Premium
Influence of multiple small‐angle neutron scattering on diffraction peak broadening in ferritic steel
Author(s) -
Woo Wanchuck,
Em Vyacheslav,
Shin Eunjoo,
Mikula Pavol,
Ryukhtin Vasyl
Publication year - 2015
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s1600576715000813
Subject(s) - neutron diffraction , small angle neutron scattering , neutron scattering , materials science , neutron , scattering , diffraction , neutron reflectometry , magnetic field , optics , neutron time of flight scattering , biological small angle scattering , neutron radiation , nuclear physics , physics , quantum mechanics
Peak broadening of neutron diffraction was studied at various neutron wavelengths (1.24–2.61 Å). As the neutron beam path through a specimen increased, significant peak broadening was observed in ferritic steel, but not in austenitic steel. The peak broadening was reduced under a magnetic field applied perpendicular to the beam direction. Small‐angle neutron scattering results showed significant reduction in scattering intensities under a magnetic field of 1.2 T. It is suggested that the peak broadening can be attributed to multiple small‐angle neutron scattering by magnetic domains. Thus, a sufficiently strong magnetic field could enhance the deep penetration capability of neutron diffraction by reducing the peak broadening.