Research Situation of Service Performance of Fe-Mn-Al-C Austenitic Low Density Steel
The"carbon peaking and carbon neutrality goals"strategy has led to the vigorous development of lightweight materials and technologies.As one of the most important structural materials,steels play an important role in the development of national economy.Fe-Mn-Al-C steels attracts more attention of scholars both at home and abroad due to its high-density reductions,high corrosion resistance,high strength(tensile strength 600-2 000 MPa)and high plasticity(elongation 30％-100％).In particular,the austenitic low-density steel allow advantages in comprehensive performance and formability,which is considered to be a potential material for structural parts in automotive,transportation,military and other fields.The recent progress on the typical service properties of Fe-Mn-Al-C low density steel,which are of particular importance in the automotive industry,is critically reviewed.And basic mechanical properties,machining and forming properties and important service performance of the austenitic low-density steel are mainly discussed.The mechanical behavior,deformation characteristics and service performance Evaluation about impact,fatigue,and corrosion of Fe-Mn-Al-C low-density steel is summarized by classification.At last,the scientific and technological issues,which still need to be broken through in the industrial application of this type of steel as structural components,have been induced,and the key directions and research paths for improving the service performance of austenitic Fe-Mn-Al-C low-density steel in the future have been proposed.
austenitic low density steelFe-Mn-Al-Cmechanical propertiesformabilityservice performance
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