研究了铜对含铜低碳铝镇静钢再结晶织构的影响,含铜量为0—0.355％,试样为1.0毫米厚的冷轧薄板。采用X射线极点密度测量、塑性应变比测量及金相腐蚀坑方法,证明随含铜量的增加,对深冲性能有利的{111}织构组元增强,尤其当含铜量超过固溶度时更为显著。在含铜0.355％的样品中,用透射电子显微镜观察到细小的ε-Cu相在位错线附近析出。ε-Cu相的析出被认为是{111}织构增强的原因。 The effect of copper on recrystallization texture of copper-containing low carbon aluminum killed steel was studied. The copper content was 0-0.355% and the sample was 1.0 mm thick cold-rolled sheet. X-ray pole density measurement, plastic strain ratio measurement and metallographic etching pit method show that with the increase of copper content, {111} textured elements that are favorable to deep drawing performance are enhanced, especially when the copper content exceeds the solid solubility When more pronounced. In a sample containing 0.355% Cu, a fine ε-Cu phase was observed near the dislocation line by a transmission electron microscope. The precipitation of the ε-Cu phase is thought to be the cause of the {111} texture enhancement.