初次再结晶退火对模拟CSP含Cu Hi-B硅钢组织和织构的影响  

Effect of Primary Recrystallization Annealing on Structure and Texture of Cu-Bearing Hi-B Silicon Steel Produced by Simulating CSP Process

作　　者：黄明柱 赵刚[1] 曹靖威 胡致铨 陈佳丽[1] 李海龙[1] 肖欢[1] 

机构地区：[1]武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,武汉430081

出　　处：《特殊钢》2016年第4期58-60,共3页Special Steel

基　　金：2012年国家自然科学基金项目(51274155);2015湖北省大学生创新创业训练计划项目(201510488020)资助

摘　　要：在实验室用模拟CSP工艺试制Hi-B高磁感取向硅钢薄板（/%：0.07C,3.02Si,0.13Mn,0.020P,0.006S,0.21Cu,0.025Cr,0.016A1,0.004Sn）,该钢经25 kg真空感应炉熔炼,铸成41 mm×120 mm板坯-热轧成2mm板-1 120℃常化-冷轧成0.27 mm薄板。研究了830~870℃,3~7 min退火对再结晶组织和织构的影响。结果表明,0.27 mm含Cu Hi-B高磁感取向硅钢板的合适退火工艺为830℃5 min,其平均晶粒尺寸为15.6μm,不利织构{111}〈110〉和{001}〈110〉含量较低,有利织构{111}〈112〉分布合理,有利于在二次再结晶退火过程形成良好的高斯组织。The sheet of Hi-B high magnetic induction oriented silicon steel （/%： 0. 07C, 3.02Si, 0. 13Mn, 0. 020P, 0. 006S, 0. 21Cu, 0. 025Cr, 0. 016Al, 0. 004Sn） is produced by simulating CSP process in laboratory, the steel is melted by a 25 kg vacuum induction furnace, cast to 41 mm × 120 mm slab, hot-rolled to 2 mm plate, normalized at 1 120 ℃ and cold rolled to 0. 27 mm sheet. The effect of annealing at 830 - 870 ℃ for 3 - 7 rain on recrystallized structure and texture of steel has been studied. Results show that the suitable annealing process for 0. 27 mm sheet of Cu-bearing Hi- B high magnetic induction oriented silicon steel is at 850 ℃ for 5min, its average grain size is 15.6 μm, the relative level of adverse texture { 111 }〈 110 〉 and { 001 } 〈 111 〉 is lower and the distribution of favorable texture { 111 } 〈 112 〉 is reasonable that is available to form favorable Goss texture in secondary recrystallization annealing process.

关 键 词：含Cu Hi-B高磁感取向硅钢 模拟CSP工艺 初次再结晶退火 组织 织构 

分 类 号：TG142.1[一般工业技术—材料科学与工程] TG156.2[金属学及工艺—金属材料]