含Cu取向硅钢中第二相粒子析出演变行为研究

使用场发射扫描电子显微镜（SEM)观察CGO硅钢制备过程中第二相粒子的析出行为及分布状态，统计粒子的平均尺寸、面密度及Zener因子。结果表明：试样中主要存在两种析出物，一种是（Cu，Mn)S复合析出物，尺寸为l^m左右，称为A类析出物，另一种是Cu2S析出物，尺寸为10.30nm，称为B类析出物，〇1123起主要抑制作用。第二相粒子在热轧阶段大量弥散析出，平均粒子尺寸最小，面密度最高，高温退火前的加工阶段，粒子的平均尺寸不断增加，面密度逐渐降低；高温退火过程中，随着析出物体积分数的降低，其抑制能力呈下降趋势，960°C时析出物发生明显的聚集现象，当Zener因子A低于临界值0.19nm1时，...

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Bibliographic Details
Published in材料工程 Vol. 45; no. 12; pp. 10 - 16
Main Author 李志超;党宁;江海涛;夏振海
Format Journal Article
LanguageChinese
Published 北京科技大学钢铁共性技术协同创新中心 ,北京,100083%北京科技大学冶金工程研究院,北京,100083%北德克萨斯州大学材料科学与工程学院 ,美国丹顿市76203 2017
Subjects
CGO硅钢;抑制剂;第二相粒子;析出
抑制剂
precipitation
inhibitor
析出
CGO硅钢
second phase particle
CGO silicon steel
第二相粒子
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ISSN1001-4381
1001-4381
DOI10.11868/j.issn.1001-4381.2016.000163

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Summary:使用场发射扫描电子显微镜（SEM)观察CGO硅钢制备过程中第二相粒子的析出行为及分布状态，统计粒子的平均尺寸、面密度及Zener因子。结果表明：试样中主要存在两种析出物，一种是（Cu，Mn)S复合析出物，尺寸为l^m左右，称为A类析出物，另一种是Cu2S析出物，尺寸为10.30nm，称为B类析出物，〇1123起主要抑制作用。第二相粒子在热轧阶段大量弥散析出，平均粒子尺寸最小，面密度最高，高温退火前的加工阶段，粒子的平均尺寸不断增加，面密度逐渐降低；高温退火过程中，随着析出物体积分数的降低，其抑制能力呈下降趋势，960°C时析出物发生明显的聚集现象，当Zener因子A低于临界值0.19nm1时，二次再结晶发生，残留的粒子不会产生有效的抑制作用。
Bibliography:11-1800/TB
CGO silicon steel ; inhibitor ; second phase particle ; precipitation
The precipitation behavior and distribution of second phase particles in conventional grain-o-riented silicon steel during manufacturing process were observed by field emission scanning electron microscopy,and the average particle size,the areal particle density,and the Zener factor were statisti-cally analyzed.The results show that the samples mainly contain two kinds of precipitates:A class is the(Cu,Mn)S composite precipitates with the average size of1/j.m;B class is the Cu2S precipitates with the size of10-30nm,the key inhibition effect is produced by Cu2S.Hot rolling leads to a large a-mount of fine second phase particles precipitation,which has the minimum average particle size and the highest areal density;in the manufacturing process before high temperature annealing,the average particle size is increasing and the areal density is decreasing;in the process of high temperature annea-ling,with the decrease of volume fraction
ISSN:1001-4381
1001-4381
DOI:10.11868/j.issn.1001-4381.2016.000163