Investigation of defects in hydrogen-saturated titanium by means of positron annihilation techniques

Abstract

This paper presents the results of a defect structure investigation in commercially pure titanium alloy after hydrogen charging in a gaseous atmosphere at the temperature of 873 K up to the concentration of 5.1 at. %. Structure of samples was studied by positron lifetime, Doppler broadening and X-ray diffraction spectrometry. Several processes, corresponding to the different ranges of hydrogen concentrations were revealed. It was shown that hydrogen, penetrating in the material, expands its crystal lattice, initiates formation of vacancy-like defects of different dimensions and reacts with the last ones, forming the defect-hydrogen complexes.

Original language	English
Title of host publication	Defect and Diffusion Forum
Publisher	Trans Tech Publications Ltd
Pages	232-236
Number of pages	5
Volume	365
ISBN (Print)	9783038355168
DOIs	https://doi.org/10.4028/www.scientific.net/DDF.365.232
Publication status	Published - 2015
Event	10th International Conference on Diffusion in Solids and Liquids, Mass Transfer - Heat Transfer - Microstructure and Properties - Nanodiffusion and Nanostructured Materials, DSL 2014 - Paris, France Duration: 23 Jun 2014 → 27 Jun 2014

Publication series

Name	Defect and Diffusion Forum
Volume	365
ISSN (Print)	10120386

Other

Other	10th International Conference on Diffusion in Solids and Liquids, Mass Transfer - Heat Transfer - Microstructure and Properties - Nanodiffusion and Nanostructured Materials, DSL 2014
Country	France
City	Paris
Period	23.6.14 → 27.6.14

Keywords

Cluster
Defect-hydrogen
Doppler broadening
Hydrogen loading
Hydrogenation
Positron annihilation
Positron lifetime
Titanium-hydrogen
Vacancy

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Radiation

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Laptev, R. S., Lider, A. M., Bordulev, Y. S., Kudiiarov, V. N., Garanin, G. V., Wang, W., & Kuznetsov, P. V. (2015). Investigation of defects in hydrogen-saturated titanium by means of positron annihilation techniques. In Defect and Diffusion Forum (Vol. 365, pp. 232-236). (Defect and Diffusion Forum; Vol. 365). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/DDF.365.232

Investigation of defects in hydrogen-saturated titanium by means of positron annihilation techniques. / Laptev, Roman S.; Lider, Andrey M.; Bordulev, Yuriy S.; Kudiiarov, Viktor N.; Garanin, Georgiy V.; Wang, Wei; Kuznetsov, Pavel V.

Defect and Diffusion Forum. Vol. 365 Trans Tech Publications Ltd, 2015. p. 232-236 (Defect and Diffusion Forum; Vol. 365).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Laptev, RS , Lider, AM , Bordulev, YS , Kudiiarov, VN , Garanin, GV, Wang, W & Kuznetsov, PV 2015, Investigation of defects in hydrogen-saturated titanium by means of positron annihilation techniques. in Defect and Diffusion Forum. vol. 365, Defect and Diffusion Forum, vol. 365, Trans Tech Publications Ltd, pp. 232-236, 10th International Conference on Diffusion in Solids and Liquids, Mass Transfer - Heat Transfer - Microstructure and Properties - Nanodiffusion and Nanostructured Materials, DSL 2014, Paris, France, 23.6.14. https://doi.org/10.4028/www.scientific.net/DDF.365.232

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abstract = "This paper presents the results of a defect structure investigation in commercially pure titanium alloy after hydrogen charging in a gaseous atmosphere at the temperature of 873 K up to the concentration of 5.1 at. %. Structure of samples was studied by positron lifetime, Doppler broadening and X-ray diffraction spectrometry. Several processes, corresponding to the different ranges of hydrogen concentrations were revealed. It was shown that hydrogen, penetrating in the material, expands its crystal lattice, initiates formation of vacancy-like defects of different dimensions and reacts with the last ones, forming the defect-hydrogen complexes.",

keywords = "Cluster, Defect-hydrogen, Doppler broadening, Hydrogen loading, Hydrogenation, Positron annihilation, Positron lifetime, Titanium-hydrogen, Vacancy",

author = "Laptev, {Roman S.} and Lider, {Andrey M.} and Bordulev, {Yuriy S.} and Kudiiarov, {Viktor N.} and Garanin, {Georgiy V.} and Wei Wang and Kuznetsov, {Pavel V.}",

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AU - Kudiiarov, Viktor N.

AU - Garanin, Georgiy V.

AU - Wang, Wei

AU - Kuznetsov, Pavel V.

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AB - This paper presents the results of a defect structure investigation in commercially pure titanium alloy after hydrogen charging in a gaseous atmosphere at the temperature of 873 K up to the concentration of 5.1 at. %. Structure of samples was studied by positron lifetime, Doppler broadening and X-ray diffraction spectrometry. Several processes, corresponding to the different ranges of hydrogen concentrations were revealed. It was shown that hydrogen, penetrating in the material, expands its crystal lattice, initiates formation of vacancy-like defects of different dimensions and reacts with the last ones, forming the defect-hydrogen complexes.

KW - Cluster

KW - Defect-hydrogen

KW - Doppler broadening

KW - Hydrogen loading

KW - Hydrogenation

KW - Positron annihilation

KW - Positron lifetime

KW - Titanium-hydrogen

KW - Vacancy

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