Abrasive wear behaviour of continuously compacted thermal-sprayed Ni base alloy powder coatings in different conditions
by Sat Pal Sharma, D.K. Dwivedi, P.K. Jain
International Journal of Surface Science and Engineering (IJSURFSE), Vol. 2, No. 3/4, 2008

Abstract: In this paper, the influence of densification and post-spray heat treatment on the microstructure, porosity, micro-hardness and two-body abrasive wear behaviour of Ni-Cr-B-Si (EWAC 1004EN) coatings has been investigated. Coatings were deposited by using flame spraying torch. The post-spray heat treatment of the coatings was done using muffle furnace at 500°C for 1 h. Wear behaviour of the coatings was evaluated using pin-on-disk wear system against 220 abrasive grade SiC abrasive medium at 0.5, 1 and 1.5 kg normal loads. Results showed an increase in micro-hardness and wear resistance of densified and non-densified coatings after heat treatment.

Online publication date: Sat, 27-Sep-2008

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