We present results on precipitation hardened ductile high strength maraging-TRIP steels with up to 1.5 GPa strength and good ductility. The alloys have low carbon content (0.01 wt% C), 9–15 wt% Mn, and additions of Ni, Ti, and Mo (1–2 wt%) for precipitation. Martensite aging leads to a surprising simultaneous increase in strength and total elongation for samples with 9 wt% Mn and 12 wt% Mn.
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Raabe et al. (2009) studied this question.
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