|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Advanced High-strength Steels
||The Super High Strength of Aluminium-added Medium Manganese Steel after the Quenching and Tempering-associated Partitioning Process
||Liang Juhua, Zhao Zhengzhi, Liang Jiangtao, Tang Di
|On-Site Speaker (Planned)
Quenching and tempering-associated partitioning (Q–T & P) was applied to the aluminium-added medium manganese steel. The special quenching temperature was design at the room temperature by adjusting the appropriate intercritical annealing temperature. The aluminium-added medium manganese steel exhibited the super high strength combining with the comparable elongation after the tempering treatment. The yield strength is elevated from 841 MPa to 1133 MPa, while the tensile strength varies from 1921 MPa to 1781 MPa. Obviously more retained austenite after the tempering treatment, as revealed by electron backscattered diffraction (EBSD) analysis, accounts for the improved elongation from 8.8 % to 15.1 %. This also proves the mobile α / γ interface during the partitioning in the experimental steel.
||Planned: Supplemental Proceedings volume