Studies on wear behavior of nano-intermetallic reinforced Al-base amorphous/nanocrystalline matrix in situ composite |
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| Authors: | D Roy SS Singh B Basu W Lojkowski R Mitra I Manna |
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| Affiliation: | 1. Metallurgical and Materials Engineering Department, Indian Institute of Technology, Kharagpur 721302, India;2. Metallurgical and Materials Engineering Department, Indian Institute of Technology, Kanpur 802016, India;3. Institute of High Pressure Physics (Unipress), Polish Academy of Sciences, Sololowska 29, 01-142 Warsaw, Poland;1. School of Mechanical Engineering, Shiraz University, Shiraz 71963-16548, Iran;2. Department of Medical Physics and Biomedical Engineering, Research Center for Medical Nanotechnology and Tissue Engineering, Shahid Beheshti University of Medical Sciences, Evin, Tehran, Iran;3. Computational Physical Sciences Research Laboratory, School of Nano-Science, Institute for Research in Fundamental Sciences (IPM), Tehran, Iran;1. Department of Mechanical Engineering, Tokyo University of Science, Tokyo 125-8585, Japan;2. Department of Mechanical Engineering, Sun Moon University, Asan 336-708, South Korea |
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| Abstract: | Resistance to wear is an important factor in design and selection of structural components in relative motion against a mating surface. The present work deals with studies on fretting wear behavior of in situ nano-Al3Ti reinforced Al–Ti–Si amorphous/nanocrystalline matrix composite, processed by high pressure (8 GPa) sintering at room temperature, 350, 400 or 450 °C. The wear experiments were carried out in gross slip fretting regime to investigate the performance of this composite against Al2O3 at ambient temperature (22–25 °C) and humidity (50–55%). The highest resistance to fretting wear has been observed in the composites sintered at 400 °C. The fretting wear involves oxidation of Al3Ti particles in the composite. A continuous, smooth and protective tribolayer is formed on the worn surface of the composite sintered at 400 °C, while fragmentation and spallation leads to a rougher surface and greater wear in the composite sintered at 450 °C. |
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