Research report 2007 - Max-Planck-Institut für Eisenforschung GmbH

Development of High-Strength and Supra-Ductile Light-Weight Steels for Automotive

Authors
Frommeyer, Georg; Rablbauer, Ralf
Departments

Werkstofftechnik (Prof. Raabe, kommissarisch) (Prof. Dr.-Ing. Dierk Raabe)
MPI für Eisenforschung GmbH, Düsseldorf

Summary
Newly developed high manganese light-weight steels based on the Fe-Mn-Al-Si-C alloy system feature in comparison to conventional steels density reduction of 15 %, high tensile strengths up to 1100 MPa, exceptionally high plastic elongations up to 90 %, and excellent formability. Important for the presented alloy developments is the activation of special metallophysical strengthening and deformation mechanisms due to an appropriate alloy design.

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