21%Cr铁素体不锈钢成型性能和表面起皱研究

以21%Cr铁素体不锈钢为研究对象,研究了热轧退火及冷轧润滑对带钢中织构和晶粒簇的影响.结果表明:热轧退火再结晶不完全时,成品带钢中心处的晶粒簇明显,且带钢厚度方向上织构梯度很大,使得带钢在成型过程中表面起皱和各向异性明显;冷轧过程不进行润滑时,与采用冷轧润滑的成品带钢相比,带钢厚度方向上的织构梯度增加,γ纤维织构的强度降低,使得带钢的成型性能恶化;当热轧退火使带钢发生完全再结晶,并在冷轧过程中进行充分润滑时,则可使成品带钢同时获得较好的成型性能和抗表面起皱性能.

Study on the Formability and Surface Ridging of a 21%Cr Ferritic Stainless Steel

The effects of annealing after hot rolling and lubrication during cold rolling on the texture and grain colonies of a 21%Cr ferritic stainless steel were investigated.The results revealed that the grain colonies are obvious at the central layer of the final sheet with incomplete recrystallization during hot rolling and annealing,which having the high through-thickness texture gradient,thus causing the severe surface ridging and planar anisotropy in its forming process.And the through-thickness texture gradi...