Measuring the dislocation density of VT1-0 titanium alloys with different content of hydrogen by x-ray diffraction method

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Abstract

In this study, the distributions of dislocation density with hydrogen concentration in titanium VT1-0 were obtained. The samples with different hydrogen concentrations was carried out by using the Sieverts method. The dislocation densities were obtained by using the full width at height medium calculations from the XRD results of Gaussian approximation fitting. For accurate calculation of the dislocation density in titanium alloys, the double-line separation phenomenon of the XRD results and the variation of the Burgers vector in different lattice directions were considered. The phenomenon of the double-line separation is more evident when the diffraction angle 2θ is larger than 40°. The mean value of dislocation density for the different hydrogen concentrations is about 1013 ∼ 1014 m-2. Moreover, as the increases of hydrogen content in the titanium alloy, the dislocation density also increases.

Original languageEnglish
Article number012006
JournalIOP Conference Series: Materials Science and Engineering
Volume668
Issue number1
DOIs
Publication statusPublished - 8 Nov 2019
Event1st International Conference on Metals and Alloys, CMA 2019 - Beijing, China
Duration: 19 Aug 201922 Aug 2019

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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