Fe-C-Mn-Al light steel has good corrosion resistance,low density and excellent comprehensive mechanical properties.Adding alloying elements to the steel will significantly affect the thermodynamics and kinetics of phase transformation,further affecting and determining the evolution process of the micro-structure morphology.The addition of Cr has a significant effect on the microstructure.This paper analyzes how the addition of Cr of different content influences κ-Carbides、β-Mn,DO3 and other phases growth,the change of grain size and the change of grain boundary angle,and promotes the formation of Al2O3 and Cr containing oxides to improve the tensile strength,corrosion resistance,oxidation resistance and other properties of Fe-C-Mn-Al light steel.This paper also analyzes the advantages of the addition of Cr and dif-ferent content of Cr in Fe-C-Mn-Al light steel.And the current development trend is prospected.
维普
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