薄带连铸取向硅钢的热轧孪生行为

doi:10.12068/j.issn.1005-3026.2022.02.005

东北大学学报（自然科学版） ›› 2022, Vol. 43 ›› Issue (2): 182-187.DOI: 10.12068/j.issn.1005-3026.2022.02.005

薄带连铸取向硅钢的热轧孪生行为

宋红宇，刘海涛，王国栋

(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)

修回日期:2021-05-20 接受日期:2021-05-20 发布日期:2022-02-28
通讯作者: 宋红宇
作者简介:宋红宇(1986-)，男，河北邢台人，东北大学讲师，博士；刘海涛(1981-)，男，山东沂水人，东北大学教授，博士生导师；王国栋(1942-)，男，辽宁大连人，东北大学教授，博士生导师，中国工程院院士.
基金资助:
国家自然科学基金青年基金资助项目(51804073)；中国博士后科学基金特别资助项目(2020T130082)；中国博士后科学基金一等资助项目(2018M630296)；中央高校基本科研业务费专项资金资助项目(N170703007).

Hot Rolling Twinning Behavior of Strip Casting Grain-Oriented Silicon Steel

SONG Hong-yu， LIU Hai-tao， WANG Guo-dong

State Key Laboratory of Rolling and Automation， Northeastern University， Shenyang 110819， China.

Revised:2021-05-20 Accepted:2021-05-20 Published:2022-02-28
Contact: SONG Hong-yu
About author:-
Supported by:
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摘要/Abstract

摘要： 薄带连铸流程下取向硅钢粗大λ晶粒(〈100〉//ND，normal direction)的“遗传”会导致磁性能恶化.为解决这一问题，针对取向硅钢的热轧孪生行为开展研究，结果表明:凝固组织粗大的取向硅钢在650℃热轧时可产生大量112〈111〉形变孪晶，这与具有高层错能的硅钢在较高温度下难以孪生变形的传统认知不同.热轧过程中复杂的应力状态降低了变形孪晶的取向依赖性，由于具有更高的储存能，孪晶界/孪晶界及孪晶界/晶界交叉点成为再结晶形核的优先位置，大大提高了常化过程中的再结晶率，受沿孪晶界应变分布及孪晶间距离的限制，沿孪晶界形核的再结晶晶粒通常呈“饼状”，最终形成以细小且取向漫散的再结晶晶粒为主的常化组织，消除了初始凝固组织中有害的粗大λ晶粒.

关键词: 薄带连铸；取向硅钢；孪生；显微组织；织构

Abstract: In strip casting grain-oriented silicon steels， the inheritance of coarse λ grains (〈100〉//ND， normal direction) can deteriorate their magnetic properties. To solve the problem， twinning behaviors in strip casting grain-oriented silicon steels during hot rolling were investigated in this work. It is found that after rolling at 650℃， a number of 112〈111〉deformation twins are formed in the coarse solidification microstructure of the steels， in contrast to the well-accepted view that it is difficult to trigger twinning at relatively high temperature in the grain-oriented silicon steels with high stacking-fault energy. The results indicate that the complex stress state during hot rolling may weaken the orientation dependence of deformation twinning. Due to higher stored energy， the intersections of twin/twin boundaries and twin/grain boundaries can act as the preferential nucleation sites for the recrystallized grains during normalizing annealing， leading to a significant increase of recrystallization rate. Because of the restriction from local strain partitioning and the limited size between the twins， the shape of new-formed recrystallized grains is mainly plate-shaped. Consequently， the fine grains with scattered orientations are formed in the normalized microstructure and the coarse λ grains in the solidification microstructure are eliminated.

Key words: strip casting； grain-oriented silicon steel； twinning； microstructure； texture

中图分类号:

TG132.1

宋红宇，刘海涛，王国栋. 薄带连铸取向硅钢的热轧孪生行为[J]. 东北大学学报（自然科学版）, 2022, 43(2): 182-187.

SONG Hong-yu， LIU Hai-tao， WANG Guo-dong. Hot Rolling Twinning Behavior of Strip Casting Grain-Oriented Silicon Steel[J]. Journal of Northeastern University(Natural Science), 2022, 43(2): 182-187.

