304 stainless steels were prepared by aluminothermic reaction method; first steels are annealed at 1000°C and then rolled at 700°C for different deformation. The microstructures evolution and mechanical properties were distinguished in details. It was found that the steel contains nanocrystalline/submicrocrystalline/microcrystalline austenite and submicrocrystalline ferrite. After rolling to a thickness reduction of 30%, 50%, and 70%, the mechanical properties of the rolled steels were substantially increased, as the deformation increased from 30% to 50%, the tensile strength increased from 650 to 1110 MPa, the yield strength increased from 400 to 665 MPa, and the elongation increased from 8% to 8.5%.

通过铝热反应法制备304不锈钢；首先将钢在1000°C退火，然后在700°C轧制以产生不同的变形。细化了组织的演变和力学性能。发现该钢包含纳米晶/亚微晶/微晶奥氏体和亚微晶铁素体。轧制至厚度减少30％，50％和70％后，轧制钢的机械性能显着提高，随着变形从30％增加到50％，抗拉强度从650 MPa增加到1110 MPa，屈服强度从400 MPa增加到665 MPa，伸长率从8％增加到8.5％。