Effect of lanthanum on recrystallization behavior of non-oriented silicon steel

Non-oriented silicon steels containing different mass fractions of lanthanum were prepared using a high-frequency suspended furnace.Microstructures were observed by a metallographic microscope and micro-orientations were analyzed by a scanning electron microscope（SEM）.The results showed that at the...

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Published inJournal of rare earths Vol. 35; no. 3; pp. 309 - 314
Main Author 师彩娟 金自力 任慧平 尤静林
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.03.2017
Subjects
lanthanum
non-oriented silicon steel
rare earths
recrystallization
non-oriented silicon steel
recrystallization
lanthanum
rare earths
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Summary:Non-oriented silicon steels containing different mass fractions of lanthanum were prepared using a high-frequency suspended furnace.Microstructures were observed by a metallographic microscope and micro-orientations were analyzed by a scanning electron microscope（SEM）.The results showed that at the annealing temperature of 870℃,recrystallization started at 90 s and completed at 120 s during annealing.Without lanthanum,no matter Cube or {111 }110 grains,recrystallized grains nucleated mainly in deformed {111}110 and {113}031 grains.With lanthanum,however,they nucleated in the deformed {110} and {112}132grains.This indicated that addition of lanthanum changed the micro-orientation relationship between new grains and the matrix.
Bibliography:11-2788/TF
non-oriented silicon steel; lanthanum; recrystallization; rare earths
SHI Caijuan , JIN Zili, REN Huiping , YOU Jinglin （1. State Key Laboratory of Advanced Special Steel, Shanghai Key Laboratory of Advanced Ferrometallurgy, School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China,＂ 2. Materfal and Metallurgy School, Inner Mongolia University of Science and Technology, Baotou 014010, China）
Non-oriented silicon steels containing different mass fractions of lanthanum were prepared using a high-frequency suspended furnace.Microstructures were observed by a metallographic microscope and micro-orientations were analyzed by a scanning electron microscope（SEM）.The results showed that at the annealing temperature of 870℃,recrystallization started at 90 s and completed at 120 s during annealing.Without lanthanum,no matter Cube or {111 }110 grains,recrystallized grains nucleated mainly in deformed {111}110 and {113}031 grains.With lanthanum,however,they nucleated in the deformed {110} and {112}132grains.This indicated that addition of lanthanum changed the micro-orientation relationship between new grains and the matrix.
ISSN:1002-0721
2509-4963
DOI:10.1016/S1002-0721(17)60914-1