摘要
采用电子背散射衍射技术测定50SW1300冷轧无取向硅钢中不同尺寸范围晶粒的含量,利用主成分回归分析法,综合研究不同尺寸范围晶粒的含量对无取向硅钢磁性能的影响。结果表明:通过主成分回归分析法能够从不同尺寸范围晶粒的含量的多个影响因素中获取主要的因素,定量研究它们对无取向硅钢磁性能的影响规律。分析表明,无取向硅钢的铁损与不同尺寸范围晶粒的含量之间存在着可靠的多元线性关系,在一定范围内,较大尺寸晶粒的含量越多,其对铁损优化的作用越明显;而无取向硅钢的磁感与不同尺寸范围晶粒的含量之间并无线性关系。
Distribution of grain size in cold rolled non-oriented silicon steel 50SW1300 was measured by EBSD.The effects of the distribution of grain size on magnetic properties of the non-oriented silicon steel were comprehensively researched by means of principal component regression method.The results indicate that the main factors influencing the magnetic properties in the distribution of grain sizes,which can be used to guantitative study the magnetlic properies of the steel,are obtained by principal component regression analysis.It is found that multivariate linear relationship between core loss and the distribution of grain size is reliable.The core loss decreases with increasing the number of large grains in the specific limits.However,there is no linear relation between magnetic induction and the distribution of grain sizes.
出处
《材料热处理学报》
EI
CAS
CSCD
北大核心
2014年第11期215-218,共4页
Transactions of Materials and Heat Treatment
关键词
无取向硅钢
主成分回归分析
晶粒尺寸
铁损
磁感
non-oriented silicon steel
principal component regression analysis
grain size
core loss
magnetic induction
