研究了取向硅钢在初次再结晶过程中的组织和结构变化,包括晶粒长大情况、取向差、重合位置点阵(CSL)及织构的变化.研究表明,820℃盐浴再结晶退火3 s时即完成再结晶,随即发生晶粒长大.在初次再结晶的开始阶段,主要织构是{111}<112>、{100}<110>和弱的高斯织构;随着退火时间增加,{100}<110>织构和高斯织构逐渐减弱,{111}<112>织构先增强后减弱,并向{111}<110>和{111}<231>转化,退火3 min以后出现的{012}<001>织构是一种促进二次再结晶发展并最终有利于提高二次再结晶磁感和降低铁损的织构.退火时间增加到3 min以后,CSL的∑3晶界比例增加.退火时间增加到30 min时,CSL的∑1晶界比例增加,同时,小角度晶界比例提高,大角度晶界减少.
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