Print Email Facebook Twitter Characterization of a Medium Mn-Ni Steel Q&P Treated by a High Partitioning Temperature Cycle Title Characterization of a Medium Mn-Ni Steel Q&P Treated by a High Partitioning Temperature Cycle Author Arribas, Maribel (Tecnalia, Basque Research and Technology Alliance (BRTA)) Del Molino, Eider (Tecnalia, Basque Research and Technology Alliance (BRTA); CSIC-UPV/EHU) Gutiérrez, Teresa (Tecnalia, Basque Research and Technology Alliance (BRTA)) Arlazarov, Artem (ArcelorMittal) Martin, David (Swerim) De Caro, Daniele (Centro Ricerche Fiat) Ayenampudi, S. (TU Delft Team Kevin Rossi) Santofimia, Maria Jesus (TU Delft Team Maria Santofimia Navarro) Date 2022 Abstract In this work, a medium Mn-Ni steel was treated through Quenching and Partitioning (Q&P) with a partitioning temperature (PT) of 650 °C, which corresponded to the start of the austenite reverse transformation (ART) phenomenon. The influence of the quenching temperature (QT) and partitioning time (Pt) on austenite stabilization and mechanical properties was investigated. A strong influence of the quenching temperature was observed. Results were compared with those obtained after a Q&P treatment with 400 °C partitioning temperature. The Q&P cycle with quenching to room temperature and a high partitioning temperature produced a steel with a high retained austenite (RA) volume fraction and exceptional strength–ductility balance. The analysis of the mechanical stability of the retained austenite revealed a significant stress-induced transformation. Nevertheless, the austenite, which was stable at stresses above the yield stress, provided significant TRIP-assisted ductility. Bending, hole expansion and post-stamping properties were also evaluated for the most promising conditions. Subject quenching and partitioningmedium Mn steelsaustenite reverse transformationaustenite stability To reference this document use: http://resolver.tudelft.nl/uuid:e7707a84-8ff8-4771-89a2-85eb881b2d87 DOI https://doi.org/10.3390/met12030483 ISSN 2075-4701 Source Metals, 12 (3) Part of collection Institutional Repository Document type journal article Rights © 2022 Maribel Arribas, Eider Del Molino, Teresa Gutiérrez, Artem Arlazarov, David Martin, Daniele De Caro, S. Ayenampudi, Maria Jesus Santofimia Files PDF metals_12_00483.pdf 2.86 MB Close viewer /islandora/object/uuid:e7707a84-8ff8-4771-89a2-85eb881b2d87/datastream/OBJ/view