【摘要】 利用光学显微镜、TEM和EBSD研究了退火温度对双辊连铸无取向硅钢再结晶组织的影响。结果表明,900℃退火后组织分布不均匀,有大量带状组织,平均晶粒尺寸29.5μm。提高退火温度,晶粒尺寸增大,组织均匀化程度增加,1050℃退火时,带状组织基本消失,平均晶粒尺寸42.2μm。
【Abstract】 Effect of annealing temperature on recrystallization microstructure of non-oriented electrical steel produced by twin-roll casting process was investigated using OM,TEM and EBSD.The results show that the recrystallization microstructure is uneven because of many banded grains existing,average grain size is 29.5 μm.With annealing temperature increasing,the recrystallization grain size increases,microstructure becomes more homogeneous.When 1050 ℃ annealing,the banded structure almost disappear and…
【关键词】 无取向硅钢;
双辊连铸;
退火温度;
组织;
【Key words】 non-oriented electrical steels;
twin-roll casting;
annealing temperature;
microstructure;
双辊连铸;
退火温度;
组织;
【Key words】 non-oriented electrical steels;
twin-roll casting;
annealing temperature;
microstructure;
【基金】 国家自然科学基金(50734001和51004035)
原文发表于《金属热处理》2013年第03期
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