Tribological behavior of low carbon steel, grade AISI1018 overlayed with nickel based MMC plus WC

Abstract

Friction Coefficient (FC), Rate of specific wear (RSW) of low carbon steel of grade AISI 1018 overlayed with nickel-based MMC plus WC using laser cladding were investigated in this tribological study. Specimens were pressed up on to a rotating steel disc (EN31), experiments were conducted on low carbon steel and low carbon steel overlayed with nickel-based MMC plus WC on a pin-on-disc machine. MMC based on nickel were layered over low carbon steel using the laser cladding process. A set of samples were used in the experiments, which lasted 20 minutes and involved loading conditions of 10N, 20N, 30N, 40N, and 50N with sliding distances ranging from 1000 m to 3000 m. The findings demonstrate how different loads and sliding distances affect the SWR and CoF. Generally, speaking, CoF rises during the rubbing phase and then stays steady for the duration of the test. The obtained results indicate that, for cladded material, the FC and RSW increase with increasing applied load and sliding distance.RSW and FC of Low Carbon Steel overlayed with Nickel based MMC plus WC, which was created using the Laser Cladding Process, decreased. When compared to low carbon steel, the RSW of low carbon steel overlayed with nickel-based MMC plus WC that was created using laser cladding decreased to 31.26%. CoF of low carbon steel covered with MMC plus WC based on nickel, created by laser cladding, is found to be 12.13% lower. To investigate the worn surfaces of the base metal, a Scanning Electron Microscope (SEM) was used, which is low carbon steel and low carbon steel layered with nickel-based MMC plus WC using laser cladding. Two types of samples had worn surfaces with shallow and fine grooves at low loads, and large quantities of cracks at high loads, which raised weight loss.