期刊
ACTA METALLURGICA SINICA-ENGLISH LETTERS
卷 28, 期 11, 页码 1394-1402出版社
CHINESE ACAD SCIENCES, INST METAL RESEARCH
DOI: 10.1007/s40195-015-0338-1
关键词
Strip casting; Grain-oriented high silicon steel; Microstructure; Texture
资金
- National Natural Science Foundation of China [51174059, 51404155, U1260204]
- Fundamental Research Funds for Central Universities [N130407003]
- Program for New Century Excellent Talents in University [NCET-13-0111]
- Program for Liaoning Excellent Talents in University [LR2014007]
Grain-oriented 4.5 wt% Si and 6.5 wt% Si steels were produced by strip casting, warm rolling, cold rolling, primary annealing, and secondary annealing. Goss grains were sufficiently developed and covered the entire surface of the secondary recrystallized sheets. The microstructure and texture was characterized by OM, EBSD, TEM, and XRD. It was observed that after rolling at 700 degrees C, the 6.5 wt% Si steel exhibited a considerable degree of shear bands, whereas the 4.5 wt% Si steel indicated their rare presence. After primary annealing, completely equiaxed grains showing strong gamma-fiber texture were presented in both alloys. By comparison, the 6.5 wt% Si steel showed smaller grain size and few favorable Goss grains. Additionally, a higher density of fine precipitates were exhibited in the 6.5 wt% Si steel, leading to a similar to 30-s delay in primary recrystallization. During secondary annealing, abnormal grain growth of the 6.5 wt% Si steel occurred at higher temperature compared to the 4.5 wt% Si steel, and the final grain size of the 6.5 wt% Si steel was greater. The magnetic induction B-8 of the 4.5 wt% Si and the 6.5 wt% Si steels was 1.75 and 1.76 T, respectively, and the high-frequency core losses were significantly improved in comparison with the non-oriented high silicon steel.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据