2013•Unpublished venueRequires access
Effect of heat treatment on microstructure and mechanical properties of air-cooled bainite/martensite composite wear resistant cast steel
Avic Shaanxi
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Abstract
Influence of heat treatment on microstructure and mechanical properties of bainite/martensite composite steel were investigated.The results show that the experimental steel can obtain bainite/martensite composite microstructure under different heat treatments.The steel samples spheroidized at 780 ℃ for 3 h with furnace cooling,then austenized at 920 ℃ for 1 h with sand cooling and tempered at 500 ℃ for 1 h can gain preferable comprehensive properties with hardness of 51 HRC,toughness of 12 J/cm2,and excellent wear resistance.