Temperature-mediated tribological characteristics of 40CrNiMoA steel and Inconel 718 alloy during sliding against Si3N4 counterparts

Abstract

A comparative evaluation of the friction and wear behaviors of 40CrNiMoA steel and Inconel 718 alloy sliding against Si3N4 counterparts was conducted over a large temperature range from room temperature (RT) to 800 °C. The temperature-dependent tribological properties associated with the resulting chemical mitigation and structural adaptation of the solid sliding surface were clarified by surface/interface characterizations. The results revealed desirable performance in reducing friction and wear at elevated temperatures, which was associated with the resulting oxide composite film’s adaptive lubricating capability, whereas severe abrasive wear occurred at room/ambient temperatures. The oxidative-abrasive differentials for the two alloys were further discussed by considering the combined effect of temperature and stressed-shearing conditions.

A review of advances in tribology in 2020–2021

“…Salient findings of some of these studies pertaining to various materials are discussed below. Bai et al [805] studied the tribological characteristics of 40CrNiMoA steel and Inconel 718 alloy during sliding against Si 3 N 4 counterparts in a ball on disc test configuration from room temperature to 800 °C. They reported that the friction coefficients and wear rates of both the alloys decreased at higher temperatures mainly due to the formation of tribo-oxide film.…”

Effect of the elevated temperature on the wear behavior of Laser Metal Deposition IN718 repairs

“…They refer to the layer formed by these oxides as the glaze layer. It has been observed in numerous research that nickel-based alloys can form a glaze layer when subjected to tribological stresses at high temperature [13], [23]. Stott et al explained the formation of such a layer through the compression and compaction of oxidized debris that form at the beginning of the wear process [24].…”

Thermal–Mechanical and Microstructural Simulation of Rotary Friction Welding Processes by Using Finite Element Method

“…where the friction coefficient is µ, the contact pressure is P, and contact shear stress is τ f . Bai et al [27] conducted experiments to measure the friction coefficient of Inconel 718 at different temperatures. Their results, depicted in Figure 3, were used in the current simulation for accurate analysis.…”