Research Progress and Prospects of Austenite-Based Fe-Mn-Al-C Lightweight Steels
Weight reduction of materials is an eternal topic.Recently,Fe-Mn-Al-C steels with low density and good comprehensive properties have attracted considerable interests in the fields of material research and industries.In Fe-Mn-Al-C steels,various microstructures can be produced and various me-chanical properties can be achieved by rationally designing alloying compositions and process parame-ters.In the new-generation lightweight,high-strength Fe-Mn-Al-C steels,microstructural evolution and deformation mechanisms possess many characteristics that differ from those in other steels,and several novel aspects in physical metallurgy are involved and require to be thoroughly researched.In this paper,recent progress on the role of alloying elements,the relationship between microstructures and mechani-cal properties,and deformation mechanisms was reviewed and the future directions of research are pro-posed.To provide a solid foundation for the development and applications of the new type of Fe-Mn-Al-C lightweight steels,alloy design,microstructural design and control,quantitative analysis of deformation mechanisms,and forming and service properties should be focused.
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维普
