Fast and simple method for Goss texture evaluation by neutron diffraction

6th European Conference on Neutron Scattering

Kucerakova, M.^1,2 ; Kolaik, K.^1 ; apek, J.^1 ; Vratislav, S.^1 ; Kalvoda, L.^1

Department of Solid State Engineering, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Trojanova 13, Prague 2

120 00, Czech Republic^1

CTU in Prague, FNSPE, Brehova 7, Prague 1

11519, Czech Republic^2

关键词: Coarse grain size;    Electric steel sheets;    Fabrication Technologies;    Grain oriented;    Low power loss;    Magnetic characteristic;    Power distribution transformer;    Texture analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/746/1/012043/pdf
DOI  :  10.1088/1742-6596/746/1/012043

来源: IOP

【 摘 要 】

Requirement of low power losses is one of the crucial demands laid on properties of electric steel sheets used in construction of various magnetic circuits. For cold-rolled grain- oriented (CRGO) Fe-3%Si sheets used in majority of power distribution transformers, the Goss texture {110} is known to provide the best utility properties (low power loses, high magnetic permeability). Due to the coarse grain size of CRGO steel, neutron diffraction (ND) is dominantly used to characterize the sheets' texture in order to achieve statistically significant data. In this paper, we present a fast and simple method for characterization of Goss texture perfection level in CRGO steel sheets based on monochromatic ND. The method is tested on 8 samples differing in fabrication technology and magnetic properties. Satisfactory performance of the method and its suitability for a detail texture analyses is tested by juxtaposition of the obtained textural and the magnetic characteristics measured by Barkhausen method.