|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Advanced High-Strength Steels
||F-24: Role of Initial Microstructure in Micro Constituents of Dual Phase Steels
||Ersoy Erişir, Oğuz Gürkan Bilir
|On-Site Speaker (Planned)
In recent years, there have been intense study for dual phase steels since their multiphase character can help to achieve good strength-ductility properties along with low cost. In this study, effect of initial microstructure before annealing and quenching from a temperature between A1 and A3 is studied for medium carbon low alloyed steel. Kinetics calculations using the DICTRA software were performed to obtain the partitioning of alloying elements during intercritical annealing experiments. Ferrite+pearlite and martensite initial microstructures intercritically annealed at several temperature and duration and quenched. Effect of both intercritical annealing temperature, duration and initial microstructure were studied. Microhardness of martensite and ferrite in final microstructure is investigated. Lower hardness difference between martensite and ferrite may be a potential to enhance fracture toughness of dual phase steel.
||Planned: Supplemental Proceedings volume