304、316L和2205不锈钢具有良好的耐腐蚀性能，但其屈服强度、屈强比较低造成了材料较大浪费，组织纳米化可大幅提高此类金属强度但塑性损失较大，组织的微纳设计有望实现高强度和高塑性兼备同时可望发展出此类金属新的高强高塑强化方法和理论，但由于材料制备困难等原因对微纳结构不锈钢研究还很欠缺。本项目以具有较好应用前景的铝热法制备微纳结构304、316L和2205不锈钢，研究轧制温度、变形量和退火制度对微纳组织、拉伸力学性能、变形和失效机制和腐蚀性能的影响及作用机制，揭示轧制参数与不锈钢微纳组织的关系及其演化物理机制，微纳组织与不锈钢性能的关系和物理、化学作用机制，建立微纳组织与性能的轧制参数调控方法和理论；获得拉伸强度大于1200MPa、屈服强度大于850MPa，延伸率大于25%和良好腐蚀性能的微纳结构304、316L和2205不锈钢微纳组织设计、制备方法和强化理论。

304, 316L and 2205 stainless steels have excellent corrosion resistance but their low yield strength and ratio of yield to ultra strength results low using efficiency of raw materials. Their strength can be improved a lot but the ductility is decreased much by nanostructure. The steels with nano/microstructure will have high strength and ductility and a new strengthen method and theory are expected. But researches are hampered owing to difficult in their fabrications. In this research, the steels with nano/microstructure phase will be prepared by an aluminthermic reaction. Effects of rolling temperature and deformation extent and followed annealing process to features of the nano/microstructure and the steels tensile properties and deformation and fracture mechanism will be investigated in details. The nano/microstructure developing mechanisms in the rolling as well as tailoring method of the nano/microstructure and properties will be constructed. Finally, the nano/micro microstructure designing and strengthening theory, fabrication method for the 304, 316L and 2205 steels whose tensile strength is higher than 1200 MPa, yield strength is larger than 900MPa and tensile elongation is higher than 25% without loss of corrosion resistance will be given.