1. On the Resolution in Strain/Stress Measurements on Bulk Polycrystalline Samples by 3-Axis Neutron Diffractometer.
- Author
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Mikula, P., Ryukhtin, V., Michalcová, A., and Em, V. T.
- Subjects
STRAINS & stresses (Mechanics) ,STRESS measurement (Mechanics) ,POLYCRYSTALS ,NEUTRON diffraction ,RESIDUAL stresses measurement - Abstract
Important resolution properties of the high-resolution 3-axis neutron diffraction set-up were investigated in the frame of feasibility of its use for strain/stress measurements on bulk polycrystalline samples. The strain analysis was carried out by rocking the BPC-analyzer and the neutron signal registered by a point detector. The so-called rocking curve then provided a sample diffraction profile and could reflect the lattice or structural changes. In comparison with a conventional 2-axis set-up, this instrument alternative could be successfully applied, namely, in the strain/stress measurements in bulk samples exposed to an external load, e.g. in tension/compression rig, in aging machine etc. and provide average strain values over a large irradiated volume of the sample. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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