The consumption of energy is of vital importance in many engineering applications as e. g. in shock absorption, crash resistance and prevention of brittle fracture in case of overload. A stainless austenitic CrMn-steel was developed in respect to a higher yield strength and intensive work hardening as well as to a delay of necking and microvoid formation in uniaxial tensile tests. The new steel reached almost three times the proof strength of a conventional austenitic steel and thereby entered the range of high strength constructional steels. Strong work hardening raised the true fracture strength to > 2500MPa. This corresponds to a hardness of 56 to 58 HRC, which is otherwise achieved only by martensitic transformation in tool steels. This high hardness is preceded by a fracture elongation of > 70 bringing the specific fracture energy close to 700 J/cm~3, which is at least 50 above that of standard stainless steels. In ISO-V notch impact test 100 J were measured at a testing temperature of-90℃.
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