通过测定自制铝硅系耐候钢的连续冷却转变曲线，确定了应变诱导铁素体相变轧制工艺；采用该工艺对试验钢进行轧制，研究了轧制后的显微组织、力学性能以及在质量分数3.5% NaCl溶液中的耐腐蚀性能，并与SPA-H钢的进行了对比。结果表明：试验钢在0.5～25℃·s^-1冷速范围内只存在铁素体和珠光体转变区；热轧后的显微组织由单一铁素体组成，部分铁素体的晶粒尺寸小于3 μm；与SPA-H钢相比，试验钢具有更高的伸长率和更低的屈强比，且冲击韧性优良；在NaCl溶液中腐蚀后，试验钢表面锈层中存在多层致密铝、硅元素富集层，且表面锈层的耐腐蚀性能优于SPA-H钢表面锈层的，因此试验钢的耐氯离子腐蚀性能优于SPA-H钢的。

Strain induced ferrite transformation rolling process of a homemade aluminum-silicon weathering steel was determined by measuring its continuous cooling transformation curve and then was applied to the tested steel. The microstructure, mechanical properties and corrosion resistance of the rolled tested steel in 3.5wt% NaCl solution were studied and compared with those of SPA-H steel. The results show that only ferrite and pearlite transformation zones existed in the tested steel at cooling rates of 0.5-25℃·s^-1. After rolling, the microstructure consisted of single ferrite, and the grain size of some ferrite was less than 3 μm. Comparing with SPA-H steel, the tested steel had higher elongation and lower yield ratio; also the impact toughness was excellent. After corrosion in NaCl solution, multiple dense Al- and Si-enriched layers existed in the rust layer on surface of the tested steel, and the surface rust layer had better corrosion resistance than the surface rust layer of SPA-H steel had, so the resistance to chloride ion corrosion of the tested steel was better than that of SPA-H steel.