Measurement of the Residual Stresses Dynamics in Tungsten During Heating | Sciact - CRIS-system of Boreskov Institute of Catalysis

Measurement of the Residual Stresses Dynamics in Tungsten During Heating Full article

Conference

International Conference "Synchrotron and Free electron laser Radiation: generation and application"
13-17 Jul 2020 , Novosibirsk

Journal

AIP Conference Proceedings
ISSN: 0094-243X , E-ISSN: 1551-7616

Output data

Year: 2020, Volume: 2299, Number: 1, Article number : 040006, Pages count : 6 DOI: 10.1063/5.0030563

Authors

Balash Ilya ^1,2,3,4 , Arakcheev Aleksey ^1,2,4 , Sharafutdinov Marat ^1,3,4 , Shmakov Alexander ^1,4,5 , Tolochko Boris ^1,3 , Vasilyev Alexander ^1,2

Affiliations

1	Budker Institute of Nuclear Physics SB RAS, pr. Akad. Lavrent'eva 11, 630090, Novosibirsk, Russia
2	Novosibirsk State University, ul. Pirogova 1, 630090, Novosibirsk, Russia
3	Institute of Solid State Chemistry and Mechanochemistry SB RAS, ul. Kutateladze 18, 630128, Novosibirsk, Russia
4	Novosibirsk State Technical University, pr. Karla Marksa 20, 630073, Novosibirsk, Russia
5	Boreskov Institute of Catalysis SB RAS, pr. Akad. Lavrent'eva 5, 630090, Novosibirsk, Russia

Funding (2)

1	Ministry of Science and Higher Education of the Russian Federation	05.621.21.0022 (RFMEFI62119X0022) (АААА-А20-120072290017-9)
2	Russian Science Foundation	19-19-00272 (АААА-А19-119052190012-1)

In a thermonuclear reactor plasma interacts with the divertor walls in the form of periodic heat pulses as well as constant heat load. As a result, residual plastic deformations and mechanical stresses can occur, which cause destruction of the divertor material. However, these residual deformations and stresses can be relieved under the influence of constant flux of plasma and the consequential high temperature of the material. The goal of this work was the study of residual stresses dynamics in a heated material. Residual deformations and stresses were measured using X-ray diffractometry. The measurements were conducted on tungsten samples that were irradiated with an electron beam on the BETA facility with the purpose of simulating plasma heat loads. Synchrotron radiation scattering station “Anomalous scattering” on the beam line 2 of VEPP-3 was used to measure diffractograms from which scattering angle - sample tilt angle dependencies were obtained. The experimental data was used for calculation of deformation and stress tensor components. To compare heat load and residual stress profiles the measurements were conducted with spatial resolution. Synchrotron radiation scattering station “Diffraction movie” was used for measuring the dynamics of residual stresses during heating. As a result of these experiments scattering angle - temperature dependencies were obtained. Residual stresses relaxation was measured, the result has met our expectations. © 2020 American Institute of Physics Inc. All rights reserved.

Balash I. , Arakcheev A. , Sharafutdinov M. , Shmakov A. , Tolochko B. , Vasilyev A.
Measurement of the Residual Stresses Dynamics in Tungsten During Heating

AIP Conference Proceedings. 2020. V.2299. N1. 040006 :1-6. DOI: 10.1063/5.0030563 Scopus РИНЦ AN OpenAlex

Full text from publisher

Published print:	Nov 17, 2020
Published online:	Nov 17, 2020

Scopus:	2-s2.0-85096472675
Elibrary:	45131006
Chemical Abstracts:	2021:1074988
OpenAlex:	W3104151877

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Scopus	2
OpenAlex	1