Influence of Hydrogenation on Residual Stresses in Oxygen-Implanted Ti-6Al-4V Alloy
S. Nsengiyumva, T.P. Ntsoane, M. Topic, L. Pichon
download PDFWe report the influence of hydrogenation on residual stresses in an oxygen-implanted Ti-6Al-4V alloy. Prior to hydrogenation, oxygen ions were implanted in Ti-6Al-4V samples at fluence 3×1017 ions/cm2 with energies of 50 keV at room temperature and 550°C and 100 keV and 150 keV at 550°C. Hydrogenation was carried out on all samples at 550°C for two hours. Residual stresses were analysed by X-ray diffraction using the sin2ψ method and components of in-plane principal stresses were determined. Our results show compressive stress relaxation in all samples implanted with 50, 100 and 150 keV at 550°C as compared to unimplanted sample. Subsequent to hydrogenation, a stress shift to tensile side is observed in all implanted samples at 550°C.
Keywords
Titanium Alloy, Oxygen Implantation, Hydrogenation, 2D XRD, Principal Stress
Published online 4/20/2018, 6 pages
Copyright © 2018 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: S. Nsengiyumva, T.P. Ntsoane, M. Topic, L. Pichon, ‘Influence of Hydrogenation on Residual Stresses in Oxygen-Implanted Ti-6Al-4V Alloy’, Materials Research Proceedings, Vol. 4, pp 163-168, 2018
DOI: http://dx.doi.org/10.21741/9781945291678-25
The article was published as article 25 of the book
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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