Influence of the Partitioning Treatment on the Mechanical Properties of a 0.3C-1.5Si-3.5Mn Q&P Steel

Abstract:

The Quenching and Partitioning (Q&P) process is a promising method for developing steels with superior mechanical properties. This process includes quenching an austenitic microstructure to form a controlled fraction of martensite, an isothermal treatment (partitioning step) aiming for the partitioning of carbon from martensite to austenite and a final quench to room temperature. This paper analyses the concurrent processes of carbon partitioning and martensite tempering during the partitioning step of a 0.3C-1.5Si-3.5Mn (wt.%) Q&P steel. The influence of the martensite tempering and the carbon partitioning on the tensile strength as well as on the uniform and post-uniform elongation of the developed Q&P microstructures is investigated.

• Periodical: Advanced Materials Research (Volume 922)
• Pages: 224-229
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.922.224
• Online since: May 2014
• Authors: Farideh Hajy Akbary*, Maria Jesus Santofimia, Jilt Sietsma
• Keywords: Martensite, Partitioning Process, Quenching Process, Retained Austenite

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