A Study on the Effects of Temperature and Heat Retention Time at High Tempering on the Hardness and Strength Limit of the Turbine Shaft Made of 42CrMo Steel

Abstract

The turbine shaft is an important part of the turbocharger structure. This part requires quite high hardness, especially when operating it needs high strength to ensure the working conditions with very high speed, pressure and temperature. This paper presents the research results of the effects of temperature and heat retention time at high tempering on the hardness and tensile strength of the turbine shaft in the HX40W model turbocharger structure made of 42CrMo steel.