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材料工程  2017, Vol. 45 Issue (11): 108-114    DOI: 10.11868/j.issn.1001-4381.2016.001535
  研究论文 本期目录 | 过刊浏览 | 高级检索 |
3% Si电工钢铸坯中柱状晶的形变、再结晶行为及织构演变规律
邵媛媛1, 郭琪2
1. 辽宁科技大学 应用技术学院, 辽宁 鞍山 114016;
2. 鞍钢股份公司 冷轧硅钢厂, 辽宁 鞍山 114021
Behaviors of Deformation, Recrystallization and Textures Evolution of Columnar Grains in 3%Si Electrical Steel Slabs
SHAO Yuan-yuan1, GUO Qi2
1. School of Applied Technology, University of Science and Technology Liaoning, Anshan 114016, Liaoning, China;
2. Cold Rolling Silicon Plant, Anshan Steel Co., Ltd., Anshan 114021, Liaoning, China
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摘要 利用电子背散射衍射(EBSD)技术和X射线衍射仪(XRD)研究3%(质量分数) Si电工钢铸坯中柱状晶的形变、再结晶行为及织构演变规律。结果表明:柱状晶长轴分别沿轧向、横向和法向放置,具有不同的初始织构。热轧后,表层形成的3种剪切取向中高斯取向较容易形成。中心区,RD样品中的αγ线轧制取向,TD样品中的强γ线取向,ND样品中的强{100}取向以及各样品中的立方取向,均表现出明显的初始取向依赖性。冷轧后,RD,TD样品中的强{111}〈112〉取向来自热轧板中的高斯取向,ND样品中的强旋转立方取向遗传自初始{100}取向。受初始取向偏差及大晶粒尺寸影响,ND样品中的旋转立方取向晶粒内取向梯度较大。退火后,样品中心大尺寸的{100}取向晶粒是柱状晶初始取向遗传性的表现。
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邵媛媛
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关键词 电工钢柱状晶织构取向    
Abstract:The behaviors of deformation and recrystallization and textures evolution of 3% (mass fraction) Si columnar-grained electrical steel slabs were investigated by electron backscatter diffractometer technique and X-ray diffraction. The results indicate that the three columnar-grained samples have different initial textures with the long axes arranged along rolling, transverse and normal directions. Three shear orientations can be obtained in surface layer after hot rolling, of which Goss orientation is formed easily. The α and γ fibre rolling orientations are obtained in RD sample, while strong γ fibre orientations in TD sample and sharp {100} orientations in ND sample are developed respectively. In addition, cube orientation can be found in all the three samples. The characteristics of hot rolled orientations in center region reveal distinct dependence on initial columnar-grained orientations. Strong {111}〈112〉 orientation in RD and TD samples separately comes from Goss orientation of hot rolled sheets, and sharp rotated cube orientation in ND sample originates from the initial {100} orientation of hot rolled sheets after cold rolling. Influenced by initial deviated orientations and coarse grain size, large orientation gradient of rotated cube oriented grain can be observed in ND sample. The coarse {100} orientated grains of center region in the annealed sheets show the heredity of the initial columnar-grained orientations.
Key wordselectrical steel    columnar grain    texture    orientation
收稿日期: 2016-12-23      出版日期: 2017-11-18
中图分类号:  TG142.33  
  TG115  
通讯作者: 邵媛媛(1980-),女,博士,现主要从事金属材料成型及控制方面的研究,联系地址:辽宁省鞍山市千山区达道湾镇职教城9号楼辽宁科技大学应用技术学院B106室(114016),E-mail:shaoyy1980@163.com     E-mail: shaoyy1980@163.com
引用本文:   
邵媛媛, 郭琪. 3% Si电工钢铸坯中柱状晶的形变、再结晶行为及织构演变规律[J]. 材料工程, 2017, 45(11): 108-114.
SHAO Yuan-yuan, GUO Qi. Behaviors of Deformation, Recrystallization and Textures Evolution of Columnar Grains in 3%Si Electrical Steel Slabs. Journal of Materials Engineering, 2017, 45(11): 108-114.
链接本文:  
http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2016.001535      或      http://jme.biam.ac.cn/CN/Y2017/V45/I11/108
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