Surface Topography Evolution of Engineered Surfaces during Sliding Wear

Abstract:

Due to experimental limitations, sometimes it is challenging to tackle the thorough change in asperity characteristics (contact pressure, real area of contact, asperity radius), which demands a more suitable analytical model for prediction of such characteristics. This work demonstrates an approach for modeling sliding wear that provides an insight into the evolution of surface topography with operational cycles. The wear model is applied on various engineered surfaces to study the change in surface topography with wear cycles. It is concluded that different engineered surfaces nearly with same roughness demonstrate totally different behavior during sliding wear. It is observed that milled surface in comparison to turned, honed and grinding surfaces experiences minimum contact pressure due to very high correlation length. Within the range of wear cycles, maximum increase in the asperity radius is observed for milled surface.

• Periodical: Key Engineering Materials (Volume 901)
• Pages: 199-207
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.901.199
• Online since: October 2021
• Authors: Deepak K. Prajaapti*
• Keywords: Asperity Radius, Contact Pressure, Correlation Length, Real Area of Contact, Surface Topography

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