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Segregation on the metal and alloy surfaces

其他書名	final report
出版	Inštitut za kovinske materiale in tehnologije, 1999
URL	http://books.google.com.hk/books?id=HU4xNQAACAAJ&hl=&source=gbs_api

註釋Surface and interface structure and composition of FeSi steels can affect their material properties during the production process and can have a pronounced effect on their use as electrical magnetic steels. The primary aim of this project was to determine how selective segregation and surface texture development can affect the magnetic characteristics of nonoriented electrical steel sheets. We have investigated the mechanism and kinetics of segregation of silicon steels doped with surface active elements of Sb, SN and Se. On such segregated surfaces we have experimentally confirmed the reconstruction of magnetically hard (110) grains into magnetically soft (100) ones. The reconstruction process was found to be consistent with the lower surface energy of the (100) orientation enhanced by the segregated elements. The surface texture of such surface reconstructed steels has resulted in an improvement of their electrical/magnetic properties which can be very important for steels used in electrical motors and transformers.