参考文献

[1]何忠治，赵宇，罗海文.电工钢［M］.北京:冶金工业出版社，2012.(He Zhong-zhi，Zhao Yu，Luo Hai-wen.Electrical steels ［M］.Beijing:Metallurgical Industry Press，2012.)
[2]Matsuo M，Texture control in the production of grain oriented silicon steels ［J］.ISIJ International，1989，29(10):809-827.
[3]Maleki A，Taherizadeh A，Hosseini N.Twin roll casting of steels:an overview ［J］.ISIJ International，2017，57(1):1-14.
[4]Wang Y，Xu Y B，Zhang Y X，et al.Development of microstructure and texture in strip casting grain oriented silicon steel ［J］.Journal of Magnetism and Magnetic Materials，2015，379:161-166.
[5]Song H Y，Liu H T，Jonas J J，et al.Effect of primary recrystallization microstructure on abnormal growth of Goss grains in a twin-roll cast grain-oriented electrical steel ［J］.Materials and Design，2017，131:167-176.
[6]刘志桥，杨平，毛卫民，等.取向硅钢中114〈418〉织构对二次再结晶时晶粒异常长大的影响［J］.金属学报，2015，51(7):769-776.(Liu Zhi-qiao，Yang Ping，Mao Wei-min，et al.Effect of 114〈418〉 texture on abnormal growth during secondary recrystallization in grain-oriented steel ［J］.Acta Metallurgica Sinica，2015，51(7):769-776.)
[7]Park J Y，Oh K H，Ra H Y.The effects of superheating on texture and microstructure of Fe-4.5wt%Si steel strip by twin-roll strip casting ［J］.ISIJ International，2001，41(1):70-75.
[8]Strezov L，Herbertson J.Experimental studies of interfacial heat transfer and initial solidification pertinent to strip casting ［J］.ISIJ International，1998，38:959-966.
[9]Liu H，Liu Z，Li C，et al.Solidification structure and crystallographic texture of strip casting 3wt.% Si non-oriented silicon steel ［J］.Materials Characterization，2011，62(5):463-468.
[10]张雷，杨续跃，霍庆欢，等.AZ31镁合金板材低温双向反复弯曲变形及退火过程的组织演化［J］.金属学报，2011，47(8):990-996.(Zhang Lei，Yang Xu-yue，Huo Qing-huan，et al.Structure evolution of AZ31 Mg alloy sheet during bidirectional cyclic bending at low temperature and subsequent annealing ［J］.Acta Metallurgica Sinica，2011，47(8):990-996.)
[11]Sleeswyk A W.Twinning and the origin of cleavage nuclei in α-iron ［J］.Acta Metallurgica，1962，10:803-812.
[12]Sorbello F，Flewitt P E J，Smith G，et al.The role of deformation twins in brittle crack propagation in iron-silicon steel ［J］.Acta Materialia，2009，57:2646-2656.
[13]Mizuguchi T，Ikeda K，Karasawa N.Effects of temperature and strain rate on deformation twinning in Fe-Si alloy ［J］.ISIJ International，2015，55(7):1496-1501.
[14]Takenaka M，Fujita N，Hayakawa Y，et al.Unique effect of carbon addition on development of deformation texture through changes in slip activation and twin deformation in heavily cold-rolled Fe-3% Si alloys ［J］.Acta Materialia，2018，157:196-208.
[15]Mo Y，Zhang Z，Fu H，et al.Effects of deformation temperature on the microstructure，ordering and mechanical properties of Fe-6.5 wt% Si alloy with columnar grains ［J］.Materials and Science Engineering:A，2014，594:111-117.
[16]Xie J，Fu H，Zhang Z，et al.Deformation twinning in an Fe-6.5 wt.% Si alloy with columnar grains during intermediate temperature compression ［J］.Materials and Science Engineering:A，2012，538:315-319.
[17]Fu H，Zhang Z，Jiang Y，et al.Applying the grain orientation dependence of deformation twinning to improve the deformation properties of an Fe-6.5wt%Si alloy ［J］.Journal of Alloys and Componds，2016，689:307-312.
[18]Hull D.Twinning and fracture of single crystals of 3% silicon iron ［J］.Acta Metallurgica，1960，8:11-18.
[19]Clauer A H，Faifand B P，Wilcox B A.Pulsed laser induced deformation in an Fe-3 Wt Pct Si alloy ［J］.Metallurgical and Materials Transactions:A，1977，8:119-125.
[20]Meyers M A，Vhringer O，Lubarda V A.The onset of twinning in metals:a constitutive description ［J］.Acta Materialia，2001，49:4025-4039.
[21]El-Danaf E，Kalidindi S R，Doherty R D.Influence of grain size and stacking-fault energy on deformation twinning in fcc metals ［J］.Metallurgical and Materials Transactions:A，1999，30:1223-1233.

薄带连铸取向硅钢的热轧孪生行为

Hot Rolling Twinning Behavior of Strip Casting Grain-Oriented Silicon Steel

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