Volume 268, Issues 9â10, 25 March 2010, Pages 1080-1090
نویسندگان
Anirban Mahato, Thomas A. Perry, Vikram Jayaram, S.K. Biswas,