中文摘要：

采用宏微观织构分析相结合的方法,研究了轧制温度对双辊铸轧Fe-2.8%Si-0.8%Al硅钢形变与再结晶织构的影响。室温和200℃轧制样品形变织构均由α（〈110〉∥RD）、γ（〈111〉∥ND）和λ（〈001〉∥ND）纤维织构组成,但200℃轧制显著减弱α、λ形变织构,增强γ形变织构特别是1/4层的{111}〈110〉织构。200℃轧制时,剪切带数量增多、储能增强,从而促进了Goss（{110}〈001〉）、Cube（{001}〈100〉）再结晶晶粒分别在γ和{111}〈110〉形变基体剪切带的大量形核,γ再结晶晶粒在晶界少量形核以及Goss和Cube再结晶晶粒的增多,有效抑制了γ织构。λ织构的变化由Cube和{001}〈110〉的变化共同决定,在1/4层,Cube织构显著增强导致λ织构的增强;在中心层,Cube略微增强而{001}〈110〉显著减弱导致λ织构的减弱。

英文摘要：

The twin-roll cast Fe-2.8%Si-0.8%Al strips were cold rolled at room temperature and 200 ℃,respectively,and annealed to investigate the effect of rolling temperature on deformation and recrystallization texture by macro-and micro-texture analysis.Deformation textures are both composed ofα,γandλfibers under the two rolling temperatures,but rolling at 200 ℃ reducesαandλfibers while increasesγfiber especially {111}〈110〉component at quarter layer.Recrystallization textures for the two rolling temperatures consist of Goss,λandγ.Relative to the room temperature rolling,the rolling at 200℃ promotes the nucleation of Goss and Cube grains at shear bands,whereas weakens nucleation ofγgrain at grain boundaries.Moreover,the recrystallizationλfiber is enhanced at quarter layer by the increase of Cube and weakened at center layer due to the reduction of{001}〈110〉,respectively.