Residual Stress States of Graded CuW Materials

Bokuchava, Gizo; Schreiber, J.; Shamsutdinov, N.R.; Stalder, M.

doi:10.4028/www.scientific.net/msf.308-311.1018

Cited by 3 publications

(1 citation statement)

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“…This makes it possible to study polycrystalline materials with a rather complex structure, including multiphase materials, in a fixed geometry under various external conditions. In earlier studies [43,44] of W/Cu-graded composite materials, it was shown that the samples prepared by the powder sintering method demonstrate a relatively low level of residual stresses. However, they have a greater brittleness compared with samples prepared by the infiltration method, which limits the prospects of their application.…”

Section: Mechanical Properties Of Structural Materialsmentioning

confidence: 99%

Neutron RTOF Stress Diffractometer FSD at the IBR-2 Pulsed Reactor

Bokuchava

2018

Crystals

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Abstract:The diffraction of thermal neutrons is a powerful tool for investigations of residual stresses in various structural materials and bulk industrial products due to the non-destructive character of the method and high penetration depth of neutrons. Therefore, for conducting experiments in this research field, the neutron Fourier stress diffractometer FSD has been constructed at the IBR-2 pulsed reactor in FLNP JINR (Dubna, Russia). Using a special correlation technique at the long-pulse neutron source, a high resolution level of the instrument has been achieved (∆d/d ≈ 2 ÷ 4 × 10 −3 ) over a wide range of interplanar spacing d hkl at a relatively short flight distance between the chopper and sample position (L = 5.55 m). The FSD design satisfies the requirements of a high luminosity, high resolution, and specific sample environment. In this paper, the current status of the FSD diffractometer is reported and examples of performed experiments are given.

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Section: Mechanical Properties Of Structural Materialsmentioning

confidence: 99%