Measuring Residual Stresses in Vamas International Calibration Block with the Stress Diffractometer of Ir-8 Reactor

• Published in: Russian journal of nondestructive testing Vol. 55; no. 4; pp. 328 - 333
• Main Authors: Karpov, I. D., Em, V. T., Sumin, V. V.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01-04-2019; Springer Nature B.V
• Subjects: Calibration; Characterization and Evaluation of Materials; Chemistry and Materials Science; Diffractometers; Materials Science; Power reactors; Radiation Methods; Residual stress; Structural Materials; internal stresses; neutron diffraction; calibration block; strains; stress diffractometer; residual stresses
• ISSN: 1061-8309; 1608-3385
• DOI: 10.1134/S1061830919040089

The results of measuring residual strains/stresses in the VAMAS international calibration block with the STRESS neutron diffractometer installed in the horizontal channel of the IR-8 reactor at Kurchatov Institute are presented. The measurement results are in good agreement with calculated stress values. The measurements have shown that the STRESS diffractometer is comparable in terms of its capabilities for measuring stresses with state-of-the-art diffractometers installed on higher power reactors.