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钢在A_(c1)温度以上(γ+K)二相区的超塑性交形过程中,在奥氏体内有M_3C型碳化物颗粒沉淀,其尺寸为60～100A。碳化物的沉淀影响超塑变形过程及超塑变形后钢的力学性能。
During the superplasticity of steel in the two-phase zone above the temperature of A_ (c1) (γ + K), there is precipitation of M_3C carbide particles in the austenite, with a size of 60-100A. Carbide precipitation affects the superplastic deformation process and the mechanical properties of the steel after the superplastic deformation.