Abstract:The effect of different annealing methods and annealing processes on microstructure and mechanical property, corrosion resistance, for mabtlity of 12%Cr ferritic stainless steel was investigated in laboratory. The results show that ferrite will transit to austenite at high temperature and the austenite will transit to martensite by rapid cooling in 12%Cr ferritic stainless steel, so the annealing temperature has significant effect on the microstructure of material. Using the phase transition mechanism in hot annealing will refine the grain and increase the strength and hardness of the final product, while keep the corrosion resistance of the product unchanged. The product adopted this technology cab ne utilized in high-strength situations and has broken the tradition that only batch furnace annealing can be used after 12% Cr ferritic stainless steel hot rolling. Different annealing method and annealing process will be adopted according the application of final product.
马立 董文卜. 热处理工艺对12%Cr铁素体不锈钢组织性能的影响[J]. 中国冶金, 2014, 24(5): 25-29.
MA Li,DONG Wen-bo. Effect of Hot Treatment Process on Microstructure and Property of 12% Cr Ferritic Stainless Steel. China Metallurgy, 2014, 24(5): 25-29.