PSI - Issue 23

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Available online at www.sciencedirect.com Structural Int grity Procedia 00 (2019) 000 – 000 Structural Integrity Procedia 00 (2019) 000 – 000

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ScienceDirect

Procedia Structural Integrity 23 (2019) 390–395

© 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the scientific committee of the ICMSMF organizers Experimental tests of flat titanium samples at a temperature of 450 ° C, stretched with a constant force up to destruction, were carried out. Titanium samples were hydrogenated in the Moscow Aviation Institute laboratory to a hydrogen content of 0.1 %, 0.3 % and 0.6 % by weight of the specimen, and then tested in the laboratory of Lomonosov Moscow State University. From the experiments, the time to failure, the localization time of the deformations, and the stress distribution along the longitudinal coordinate of the sample over time were obtained. A metallographic study was conducted and the phase composition was investigated in Moscow Aviation Institute. The effect of hydrogen on long-term strength, mechanical characteristics, and phase composition has been elucidated. 1 9 The Authors. Published by Elsevier B.V. is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) r-review under responsibility of the scientific committe of the IC MSMF organizers. Keywords: "Creep, titanium specimen, experiment, hydrogenation, necking" 9th International Conference on Materials Structure and Micromechanics of Fracture The icrostructure study of the hydrogenated titaniu speci ens tested at high te perature creep for long-ter tensile strength . Teraud a* , A. amonov b "a Institute of Mechanics of Lomonosov Moscow State University, Moscow, Russia, 119192" "b Moscow Aviation Institute, Moscow, Russia, 125993" Abstract Experimental tests of flat titanium samples at a temperature of 450 ° C, stretched with a constant force up to destruction, were carried out. Titanium samples were hydrogenated in the Moscow Aviation Institute laboratory to a hydrogen content of 0.1 %, 0.3 % and 0.6 % by weight of the specimen, and then tested in the laboratory of Lomonosov Moscow State University. From the experiments, the time to failure, the localization time of the deformations, and the stress distribution along the longitudinal coordinate of the sample over time were obtained. A metallographic study was conducted and the phase composition was investigated in Moscow Aviation Institute. The effect of hydrogen on long-term strength, mechanical characteristics, and phase composition has been elucidated. © 201 9 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the scientific committee of the IC MSMF organizers. Keywords: "Creep, titanium specimen, experiment, hydrogenation, necking" 9th International Conference on Materials Structure and Micromechanics of Fracture The microstructure study of the hydrogenated titanium specimens tested at high temperature creep for long-term tensile strength W. Teraud a* , A. Mamonov b "a Institute of Mechanics of Lomonosov Moscow State University, Moscow, Russia, 119192" "b Moscow Aviation Institute, Moscow, Russia, 125993" Abstract

Nomenclature t time t * Nomenclature t time t *

fracture time fracture time initial stress initial stress

localization deformation time localization deformation time

 

 0  0

* Corresponding author. Tel.: +7-495-939-5278; fax: +7-495-939-5308. E-mail address: ldrnww@gmail.com * Corresponding author. Tel.: +7-495-939-5278; fax: +7-495-939-5308. E-mail address: ldrnww@gmail.com

2452-3216 © 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the scientific committee of the IC MSMF organizers. 2452-3216 © 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the scientific committee of the IC MSMF organizers.

2452-3216 © 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the scientific committee of the ICMSMF organizers 10.1016/j.prostr.2020.01.118