Wear Behavior and Microstructure of Thermally Sprayed NiCrBSiFeC and Composite NiCrBSiFeC-WC(Co) Coatings

In this work, a study was carried out on the friction and wear behavior of flame thermal sprayed NiCrBSiFeC-WC(Co) composite NiCrBSiFeC coatings subjected to severe conditions. For purpose, remelted samples were tested in reciprocating conditions based cylinder-on-flat configuration. The assessment achieved using scanning electron microscopy (SEM) 3D optical profilometry. microstructure mechanical properties investigated SEM, EDS XRD techniques as along with indentation tests. tribological substrate successfully studied thanks tests conducted an adapted multi test apparatus. results show that both induced significant increase steel hardness resistance due formation precipitates high well dispersed within ultra-crystalline structure. Besides, adding WC(Co) leads coating further improved. return, it increases coefficient (COF) coatings’ roughness. Furthermore, improvements surface hardness, roughness coating-substrate adhesion attained after remelting process for coatings. Wear tracks investigations indicated dry sliding configuration promote several mechanisms may occur simultaneously.