普通取向硅钢组织及织构的演变特征
发布时间：2018-11-25 11:25
【摘要】：采用光学显微镜、EBSD观察并研究了普通取向硅钢组织、织构的演变特征。结果表明:热轧板组织及织构沿板厚方向存在不均匀性,一次冷轧后,组织发生了较大变化,完全转变为纤维带状条带组织。经840℃×10 min脱碳退火后初次再结晶晶粒平均尺寸为20.13μm,织构主要有{001}010、{111}112、以及Goss等织构,并可将碳脱至3.5×10-5以下。二次冷轧后,组织再次转变为纤维带状组织,织构类型与一次冷轧板织构类型类似,仅织构强度不同。经650℃×4 min回复时,冷轧组织发生了完全再结晶,再结晶晶粒平均尺寸为7.25μm。高温退火过程中,随着温度的升高,具有Goss位向的初次晶粒发生异常长大,温度到达1000℃时,晶粒尺寸达到厘米级,成品晶粒平均直径为18.92 mm,晶粒较为圆整,成品最佳磁感为1.885 T,铁损为1.21 W/kg。
[Abstract]:The microstructure and texture evolution characteristics of common oriented silicon steel were observed and studied by optical microscope and EBSD. The results show that the microstructure and texture of the hot rolled plate are not uniform along the thickness of the plate. After the first cold rolling, the microstructure of the hot rolled plate is changed greatly, and the structure is completely transformed into the fibrous strip structure. After decarbonization at 840 鈩，
本文编号：2355935
[Abstract]:The microstructure and texture evolution characteristics of common oriented silicon steel were observed and studied by optical microscope and EBSD. The results show that the microstructure and texture of the hot rolled plate are not uniform along the thickness of the plate. After the first cold rolling, the microstructure of the hot rolled plate is changed greatly, and the structure is completely transformed into the fibrous strip structure. After decarbonization at 840 鈩，
本文编号：2355935
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