Journal
TRIBOLOGY INTERNATIONAL
Volume 147, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2018.06.004
Keywords
Slurry erosion; Stellite-6; Colmonoy-88; HVOF thermal spraying
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The present study deals with the analysis of erosion tribo-performance of Stellite-6 and Colmonoy-88 micron layers deposited on stainless steel 316 L by using high-velocity oxygen-fuel (HVOF) process. The average roughness of Stellite-6 and Colmonoy-88 deposited SS-316 L was measured as 5.69 and 6.67 mu m respectively. The crack toughness of Stellite-6 and Colmonoy-88 deposited surface was evaluated as 19.8 +/- 0.56 and 30.1 +/- 0.29 MPa m(1/2) respectively. Erosion wear experiments were performed by using a Ducom slurry pot tester at different process parameters. Results show that the relative erosion wear of SS-316 L and Stellite-6 was observed maximum at 30 degrees impact angle whereas relative erosion of Colmonoy-88 was found maximum at 60 degrees. Microhardness of SS-316 L was improved about 2.5-3.2 times with deposition of Stellite-6 and Colmonoy-88.
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