The inter-relationships between geometrical properties, microstructural characteristics and corrosion resistance on one hand and laser-material interaction parameter (a) on the other hand are examined. A laser-material interaction parameter within the range of 599 = a = 400 J.s g-1 mm-1 imparted optimum characteristics of microstructure, microhardness and corrosion resistance. The consolidation mechanism of the coatings indicates that this parameter ensures the formation of a double ‘burn-in’ macrostructure into the substrate which imparts non-porous, crack-free and a fine interfacial microstructure. This study provides guidance in designing Inconel 625 coatings of desirable microstructures and corrosion resistance.
Reference:
Olakanmi, E.O. (et.al.). 2020. Consolidation mechanism, microstructural evolution and corrosion resistance of Inconel 625 coatings. Surface Engineering, 14pp.
Olakanmi, E., Malikongwa, K., Nyadongo, S., Hoosain, S. E., & Pityana, S. L. (2020). Consolidation mechanism, microstructural evolution and corrosion resistance of Inconel 625 coatings. http://hdl.handle.net/10204/11623
Olakanmi, EO, K Malikongwa, ST Nyadongo, Shaik E Hoosain, and Sisa L Pityana "Consolidation mechanism, microstructural evolution and corrosion resistance of Inconel 625 coatings." (2020) http://hdl.handle.net/10204/11623
Olakanmi E, Malikongwa K, Nyadongo S, Hoosain SE, Pityana SL. Consolidation mechanism, microstructural evolution and corrosion resistance of Inconel 625 coatings. 2020; http://hdl.handle.net/10204/11623.
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