TY - GEN
T1 - Characteristic microstructure and grain boundary motion in secondary recrystallization of Fe-3%Si alloys
AU - Suzuki, S.
AU - Takebayashi, S.
AU - Ushigami, Y.
PY - 2007
Y1 - 2007
N2 - The microstructure of Fe-3 mass% Si alloys before secondary recrystallization has been characterized by analyzing precipitates and grain boundary segregated elements, The samples used were mainly sheets of Fe-3%Si alloys containing manganese, sulfur, aluminum, nitrogen and tin, which were decarburized and annealed up to secondary recrystallization. Grain boundary segregation in primarily recrystallized samples was studied using Auger electron spectroscopy (AES), and precipitates were analyzed using transmission electron microscopy (TEM) with an energy dispersive X-ray spectrometer (EDX). AES spectra showed that tin and nitrogen were enriched on grain boundaries in the Fe-3 mass% Si alloys. TEM/EDX analysis showed that the morphology and distribution of the fine precipitates such as manganese sulfide and aluminum nitride were influenced by addition of tin. The characteristic structure formed by secondary recrystallization of grain oriented silicon steel is considered to be influenced by the fine precipitates and segregation of a small amount of elements, as the abnormal motion of grain boundaries of the silicon steel was correlated with the precipitation and segregation of the alloying elements.
AB - The microstructure of Fe-3 mass% Si alloys before secondary recrystallization has been characterized by analyzing precipitates and grain boundary segregated elements, The samples used were mainly sheets of Fe-3%Si alloys containing manganese, sulfur, aluminum, nitrogen and tin, which were decarburized and annealed up to secondary recrystallization. Grain boundary segregation in primarily recrystallized samples was studied using Auger electron spectroscopy (AES), and precipitates were analyzed using transmission electron microscopy (TEM) with an energy dispersive X-ray spectrometer (EDX). AES spectra showed that tin and nitrogen were enriched on grain boundaries in the Fe-3 mass% Si alloys. TEM/EDX analysis showed that the morphology and distribution of the fine precipitates such as manganese sulfide and aluminum nitride were influenced by addition of tin. The characteristic structure formed by secondary recrystallization of grain oriented silicon steel is considered to be influenced by the fine precipitates and segregation of a small amount of elements, as the abnormal motion of grain boundaries of the silicon steel was correlated with the precipitation and segregation of the alloying elements.
KW - Fe-Si alloys
KW - Grain boundary
KW - Microstructure
KW - Secondary recrystallization
UR - http://www.scopus.com/inward/record.url?scp=38349131697&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=38349131697&partnerID=8YFLogxK
U2 - 10.4028/0-87849-443-x.811
DO - 10.4028/0-87849-443-x.811
M3 - Conference contribution
AN - SCOPUS:38349131697
SN - 087849443X
SN - 9780878494439
T3 - Materials Science Forum
SP - 811
EP - 816
BT - Recrystallization and Grain Growth III - Proceedings of the Third International Conference on Recrystallization and Grain Growth, ReX and GG III
PB - Trans Tech Publications Ltd
T2 - 3rd International Conference on Recrystallization and Grain Growth, ReX GG III
Y2 - 10 June 2007 through 15 June 2007
ER -