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Application of Quenching and Partitioning Treatment During Press Hardening

Quenching and Partitioning (Q&P) is an advanced heat treatment for production of high strength steels, with the aim of having martensitic matrix with some amount of lath type retained austenite. In this microstructure, martensite gives a high strength while the retained austenite improves the ductility as well as toughness of the component. In this study, the concept of Q&P treatment has been utilized on a low carbon-high silicon steel during a press hardening process by controlling the quench temperature of the die and adding an subsequent heating step. High strength at the same time as good ductility combined with low production costs make this method attractive for automotive applications. The resulting mechanical properties in correlation with microstructure of samples out of different processing conditions are discussed in the paper, while PHS1500 was used as reference for comparison in this work.

DOI Number: 10.33313/512/A0702
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2024 CHS2 Conference Proceedings
PR-512-A0702
F. Forouzan, E. Vuorinen, M-L. Antti
May 27, 2024
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