2014•Gangtie yanjiu xuebaoRequires access

Microstructure Characteristic of JGR610E Large Oil Tank Steel Under Different Processing

Yin X

Abstract

Microstructure in different rolling and heat treatment process of oil tank steel by online quenching was investigated by thermal simulation experiments.Carbonitride precipitating behavior of micro-alloying elements was analyzed systematically.The experimental results show that with decrease in the final rolling temperature,the tank sank steel grain size gradually refines and the number of ferrite gradually increases;with increase of the cooling rate,the type of JGR610Eorganization changes from acicular ferrite,granular bainite to lath bainite,and the grain size is smaller.

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Key concepts: Lath, Acicular ferrite, Bainite, Materials science, Microstructure, Metallurgy, Ferrite (magnet), Grain size