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探讨了不同合金元素的双相钢（Ｆ＋Ｍ）经不同时效工艺处理后铁素体精细结构、显微组织变化及其对力学性能的影响。结果表明：双相钢低温时效（≤７０℃）后铁素体的显微硬度时效曲线有硬度峰，这是由于铁素体中淬火空位迁移，并且聚集成位错圈，构成点阵障碍。这种点阵缺陷阻碍了可动位错的滑移，造成了摩擦硬化。宏观力学性能上表现为硬度升高，σ＿ｂ、σ＿ｓ上升。
The effects of aging treatment on the microstructure and microstructure of ferrite and the effect on the mechanical properties of duplex stainless steel (F + M) with different alloying elements were investigated. The results show that the hardness curve of the microhardness of ferrite has a hardness peak after low temperature aging (≤70 ℃), which is due to the migration of quenching vacancies in ferrite and the aggregation of dislocation loops into lattice obstacles. This lattice defect hinders the slip of the movable dislocations, resulting in the friction hardening. Macroscopic mechanical properties of the performance of the hardness, σ_b, σ_s rise.