Abstract
Grazing incidence X-ray diffraction, performed on a 70 keV nitrogen implanted Ti-6Al-4V system, reveals phase instabilities, during the course of nitride formation. With the build up of unbound N atom concentration, for a dose of 1×1016 ions/cm2, the surface region becomesα-rich, whereas, on precipitation of Ti-nitrides at a high dose of 1×1017 ions/cm2, theβ-Ti phase reappears, at the surface and beyond the implanted zone. The low concentration of V and the strain in the nitrided zone, have led to radiation induced martensitic transformation of theβ-Ti phase.
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Rajan, N., Sampath Kumar, T.S., Nair, K.G.M. et al. Phase instabilities during Ti-nitride precipitation in nitrogen implanted Ti-6AI-4V alloy. Bull Mater Sci 21, 303–308 (1998). https://doi.org/10.1007/BF02744957
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DOI: https://doi.org/10.1007/BF02744957