Effects of Quenching and Partitioning Process on Mechanical Properties of a Hot-Stamping Steel

Abstract:

As a novel heat treatment process, Q&P (quenching and partitioning) process can be applied to enhance the ductility of steels. In this paper, the effects of different parameters of Q&P process (such as quenching temperature, partitioning temperature and partitioning time) on mechanical properties and microstructure of 22MnB5 steel was investigated. Analysis demonstrated that austenite can be stabilized via Q&P process and the volume fraction of retained austenite increases with the partitioning temperature and the partitioning time. The mechanical properties of the steel can be controlled to acquire the steel with excellent strength-ductility balance by Q&P process.

• Periodical: Materials Science Forum (Volume 788)
• Pages: 340-345
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.788.340
• Online since: April 2014
• Authors: Ming Cheng, Hong Wu Song*, Xin Li, Shi Hong Zhang, Ming Cheng, Tao Lin
• Keywords: Elongation, High Product of Strength, Hot-Stamping Steel, Q&P Process, Vehicle Lightweight

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