TRIP assisted press hardened steel by the anisothermal bainitic ferrite transformation
Journal of Materials Processing Technology（2021）
Abstract
•New manufacturer friendly TRIP assisted steel chemistry.•New economical press hardening process.•New TRIP assisted Press Hardened Steel parts exhibit uniform austenite distribution.•Stress induced transformation of austenite in cold formed regions of parts is avoided.•22 % increase to energy absorption under axial crushing compared to cold formed parts.
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Key words
Retained austenite,Stress induced transformation,Electron back scattered diffraction,Hot stamping,Crush testing,Numerical simulation
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