Titanium defect structure change after gas-phase hydrogenation at different temperatures and cooling rates

Andrey A. Mikhaylov, Roman S. Laptev, Viktor Nikolaevich Kudiyarov, Tatiana L. Volokitina

Division for Experimental Physics

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

Abstract

Influence of gas-phase hydrogenation temperature and cooling rate on defect structure of commercially pure titanium alloy was experimentally studied by means of positron annihilation spectroscopy. The change of temperature in the process of gas-phase hydrogenation was in the range of 500-700°C, while the change of cooling rate was in the range of 0.4-10.4°C/min. With increasing of gas-phase hydrogenation temperature, significant increase of hydrogen sorption rate was found. High temperature gas-phase hydrogenation of commercially pure titanium alloy lead to the formation of vacancy and hydrogen-vacancy complexes. For the same concentration of hydrogen, temperature variation or variation of cooling rate had no effect on the type of defect. However, this variation provides significant changes in defect concentration.

Original language	English
Title of host publication	Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016
Subtitle of host publication	Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016
Publisher	American Institute of Physics Inc.
Volume	1783
ISBN (Electronic)	9780735414457
DOIs	https://doi.org/10.1063/1.4966445
Publication status	Published - 10 Nov 2016
Event	International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016 - Tomsk, Russian Federation Duration: 19 Sep 2016 → 23 Sep 2016

Conference

Conference	International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016
Country	Russian Federation
City	Tomsk
Period	19.9.16 → 23.9.16

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ASJC Scopus subject areas

Physics and Astronomy(all)

Cite this

Mikhaylov, A. A., Laptev, R. S., Kudiyarov, V. N., & Volokitina, T. L. (2016). Titanium defect structure change after gas-phase hydrogenation at different temperatures and cooling rates. In Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016 (Vol. 1783). [020152] American Institute of Physics Inc.. https://doi.org/10.1063/1.4966445

Titanium defect structure change after gas-phase hydrogenation at different temperatures and cooling rates. / Mikhaylov, Andrey A.; Laptev, Roman S.; Kudiyarov, Viktor Nikolaevich ; Volokitina, Tatiana L.

Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016. Vol. 1783 American Institute of Physics Inc., 2016. 020152.

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

Mikhaylov, AA, Laptev, RS , Kudiyarov, VN & Volokitina, TL 2016, Titanium defect structure change after gas-phase hydrogenation at different temperatures and cooling rates. in Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016. vol. 1783, 020152, American Institute of Physics Inc., International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016, Tomsk, Russian Federation, 19.9.16. https://doi.org/10.1063/1.4966445

Mikhaylov AA, Laptev RS , Kudiyarov VN , Volokitina TL. Titanium defect structure change after gas-phase hydrogenation at different temperatures and cooling rates. In Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016. Vol. 1783. American Institute of Physics Inc. 2016. 020152 https://doi.org/10.1063/1.4966445

Mikhaylov, Andrey A. ; Laptev, Roman S. ; Kudiyarov, Viktor Nikolaevich ; Volokitina, Tatiana L. / Titanium defect structure change after gas-phase hydrogenation at different temperatures and cooling rates. Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016. Vol. 1783 American Institute of Physics Inc., 2016.

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N2 - Influence of gas-phase hydrogenation temperature and cooling rate on defect structure of commercially pure titanium alloy was experimentally studied by means of positron annihilation spectroscopy. The change of temperature in the process of gas-phase hydrogenation was in the range of 500-700°C, while the change of cooling rate was in the range of 0.4-10.4°C/min. With increasing of gas-phase hydrogenation temperature, significant increase of hydrogen sorption rate was found. High temperature gas-phase hydrogenation of commercially pure titanium alloy lead to the formation of vacancy and hydrogen-vacancy complexes. For the same concentration of hydrogen, temperature variation or variation of cooling rate had no effect on the type of defect. However, this variation provides significant changes in defect concentration.

AB - Influence of gas-phase hydrogenation temperature and cooling rate on defect structure of commercially pure titanium alloy was experimentally studied by means of positron annihilation spectroscopy. The change of temperature in the process of gas-phase hydrogenation was in the range of 500-700°C, while the change of cooling rate was in the range of 0.4-10.4°C/min. With increasing of gas-phase hydrogenation temperature, significant increase of hydrogen sorption rate was found. High temperature gas-phase hydrogenation of commercially pure titanium alloy lead to the formation of vacancy and hydrogen-vacancy complexes. For the same concentration of hydrogen, temperature variation or variation of cooling rate had no effect on the type of defect. However, this variation provides significant changes in defect concentration.

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Access to Document

10.1063/1.4966445