|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||High Performance Steels
||Microstructural Engineering in Dual Phase Steels -Partitioning Aspects and Correlation to Formability
||Soudip Basu, Anirban Patra, B.N. Jaya, Sarbari Ganguly, Monojit Dutta, Indradev Samajdar
|On-Site Speaker (Planned)
Dual phase (DP) steels, a functional example of advanced high strength steels, are heavily employed in the automobile industry where high formability becomes a prerequisite. Improving formability directly correlates to delaying failure under complex stress fields, in other words post-necking ductility. This requires an understanding of the partitioning behavior of stresses, strains and triaxialities at a microstructural level. A combination of experiments and simulations have been used to predict the effect of microstructural variables like phase hardness differential, martensite volume fraction and size on the partitioning characteristics of DP, and their concurrent effect on the strength-ductility optimization. The knowledge obtained from such studies is used to generate and validate microstructures with desirable formability. This microstructural engineering approach can thus be used to obtain DP microstructures which provide enhanced partitioning and hence better resistance to failure during their manufacturing and service.
||Mechanical Properties, Computational Materials Science & Engineering, Iron and Steel