Characterization of deformation by cold rolling in ferritic steel containing Cu particles using neutron transmission analysis

中性子透過率解析を用いた銅粒子を含むフェライト鋼の冷間圧延による変形の解析

大場 洋次郎  ; 諸岡 聡  ; 大石 一城*; 鈴木 淳市*; 土山 聡宏*

Oba, Yojiro; Morooka, Satoshi; Oishi, Kazuki*; Suzuki, Junichi*; Tsuchiyama, Toshihiro*

Neutron transmission spectra of Cu steel were measured to characterize the change of microstructures by cold rolling. Bragg edges in neutron attenuation coefficients indicate the rotation of {110} planes of ferrite grains and is useful to characterize the evolution of preferred orientations with the cold rolling. In addition, SANS contribution in the neutron attenuation coefficients provides the nanostructural information about the deformation of the Cu precipitates. These results demonstrate that the neutron transmission analysis is beneficial for microstructural characterization in steels.