|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals and Materials
||In-situ investigation of thermal characteristics of novel Flash processing technique for production of advanced high strength steel (AHSS)
||Artem A. Trofimov, Hsin Wang, Thomas R Watkins, Thomas R Muth, Sudarsanam S Babu, Gary M Cola
|On-Site Speaker (Planned)
||Artem A. Trofimov
AHSS is a focus of automotive and steel industries due to promising combination of high strength, lower weight, and good formability. However,utilization of AHSS is limited, in part, due to expensive alloying additions and/or energy intensive thermomechanical processing. Recently, Flash processing has shown potential to produce low-cost steel with high strength and good formability under cold stamping of complex shapes. The process consists of a rapid heating of steel sheets above 1000⁰C followed by quenching. At present, there is a lack of knowledge on thermal characteristics of Flash processing and their influence on structure-properties of created AHSS. In this work,AISI1020 steel sheets are Flash-processed at four peak temperatures from nominally 1075 to 1225⁰C; the thermal distributions across the length scale of the sheets are characterized with in-situ thermal imaging. Hardness measurements are correlated to the spatial locations and temperature on the sheets to understand the impact of the peak temperature.