Effect of Microstructure and Mechanical Properties on Two Body Abrasive Wear Resistance of Medium-Carbon Low-Alloy Steel

Abstract:

The effect of microstructure and mechanical properties on abrasion resistance of the medium-carbon low-alloy steel has been investigated under two body abrasive wear conditions. The results show that the microstructure of the test steel is mastenite and bainite/mastenite when the specimen subjected to water quenching and blow cooling respectively. The hardness of the test steel was over 52HRC when the specimen subjected to water quenching and blow cooling, however, effect of tempering temperature on hardness is slightly. The strength of the test steel is increased with the tempering temperature increased and the impact toughness change slightly under the blow cooling condition. The tensile strength of the test steel is decreased and the yield strength is increased with the tempering temperature increased when the specimen subjected to water quenching and followed tempering. The wear rate is increased with load and the wear mechanism is micro-cutting and microploughing. The wear resistance of bainite/martensite is better than single-phase martensite. The hardness and impact toughness are important factor under two body abrasive wear condition.

• Periodical: Applied Mechanics and Materials (Volumes 52-54)
• Pages: 1247-1252
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.52-54.1247
• Online since: March 2011
• Authors: Jun Miao, Li Jun Wang, Chun Ming Liu
• Keywords: Bainite, Blow Quenching, Martenite, Martensite, Medium Carbon Low Alloy Steel, Two-Body Abrasive Wear, Water Quenching, Wear Mechanism

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