D. David, E.A. Garcia
Oxygen and nitrogen are known to be highly soluble in HCP α-titanium, occupying octahedral interstices with maximum solubilities of 34 and 25 at.%, respectively. This study aims to investigate the comparative diffusion and insertion processes of these interstitial elements in α-titanium, alongside their effects on lattice expansion and microhardness. Experimental methodologies involved determining diffusion profiles of oxygen via nuclear microanalysis of previously oxidized samples, performed at temperatures ranging from 700° to 900° C. These profiles facilitate the calculation of diffusion coefficients and associated activation energies. For nitrogen, the analysis was conducted on samples nitrided at higher temperatures (1000° C to 1450° C), using the reaction 14N(d,α)12, with results allowing for extrapolation despite differing experimental conditions. The study delineates the effects of both dissolved oxygen and nitrogen on the lattice parameters and microhardness of titanium, with results presented separately for each element and subsequently compared. The findings elucidate the significant influence of interstitial solutes on the physical properties of titanium, contributing valuable insights into its performance in various applications.
@article{a53f2be4-81d7-4e1d-8c94-05149eccba1b,
title={1980 Vol.1 5 A Comparative Study of Insertion and Diffusion of Oxygen D. David},
author={D. David and E.A. Garcia},
year={2026},
language={en}
}TY - JOUR TI - 1980 Vol.1 5 A Comparative Study of Insertion and Diffusion of Oxygen D. David AU - D. David AU - E.A. Garcia PY - 2026 LA - en ER -
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