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首页> 外文期刊>Journal of magnetism and magnetic materials >A novel ultra-low carbon grain oriented silicon steel produced by twin-roll strip casting
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A novel ultra-low carbon grain oriented silicon steel produced by twin-roll strip casting

机译：双辊薄带连铸生产的新型超低碳晶粒取向硅钢

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摘要

A novel ultra-low carbon grain oriented silicon steel was successfully produced by strip casting and two-stage cold rolling method. The microstructure, texture and precipitate evolution under different first cold rolling reduction were investigated. It was shown that the as-cast strip was mainly composed of equiaxed grains and characterized by very weak Goss texture ({110} < 001 >) and λ-fiber (< 001 > //ND). The coarse sulfides of size ～ 100 nm were precipitated at grain boundaries during strip casting, while nitrides remained in solution in the as-cast strip and the fine A1N particles of size ～20-50 nm, which were used as grain growth inhibitors, were formed in intermediate annealed sheet after first cold rolling. In addition, the suitable Goss nuclei for secondary recrystallization were also formed during intermediate annealing, which is totally different from the conventional process that the Goss nuclei originated in the subsurface layer of the hot rolled sheet Furthermore, the number of AIN inhibitors and the intensity of desirable Goss texture increased with increasing first cold rolling reduction. After secondary re-crystallization annealing, very large grains of size ～ 10-40 mm were formed and the final magnetic induction, B_8 was as high as 1.9 T.
机译：通过薄带连铸和两步冷轧法成功生产了一种新型的超低碳晶粒取向硅钢。研究了在不同的第一次冷轧压下率下的组织，织构和析出物的演变。结果表明，铸态钢带主要由等轴晶粒组成，并具有极弱的高斯织构（{110} <001>）和λ纤维（<001> // ND）特征。薄带铸造过程中，晶粒边界处析出了约100 nm的粗大硫化物，而铸态带钢中的溶液中仍保留有氮化物，而用作晶粒长大抑制剂的尺寸约20-50 nm的AlN细颗粒被溶解。第一次冷轧后在中间退火板中形成。此外，在中间退火过程中，还形成了适合二次重结晶的高斯核，这与高斯核起源于热轧薄板下层的常规方法完全不同。此外，AIN抑制剂的数量和强度随着第一次冷轧压下率的增加，所需的戈斯织构增加。经过二次重结晶退火后，形成了约10-40 mm的非常大的晶粒，最终的磁感应强度B_8高达1.9T。

著录项

  • 来源
    《Journal of magnetism and magnetic materials》 |2016年第12期|225-232|共8页
  • 作者

    Yang Wang; Yuan-Xiang Zhang; Xiang Lu; Feng Fang; Yun-Bo Xu; Guang-Ming Cao; Cheng-Gang Li; R.D.K. Misra; Guo-Dong Wang;

  • 作者单位

    State Key laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China;

    State Key laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China;

    State Key laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China;

    State Key laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China;

    State Key laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China;

    State Key laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China;

    State Key laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China;

    Laboratory for Excellence in Advanced Steel Research, Department of Metallurgical, Materials and Biomedical Engineering, University of Texas at El Paso, TX 79968, USA;

    State Key laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Strip casting; Grain oriented silicon steel; Cold rolling; Texture; Precipitates;

    机译：带钢铸造;晶粒取向硅钢;冷轧;质地;沉淀物;

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