Research of Hydrogenation and Dehydrogenation Effect on the Structural and Phase State of the Titanium Alloy

Abstract:

Effect of hydrogen on the structural and phase state of the fine-grained and submicrocrystalline structure of two-phase (alpha + beta) titanium Ti-6Al-4V alloy was investigated by the methods of electron microscopy and X-ray diffraction analysis. Hydrogenation is found to result in minor structural and phase changes both in fine-grained and submicrocrystalline samples. The use of electron beam exposure combined with heating for hydrogen release in the Ti-6Al-4V alloy is shown to reduce degassing time and decrease the hydrogen concentration to the values closed to the engineering standards for the Ti-6Al-4V alloys.

• Periodical: Key Engineering Materials (Volume 683)
• Pages: 187-192
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.683.187
• Online since: February 2016
• Authors: Ekaterina N. Stepanova*, Viktor N. Kudiiarov, Vladimir S. Sypchenko, Andrey M. Lider, Gang Liu
• Keywords: Annealing, Electron Beam Irradiation, Hydrogen, Submicrocrystalline Structure, Titanium Alloy

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