Effects of Austenitizing Temperature on Microstructure and Properties of Hot-Formed Steel

Abstract:

Press hardening steel is the best solution for application of extremely high strength steel in automotive structures in order to reduce the weight of body-in-white. Effect of austenitizing temperature on the grain coarsening of a press hardening steel has been investigated by using dilatometer at first. The mechanical properties of press-hardened steel austenitized at temperature between 850 to 950oC by using a pilot hot stamping line have been investigated. The strength, especially the ultimate tensile strength, was improved by the grain refinement with lower austenitization temperature.

• Periodical: Advanced Materials Research (Volume 1063)
• Pages: 88-92
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1063.88
• Online since: December 2014
• Authors: He Long Cai, Peng Ju Du, Hong Liang Yi*, Di Wu
• Keywords: Austenitization, Grain Refinement, Hot Stamping, Press Hardening

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