Abstract：Abstract：The mechanical properties of forged 0.15C5Mn steel and 0.15C5Mn2Al steel at room temperature and 750℃ under quasistatic tensile conditions were compared. The microstructures were characterized by scanning electron microscopy and electron backscattered diffraction. The results show that the addition of Al causes a difference in the microstructure at room temperature. There is a small amount of ferrite in the structure of aluminumcontaining steel at room temperature,which results in low strength of aluminumcontaining steel. An elongation of 90.5% and 101% was obtained in forged 0.15C5Mn steel and 0.15C5Mn2Al steel at 750℃,respectively. After 750℃ tensile deformation,the 0.15C5Mn steel obtained a martensitic structure. The addition of the Al element expanded the dual phase region and made the 0.15C5Mn2Al steel have tensile deformation in the dual phase zone,which results in the dual phase structure of ferrite + martensite. The deformation in the dual phase zone makes the 0.15C5Mn2Al steel have a higher elongation and lower tensile strength.
刘思涵，王存宇，王昌，徐海峰，曹文全. Al对锻态中锰钢组织与性能的影响[J]. 钢铁研究学报, 2020, 32(12): 1141-1147.
LIU Sihan,WANG Cunyu,WANG Chang,XU Haifeng,CAO Wenquan. Effect of Al on microstructure and properties of forged medium manganese steel. JOURNAL OF IRON AND STEEL RESEARCH , 2020, 32(12): 1141-1147.
2020, Vol. 32 
