The present study investigates the effect of Al and grain size on the notch sensitivity and fracture toughness of twinning-induced plasticity (TWIP) steels. It is evident that the notch sensitivity… Click to show full abstract
The present study investigates the effect of Al and grain size on the notch sensitivity and fracture toughness of twinning-induced plasticity (TWIP) steels. It is evident that the notch sensitivity and fracture toughness of TWIP steels can be improved by the addition of Al and grain refinement. Furthermore, the relatively low fracture toughness and high-notched sensitivity of coarse-grained TWIP steels can be explained by a quasi-cleavage fracture mechanism.
               
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