Thermodynamics approach to the hydrogen diffusion and phase transformation in titanium particles

Gao, Weimin, Li, Weiqi, Zhou, Jin and Hodgson, Peter 2011, Thermodynamics approach to the hydrogen diffusion and phase transformation in titanium particles, Journal of alloys and compounds, vol. 509, no. 5, pp. 2523-2529, doi: 10.1016/j.jallcom.2010.11.073.

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Title Thermodynamics approach to the hydrogen diffusion and phase transformation in titanium particles
Author(s) Gao, WeiminORCID iD for Gao, Weimin orcid.org/0000-0002-7390-169X
Li, Weiqi
Zhou, Jin
Hodgson, Peter
Journal name Journal of alloys and compounds
Volume number 509
Issue number 5
Start page 2523
End page 2529
Total pages 7
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2011-02-03
ISSN 0925-8388
1873-4669
Keyword(s) titanium
hydrogen diffusion
phase transformation
thermodynamics
Summary The hydrogen diffusion and phase transformation in a titanium particle were studied based on thermodynamic calculation. The mechanisms of hydrogen diffusion in different phases (alpha-Ti, beta-Ti and TiHx) were analyzed. A mobility database was developed for titanium– hydrogen system based on the experimental works on hydrogen diffusion coefficient reported in literature and the fundamental of diffusion. To implement the calculation, a commercial software package for the simulation of diffusion-controlled phase transformation was used. The hydrogen diffusion process, hydrogen distribution, phase transformation and phase growth rate during hydrogenization of a titanium particle at temperatures of 560 K, 800K and 1000K were discussed. The thermodynamics and kinetics analysis provided quantitative insight into the diffusion process and improved the understanding of diffusion mechanism and phase transformation.
Language eng
DOI 10.1016/j.jallcom.2010.11.073
Field of Research 091207 Metals and Alloy Materials
091006 Manufacturing Processes and Technologies (excl Textiles)
030602 Chemical Thermodynamics and Energetics
Socio Economic Objective 861199 Basic Metal Products (incl. Smelting, Rolling, Drawing and Extruding) not elsewhere classified
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2011, Elsevier B.V.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30033005

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Created: Thu, 24 Feb 2011, 11:48:08 EST by Weimin Gao

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