冷轧工艺对取向硅钢初次再结晶织构的影响  

Effects of Cold-Rolling Process on Primary Recrystallization Texture of Grain Oriented Silicon Steel

作　　者：王洋[1] 许云波[1] 张元祥[1] 王国栋[1] 

机构地区：[1]东北大学轧制技术及连轧自动化国家重点实验室,辽宁沈阳110819

出　　处：《东北大学学报（自然科学版）》2014年第2期217-222,共6页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目(U1260204;51174059);国家重点基础研究发展计划项目(2011CB606306);中央高校基本科研业务费专项资金资助项目(N110407003)

摘　　要：研究了取向硅钢制备过程中常见的两种冷轧工艺，主要研究了一阶段冷轧与两阶段冷轧＋中间退火工艺对初次再结晶组织及织构的影响．结果表明：采用两阶段冷轧＋中间退火工艺制备以Cu2S为主抑制剂的取向硅钢，其初次再结晶平均晶粒尺寸为18．1μm，高斯晶粒的体积分数为0．6％，迁移性强的重位点阵晶界（∑5＋∑9）和高能晶界（20°-45°取向偏差角）所占比例分别为1．8％和50．4％．与一阶段冷轧工艺相比，其初次再结晶晶粒较细，且高斯晶核与特征晶界所占的比例较高，有利于高斯晶粒发生二次再结晶．Two common cold-rolling processes of grain oriented silicon steel and the effects of the single stage cold rolling and two-stage cold rolling with intermediate annealing processes on the primary recrystallization microstructure and texture were investigated. The results revealed that for the grain oriented silicon steel prepared under the two-stage cold rolling process with intermediate annealing with CuE S as the main inhibitor, the average grain size of the primary recrystallization microstructure was 18.1 μm, the volume fraction of Goss grain was 0. 6% , the ratio of coincidence site lattice （CSL, ∑ 5 ＋ ∑9 ）and high energy grain boundaries （20 ~ 45° misorientation angles ）which have the higher migration than the conventional boundaries were 1.8% and 50.4% , respectively. Compared with the single stage cold rolling process, the primary recrystallization grains of the two-stage cold rolling with intermediate annealing were finer; moreover, the proportion of Goss grain and high migration boundaries were larger, which were favorable to the secondary recrystallization occurrence of the Goss grain.

关 键 词：取向硅钢 冷轧工艺 初次再结晶 织构 晶界 

分 类 号：TG142[一般工业技术—材料科学与工程]