张存来,刘海涛,张元祥,曹光明,刘振宇

• 1:忻州职业技术学院
• 2:东北大学轧制技术及连轧自动化国家重点实验室

摘要(Abstract)：

以2.9%Si+0.7%Al无取向硅钢热轧板为初始材料,利用金相显微术、EBSD、XRD对比研究了常化处理/不常化处理对后续组织、织构演变以及磁性能的影响,分析了常化处理对各厚度层织构演变的影响。结果表明,常化处理改善了冷轧前组织的均匀性并弱化了热轧变形织构。与不常化处理相比,常化处理使最终成品板的晶粒尺寸增大,使各厚度层的γ纤维织构减弱、λ纤维织构增强,从而使磁性能得到明显改善。通过适当提高常化处理温度来增大晶粒尺寸,有助于成品板获得更大的晶粒尺寸,并在各厚度层形成更弱的γ纤维织构以及更强的Goss织构、λ纤维织构,使磁性能得到大幅改善。另外,发现在热轧、常化、冷轧、退火板的厚度方向上均存在明显的织构梯度。

关键词(KeyWords)： 无取向电工钢;常化;组织;织构;磁性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(50734001,51074051,51004035);; 中国博士后基金(20110491499);; 东北大学博士后基金

作者(Author): 张存来,刘海涛,张元祥,曹光明,刘振宇

DOI: 10.13289/j.issn.1009-6264.2012.10.013

参考文献(References)：

• [1]何忠治.电工钢[M].北京:冶金工业出版社.1996:413-444.
• [2]Premkumar R,Samajdar I,Viswanathana N N,et al.Relative effect(s)of texture and grain size on magnetic properties in a low silicon non-grainoriented electrical steel[J].Journal of Magnetism and Magnetic Materials,2003,264(1):75-85.
• [3]Paolinelli S C,Cunha M A.Development of a new generation of high permeability non-oriented silicon steels[J].Journal of Magnetism and MagneticMaterials,2006,304(2):e596-e598.
• [4]金自力,任慧平,李伟,等.热轧组织对冷轧无取向硅钢退火织构及组织的影响[J].材料热处理学报,2012,33(2):122-126.JIN Zi-li,REN Hui-ping,LI Wei,et al.Effect of thermomechanical treatment history upon annealing microstructure and texture of a cold rollednonoriented silicon steel[J].Transactions of Materials and Heat Treatment,2012,33(2):122-126.
• [5]Park J T,Szpunar J A.Evolution of recrystallization texture in nonoriented electrical steels[J].Acta Materialia,2003,51(11):3037-3051.
• [6]Duggan B J,Tse Y Y,Liu G L.Deformation banding and origins of rolling and annealing textures in low carbon and interstitial free steels[J].MaterialsScience and Technology,2010,26(4):404-409.
• [7]Nagataki Y,Hosoya Y.Origin of the recrystallization texture formation in an interstitial free steel[J].ISIJ International,1996,36(4):451-60.
• [8]Haratani T,Hutchinson B,Dillamore I L,et al.Contribution of shear banding to origin Goss texture in Silicon iron[J].Metal Science,1984,18(2):57-65.
• [9]Ushioda K,Hutchinson W B.Role of Shear bands in annealing texture formation in3%Si-Fe(111)[112].Single Crystals[J].ISIJ International,1989,29(10):862-867.
• [10]Paolinelli S C,Cunha M A,Cotab A B.The influence of shear bands on final structure and magnetic properties of3%Si non-oriented silicon steel[J].Journal of Magnetism and Magnetic Materials,2008,320(20):e641-e644.

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