退火工艺对无取向硅钢组织及织构的影响

Effect of annealing process on microstructure and texture of non-oriented silicon steel

退火是无取向硅钢热处理过程中关键工艺之一,退火加热速率、退火温度、保温时间、保护气氛和冷却速率均影响无取向硅钢组织、织构和析出相的形成与发展,故退火工艺是否合理,对无取向硅钢性能提升至关重要。本文对前人研究工作进行了归纳,总结了有关加热速率、退火温度和保温时间对无取向硅钢组织、织构产生的影响的研究成果,分析了退火工艺对无取向硅钢组织、织构及磁性能的影响,以期为高品质无取向硅钢产品开发提供参考。

Annealing is one of the key processes in heat treatment processes of non-oriented silicon steels.Some processing parameters of annealing,such as heating rate,annealing temperature,holding time,protective atmosphere and cooling rate,can be varied to affect the formation and evolution of non-oriented silicon steels’microstructure,texture and precipitated phase.Therefore,reasonable annealing process is very important to influence the properties of non-oriented silicon steels.Previous researches on annealing process of non-oriented silicon steels were summarized and analyzed in this paper,concerning the influences of heating rate,annealing temperature and holding time to non-oriented silicon steels’microstructure,texture and magnetic properties,which were aimed to support references to the manufacturing of high-quality non-oriented silicon steel.