Publication Type : Journal Article
Publisher : Elsevier BV
Source : Journal of Materials Processing Technology
Url : https://doi.org/10.1016/j.jmatprotec.2024.118439
Keywords : Additive manufacturing, Selective laser melting, Ti-6Al-4V, Surface residual stress, High temperature wear
Campus : Amritapuri
School : School of Engineering
Center : Centre for Flexible Electronics & Advanced Materials
Department : Mechanical Engineering
Year : 2024
Abstract : The present study investigates the sparsely documented tribological performance of selective laser-melted Ti-6Al-4V over a wide range of temperatures (room temperature to 450 °C). The evolution of wear mechanism was traced by examining the phase changes, chemical composition, and morphology of wear tracks in the material. The native oxide layer developed on the surface of the material was found to mitigate adhesive wear during dry sliding at room temperature. At elevated temperatures, this oxide layer contributed to oxidative wear, as evidenced by the formation of a tribo-oxide layer with increased oxygen penetration. Further, abrasive wear was found to increase with increasing temperatures, which could be attributed to the presence of entrapped oxidized wear particles (third-body wear) and material softening.
Cite this Research Publication : K. Praveenkumar, Jithin Vishnu, Calvin Samuel S, Vasanth Gopal, Moganraj Arivarasu, Jürgen M. Lackner, Benjamin Meier, D. Karthik, Satyam Suwas, S. Swaroop, K.G. Prashanth, Mayank Kumar Yadav, Geetha Manivasagam, High temperature dry sliding wear behaviour of selective laser melted Ti-6Al-4V alloy surfaces, Journal of Materials Processing Technology, Elsevier BV, 2024, https://doi.org/10.1016/j.jmatprotec.2024.118439