Neutron Diffraction Measurements of Residual Stresses for Ferritic Steel Specimens over 80 mm Thick
Vyacheslav Em,
Karpov Ivan,
Wanchuck Woo
et al.
Abstract:The maximum thickness for ferritic steel specimens’ residual stress measurements using neutron diffraction is known to be about 80 mm. This paper proposes a new neutron diffraction configuration of residual stress measurements for cases that are over 80 mm thick. The configuration utilizes a neutron beam with a wavelength of 1.55 Å diffracted from the (220) plane with a diffraction angle (2θ) of 99.4°. The reason for the deep penetration capability is attributed to the chosen wavelength having enough intensiti… Show more
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