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As a protective coating method initially developed for space and aviation industry thermal spray coating techniques have been widely used in several fields. Among a vast number of thermal spray coating techniques, Atmospheric Plasma Spraying (APS) and High Velocity Oxygen Fuel (HVOF) techniques are widely applied against harsh conditions such as wear, oxidation and corrosion due to their high applicability and cost efficiency. In the present research NiCr coating was deposited on Inconel 718 substrate materials using plasma spray and HVOF methods, and the coated specimens were subjected to dry
sliding wear tests under 3, 5, 7 and 10N loads at 0,08 m/s sliding speed using a pin-on-disc tribometer. Characterization of the coated specimens was performed before and after the wear tests using conventional characterization techniques. According to the wear loss and coefficient of friction values obtained after the performed tests, the coatings deposited with HVOF technique exhibited a higher wear performance as compared to those deposited with APS technique.
International Conference of Advanced Materials and Manufacturing Technologies
ICAMT
Mecit Oge
Fettullah Yildiz
S. Parlakyigit
Mustafa Sabri Gök
Abdullah Cahit KARAOGLANLI