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Mechanistic studies on degradation in High-temperature sliding wear behavior of Al2O3 – 60TiO2 on Hastelloy X superalloy at 500οC

Publication Type : Journal Article

Publisher : International Journal of Pure and Applied Mathematics

Source : International Journal of Pure and Applied Mathematics, Volume 119, Issue 15, p.63-78 (2018)

Url : https://acadpubl.eu/hub/2018-119-15/4/631.pdf

Keywords : 3D surface topography, A60T, Friction, Plasma spray, SEM, sliding wear mechanism, Superalloy

Campus : Coimbatore

School : School of Engineering

Department : Mechanical Engineering

Year : 2018

Abstract : This technical paper deals with high temperature dry sliding wear behavior and its mechanism of Al2O3–60TiO2 (A60T) coating on Hastelloy X alloy. The sliding wear behaviour of the A60T coating on Hastelloy X alloy was investigated using a pin on disc equipment at 500oC with varying parameters like normal load and sliding velocity. SEM features of worn samples reveal that ploughing, deep grooving and splat exfoliation are the dominant wear mechanisms of A60T coating at 10 N, while at 30 N they are : crack extension, crack deflection, crack bridging and splat exfoliation.

Cite this Research Publication : K. G. Thirugnanasambantham, Saidulu, S., Maddu, Y. Ratnam, and Akula, N., “Mechanistic studies on degradation in High-temperature sliding wear behavior of Al2O3 - 60TiO2 on Hastelloy X superalloy at 500οC ”, International Journal of Pure and Applied Mathematics, vol. 119, no. 15, pp. 63-78, 2018.

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