High temperature dry sliding wear behaviour of selective laser melted Ti-6Al-4V alloy surfaces

Praveenkumar, K and Vishnu, J and Samuel S, C and Gopal, V and Arivarasu, M and Lackner, JM and Meier, B and Karthik, D and Suwas, S and Swaroop, S and Prashanth, KG and Yadav, MK and Manivasagam, G (2024) High temperature dry sliding wear behaviour of selective laser melted Ti-6Al-4V alloy surfaces. In: Journal of Materials Processing Technology, 329 .

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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. © 2024 Elsevier B.V.

Item Type:	Journal Article
Publication:	Journal of Materials Processing Technology
Publisher:	Elsevier Ltd
Additional Information:	The copyright for this article belongs to Elsevier Ltd
Keywords:	3D printing; Additives; Adhesives; Morphology; Residual stresses; Surface stress; Ternary alloys; Titanium alloys; Tribology; Vanadium alloys; Wear of materials, Dry sliding wear; High temperature wear; Highest temperature; Oxide layer; Selective laser melting; Sliding wear behaviour; Surface residual stress; Ti-6al-4v; Tribological performance; Wear mechanisms, Aluminum alloys
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	28 Jul 2024 16:52
Last Modified:	28 Jul 2024 16:52
URI:	http://eprints.iisc.ac.in/id/eprint/85170

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