简介：Bycalculatingtheelectronstructuresofthephasesthatphosphor,sulfurandalloyingelementsdissolvinginγ-Fe,thereasonwhyalloyingelementscanbringcenterlinesegregationincontinuouscastingslab(CCS)withnA,thenumberofelectronsonthestrongestcovalentbonds,andthestructureformationfactorSwereinvestigated,andanelectronstructuralcriteriontocontrolandtoeliminatethecenterlinesegregationwasadvanced.Basingonthis,theelectronstructuresofapartofrareearthphosphidesandsulfidesarecalculated,thephysicalmechanismthatrareearthelementscancontrolthesegregationofphosphorandsulfurisanalyzed,andthecriterioniswellverified.
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