Oxygen Diffusion in Ti–10Mo–Zr Alloys Studied Using Mechanical Spectroscopy

Abstract

Mechanical spectroscopy measurements (internal friction) have mainly been used as an information resource regarding solute behavior in metals and alloys, such as solubility limit, interstitial concentration, and diffusion. In this paper, the oxygen diffusion in Ti–10Mo–Zr alloys was investigated using mechanical spectroscopy measurements. Using the Arrhenius law and simple mathematical analysis of the relaxation peaks, the relaxation parameters were obtained. A relaxation spectrum was observed, associated with the interstitial diffusion of oxygen in a solution of Ti–10Mo–10Zr alloys. The activation energy (1.55 ± 0.01) eV and the diffusivity of oxygen (1.6 ± 0.5) × 10–4 cm2/s in the alloys were obtained using a mathematical treatment of the structures derived from the relaxation time.