Tribological and cicrostructure characteristics of WC-12Co/FeNiCrMo composite coating by HVOF process

2024年05月16日08:58 来源：无

Researchers found that using a high velocity oxyfuel (HVOF) system to create an improved temperature resistant iron-based (FeNiCrMo) composite coating on a boiler steel substrate significantly improves tribological and microstructural properties.

The composite coating leads to increased hardness and improved wear resistance compared to the substrate. Source: Gefo - Adobe.Stock

In the current study, a high-velocity oxyfuel (HVOF) system is used to generate an enhanced temperature sliding wear-resistant iron-based (FeNiCrMo) composite coating on a boiler steel substrate. FeNiCrMo (70%) and WC-12Co (30%) were mechanically mixed prior to coating utilizing the ball-milling technique. The HVOF system later used feedstock to create the coating. The coating samples were put through the necessary metallurgical and mechanical characterization processes. With pin-on-disc equipment, additional substrate and coating samples were acquired for a wear test without the need of lubrication. By using 10-N and 20N loads at room temperature and 200°C and 300°C conditions, wear tests were conducted.

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