Abstract
Experimental Study to Improve the Tribological Behaviors of M50 Steel via WS2 Solid Lubricant under High Temperatures
Highlights
The demand for self-lubricating composites has been driven by the advanced technological systems like high-performance gas turbine engines and aerospace applications in which the working components are supposed to possess lower friction coefficients and better wear resistance over a wide temperature range [14]
Through the experiments that carried out by Rosado et al [8,9,10,11] to investigate the effect of temperature (RT and 177 °C) on the wear behavior of M50 steel when using different lubricants, they confirmed that the temperature and lubricant type affect significantly the wear and friction of M50
The main aim of this present study is to investigate the effect of temperature from room temperature (RT, 27 °C) to 800 °C on the tribological characteristics of M50 steel composites when using WS2 as a solid lubricant and sliding against Si3N4 counterface
Summary
The demand for self-lubricating composites has been driven by the advanced technological systems like high-performance gas turbine engines and aerospace applications in which the working components are supposed to possess lower friction coefficients and better wear resistance over a wide temperature range [14]. The bearings in aerospace and biomedical systems are fabricated mainly from M50 steel due to its high strength, toughness, contact fatigue resistance, and hardness [5,6,7]. Their practical applications as relative sliding components at high temperatures have been restricted by their poor properties of anti-friction and wear-resistance. Childs and Mimaroglu [12] attempted experimentally to reduce the friction and wear of dry and lubricated M50 and T1 high speed steels and silicon nitrides by testing them at high temperatures were ranged from 20 to 600 °C or 200 °C
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