【摘要】 分析了冷轧压下率对Fe-1.5%Si无取向硅钢各工艺阶段组织与织构的影响规律。结果表明，热轧板初始组织为细小的等轴晶，表层平均晶粒尺寸为18μm,中间层平均晶粒尺寸为36μm。热轧板经25%～64%压下率冷轧时具有强α、λ织构和弱α~*织构，经64%～73%压下率冷轧后形成强γ织构、次强α织构。冷轧织构主要沿4条路径转动：(1)Cube织构沿λ织构转动至{100}<021>后沿α~*织构线转动；(2)Cube织构沿λ织构转动至{100}<011>后沿α织构线转动；(3)Cube织构沿{013}<031>、{110}<110>及其附近取向转动；(4)Cube织构沿η织构线转动。退火初期Cube、Goss取向晶粒优先形核，但随着退火时间的延长，其占比始终较小，Cube再结晶比例为0.55%～1.94%,Goss再结晶比例为0.54%～2.85%,γ取向晶粒占比快速提高。最终退火后板材发生了完全再结晶，再结晶织构主要以强γ织构、α织构和弱η织构组成，不利织构占主要组分。更多还原

【Abstract】 The influence of cold rolling reduction rate on microstructure and texture of Fe-1.5%Si non-oriented silicon steel at each process stage was analyzed. The results show that the initial structure of the hot-rolled plate is fine equiaxed crystal. The average grain size is 18 μm in the surface layer and 36 μm in the middle layer. After cold rolling at reduction rates of 25%-64%, the plate forms strong α and λ texture and weak α~* texture. After cold rolling at reduction rates of 64%-73%, the plate forms strong γ and sub-strong α texture. The cold-rolled Cube texture mainly rotates along four paths:(1) rotating along the λ texture to {100}<021> and then along the α~* texture line;(2) rotating along the λ texture to {100}<011> then along the α texture line;(3) rotating along {013}<031>, {110}<110> and nearby orientations;(4) rotating along the η texture line. In the early stage of annealing, Cube and Goss-oriented grains are preferentially nucleated, but with the extension of annealing time, their proportions are always small, the Cube recrystallization ratio is 0.55%-1.94%, and the Goss recrystallization ratio is 0.54%-2.85%, and the proportion of γ-oriented grains increases rapidly. After annealing, complete recrystallization occurs, and the recrystallization texture is mainly composed of strong γ texture, α texture and weak η texture. Unfavorable textures account for the main component.更多还原