Open AccessCharacterization of Stellite-6 high velocity oxy-fuel coating on titanium alloy
Author(s) -
N. Jegadeeswaran,
B.S. Raju,
L.H. Manjunath,
B. Somasundaram,
B. T. Raju
Publication year - 2022
Publication title -
journal of mines, metals and fuels
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.125
H-Index - 11
ISSN - 0022-2755
DOI - 10.18311/jmmf/2021/30088
Subject(s) - materials science , stellite , coating , scanning electron microscope , microstructure , alloy , metallurgy , fracture toughness , titanium , porosity , titanium alloy , composite material
In the present investigation, cobalt based coating powder namely Stellite-6 was sprayed on titanium alloy (Ti-31) when used in gas turbines by high velocity oxy-fuel method. The microstructure and mechanical properties of the coatings were characterized like coating thickness, density, porosity, surface roughness and micro hardness. The advanced characterization of using advanced microscopy of X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM/ EDX). Followed by fracture toughness of the coating was measured by Palmqvist method. The very good bonding strength between coating and substrate material were identified.