河北科技大学学报2026，Vol.47Issue(1)：1-11,11.DOI:10.7535/hbkd.2026yx01001
常化工艺对W470无取向硅钢组织和织构的影响
Effect of normalization process on microstructure and texture of W470 non-oriented silicon steel
摘要
Abstract
To address the issue of significant deformed microstructures and undesirable textures in as-hot-rolled W470 non-oriented silicon steel sheets produced without mold electromagnetic stirring,electron backscattered diffraction(EBSD)was employed to systematically investigate the effects of normalization process parameters on the recrystallization behavior,grain size,and texture evolution.The results reveal that the center layer of the W470 as-hot-rolled sheet retains a substantial fraction of non-recrystallized microstructure.For different normalizing temperatures,the recrystallization fraction in the center layer increases progressively with rising normalization temperature from 840℃ to 960℃,achieving completeness at 930℃.For different normalizing temperatures,at a constant temperature of 900℃,extending the holding time from 1 to 9 min leads to gradual recrystallization,with full recrystallization attained after 7 min.The normalized sheets exhibit a surface layer dominated by{110}<110>and{114}<110>textures.In contrast,the center layer is characterized by a combination of γ-fiber texture,copper texture({112}<111>),and rotated cube texture.Both increasing the normalization temperature and prolonging the holding time enhance the recrystallization fraction and concurrently weaken the intensity of the magnetically unfavorable γ-fiber texture.This work elucidates the synergistic influence of normalization temperature and holding time on the microstructure and texture development of W470 non-oriented silicon steel produced under conditions of lacking mold electromagnetic stirring,which provides some reference for achieving optimized microstructures and textures.关键词
金属学/无取向硅钢/常化工艺/再结晶/组织/织构Key words
physical metallurgy/non-oriented silicon steel/normalization process/recrystallization/microstructure/texture分类
信息技术与安全科学引用本文复制引用
郑亚旭,王坤,高晗,张觉灵,李永亮,吕皓杰,牛崇宇..常化工艺对W470无取向硅钢组织和织构的影响[J].河北科技大学学报,2026,47(1):1-11,11.基金项目
国家自然科学基金(52204341,52174311) （52204341,52174311）
中国博士后科学基金(2023M740415) （2023M740415）
河北省自然科学基金(E2024208002) （E2024208002）
