Effect of microstructure on the abrasive wear resistance of steels with hardness 450 HV

Authors

• Oskari Haiko Materials and Mechanical Engineering, Centre for Advanced Steels Research, University of Oulu
• Vuokko Heino Materials Science and Environmental Engineering, Tampere Wear Center, Tampere University
• David A Porter Materials and Mechanical Engineering, Centre for Advanced Steels Research, University of Oulu
• Juha Uusitalo Materials and Mechanical Engineering, Centre for Advanced Steels Research, University of Oulu
• Jukka Kömi Materials and Mechanical Engineering, Centre for Advanced Steels Research, University of Oulu

DOI: https://doi.org/10.30678/fjt.82443

Keywords:

Steel, microstructure, abrasion

Abstract

Hardness has been considered the main factor controlling the abrasive wear of steels. However, microstructure also affects the wear behavior. Four steels with different microstructures were produced with a Gleeble 3800 thermomechanical simulator and tested for abrasive wear behavior. Different cooling rates and heat treatments were applied to obtain a surface hardness of approximately 450 HV. Mainly tempered martensite, pearlite and some bainite could be observed in the microstructures. Scratch testing with a CETR UMT-2 tribometer was conducted to produce wear tracks. The results revealed that each steel showed distinct wear behavior.