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根据柱状晶<001>取向的遗传性,以柱状晶铸坯为初始材料,采用XRD与EBSD技术揭示柱状晶在热轧、冷轧及退火过程中组织及织构的演变规律,测定对应的磁性能。结果表明:在3种不同工艺下,样品最终铁损P1.5均低于2.50 W/kg,磁感B50均大于1.73 T,最高磁感值达1.78 T。样品中均以对磁性能有利的强{001}织构为主,对磁性能不利的g纤维织构被抑制。结果体现了利用柱状晶制备低铁损、高磁感无取向硅钢的优势。
According to the inheritance of columnar crystal orientation, columnar crystal billet was used as starting material. The evolution of columnar crystal structure and texture during hot rolling, cold rolling and annealing was revealed by XRD and EBSD. The corresponding magnetic can. The results show that the final iron loss P1.5 is less than 2.50 W / kg, the magnetic induction B50 is greater than 1.73 T and the highest magnetic induction is 1.78 T under the three different processes. In the samples, the strong {001} texture, which is favorable to the magnetic properties, is dominant, and the g-fiber texture, which is unfavorable to the magnetic properties, is suppressed. The results show the advantages of using columnar crystals to prepare low-iron loss, high magnetic induction non-oriented silicon steel.