采用蔡司显微镜、X射线衍射仪等检测手段分析Si含量为3.1%的取向硅钢在生产各个阶段(一次冷轧、脱碳退火、二次冷轧、高温退火、拉伸平整退火)的组织形貌和宏观织构。结果表明, Si含量为3.1%的普通级取向硅钢显微组织类型为铁素体, 经脱碳退火初次再结晶后平均晶粒尺寸为10.23 μm, 经高温退火二次再结晶后晶粒尺寸达到2.0 cm, 经拉伸平整退火后取向硅钢的平均晶粒尺寸为2.3 cm, 且均匀性提高。在脱碳退火阶段完成初次再结晶后的织构类型以γ织构为主, 有一部分高斯织构{110}< 001> , 经高温退火二次再结晶后织构类型以高斯织构{110}< 001> 为主, 经拉伸平整退火后, 高斯织构达到最强最锋锐的程度。
Abstract
Microstructure and macroscopic textures of 3.1%Si oriented silicon steel during first cold rolling, decarburizing annealing, second cold rolling, high temperature annealing and tensile leveling annealing were analyzed by means of Zeiss microscope, X-ray diffractometer and other testing instruments. The results show that microstructure of the oriented silicon steel is ferrite. The average grain size is 10.23 μm after first recrystallization during decarburizing annealing, and reaches 2.0 cm after second recrystallization during high temperature annealing, and grows to 2.3 cm with increasing of uniformity after tensile leveling annealing. The main texture type of the oriented silicon steel after decarburization annealing is γ fiber texture, with a small amount of Goss texture {110}< 001> . After high temperature annealing, the texture type is mainly Goss texture {110}< 001> . After tensile leveling annealing, the Goss texture reaches the strongest and sharpest degree.
关键词
取向硅钢 /
显微组织 /
织构 /
脱碳退火 /
高温退火
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Key words
oriented silicon steel /
microstructure /
texture /
decarburizing annealing /
high temperature annealing
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参考文献
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脚注
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基金
内蒙古自治区自然科学基金(2020MS05046); 内蒙古自治区科技计划(2021GG0047)
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