热轧工艺对含铌取向硅钢二次冷轧中织构的影响  

Effect of hot rolling process on texture of Nb-contained grain-oriented silicon steel after double cold rolling

作　　者：李杰 王凯琳 宁江利 宋卓斐 冯运莉 

机构地区：[1]华北理工大学冶金与能源学院现代冶金技术教育部重点实验室

出　　处：《金属热处理》2018年第2期137-143,共7页Heat Treatment of Metals

基　　金：国家自然科学基金(51274083,51674123);河北省自然科学基金(E2015209228);河北省高等学校创新团队领军人才培育计划(LJRC007);河北省教育厅项目(ZD2016019)

摘　　要：对不同板坯加热温度的含铌取向硅钢热轧板进行二次冷轧,通过EBSD等手段研究不同板坯加热温度的热轧板在二次冷轧后的织构演变规律。结果表明：不同板坯温度热轧板经中间退火后进行二次冷轧处理后,获得的组织晶粒显著细化,二次冷轧平均晶粒尺寸为13μm,二次冷轧后获得的{111}〈112〉织构强度与板坯加热温度呈负相关,当板坯加热温度由1170℃增至1220℃,二次冷轧中{111}〈112〉织构强度下降27%。Effect of slab heating temperature on texture evolution of Nb-contained grain-oriented silicon steel plate prepared by double coldrolling method were studied by means of EBSD and other research methods. The results show that the grain size of the hot rolled plate withdifferent slab heating temperatures was refined obviously in the double cold-rolled microstrueture and the average grain size is 13 μm. Thetexture intensity of { 111 t 〈 112 〉 in the double cold-rolled plates decreases with the increase of slab heating temperature, and the textureintensity of / 111 t 〈 112 〉 decreases by 27% when the slab heating temperature is increased from 1170 ℃ to 1220 ℃.

关 键 词：取向硅钢 热轧温度 二次冷轧 织构演变 

分 类 号：TG335[金属学及工艺—金属压力加工]