Abstract
Recently principle of mechanics have been used successfully to model wear from first principles. Two basic mechanisms have been considered: in one, the material fractures and produces wear debris; in the other, the material below the surface is compressed and extrudes out in the form of thin slivers leading to loss of material from the contact. While the latter mechanism is not intrinsically a fracture process, fracture occurs to separate the wear debris which, otherwise, would remain attached just outside the contact. The analyses lead to Archard-type relationships and the wear coefficient may be predicted by considering material properties, surface topography and operating conditions.
The current analyses are correct under the normal working conditions of conventional tribological components; however, in their present form, they cannot be used for MEMS. Adhesion, lubrication and material properties are vital issues which need to be addressed. Adhesion becomes very important for lightly-loaded smooth surfaces. The wear rate under such conditions is expected to be greatly under-estimated by the present theories.
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© 1998 Springer Science+Business Media Dordrecht
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Franklin, F.J., Kapoor, A. (1998). Mechanics of Wear: From Conventional Components to MEMS. In: Bhushan, B. (eds) Tribology Issues and Opportunities in MEMS. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5050-7_13
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DOI: https://doi.org/10.1007/978-94-011-5050-7_13
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