退火温度及冷轧压下量对低碳铝镇静钢退火织构的影响

研究了退火温度及冷轧压下量对低碳铝镇静钢退火织构的影响。结果表明,在退火温度700 ℃、压下量70%时,γ织构明显增强;但压下率进一步增加,γ纤维织构反而减弱,并出现了较强的旋转立方织构。压下量70%和75%时,有利于深冲性能的{111}<110>织构和{112}<110>织构较强,而对冲压性能不利的旋转立方织构{100}<011>和高斯织构{011}<100>较少。压下量70%、退火温度700 ℃时,γ纤维织构大幅增强,冲压性能较好。

Effects of Annealing Temperature and Cold Rolling Reduction on Annealing Texture of Low-Carbon Al-Killed Steel

The effects of different annealing temperature and cold rolling reduction on the annealing texture of low carbon Al-killed steel were studied. The results show that rolling by 70% reduction and annealing at 700 ℃ can obviously enhance the γ fiber texture. But as the reduction rate further increases, the γ fiber texture becomes weakened and the rotated cubic texture becomes stronger. It is found that rolling by 70% and 75% reduction, the textures of {111}<110> and {112}<110> that are beneficial to the deep drawing become stronger, but there's less rotated cubic texture {100}<011> and Gauss texture {011}<100> that are unfavorable to the stamping property. It is concluded that annealing at 700 ℃ and rolling by 70% reduction,γ fiber texture is greatly enhanced and the stamping property is also improved.