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Updated: Feb 28, 2026

Preparation and High-temperature Anti-adhesion Behavior of a Slippery Surface on Stainless Steel
Published on: March 29, 2018
Tribological Performance of Stellite 6/TiN Composite Coatings on Austenitic Stainless Steel
Shuai Xu1, Xiaokang Wu2, Jinlong Gu2
1School of Mechanical and Electrical Engineering, Soochow University, 8 Jixue Road, Suzhou 215000, China.
Abstract:
To enhance the quality and longevity of valve sealing surfaces, this study fabricated the Stellite 6/TiN composite coatings on F347 austenitic stainless steel. The process involved a plasma transferred arc (PTA) of Stellite 6 coating onto the substrate followed by physical vapor deposition (PVD) of a TiN coating onto the Stellite 6 layer. Mechanical testing revealed that the composite coatings achieved high hardness (~2110 HV), excellent adhesion (critical load Lc2 ~74 N), and superior wear resistance versus uncoated steel and single-layer Stellite 6. At 500 °C, the composite reduced wear volume by 97.2% compared to the uncoated substrate. Wear mechanisms for the Stellite 6 and composite coatings at high temperatures were elucidated, highlighting the role of Stellite 6/TiN composite coatings in enhancing tribological performance.
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