Diffusion Kinetics of Oxygen in β-Titanium Measured by Molten Flux Method

• Published in: Metallurgical and materials transactions. A, Physical metallurgy and materials science Vol. 40; no. 3; pp. 495 - 498
• Main Authors: Song, Min Ho, Han, Seung Min, Choi, Good Sun, Min, Dong Joon, Park, Joo Hyun
• Format: Journal Article
• Language: English
• Published: Boston Springer US 01.03.2009; Springer
• Subjects: Applied sciences; Characterization and Evaluation of Materials; Chemistry and Materials Science; Communication; Exact sciences and technology; Materials Science; Metallic Materials; Metals. Metallurgy; Nanotechnology; Structural Materials; Surfaces and Interfaces; TECHNOLOGY; TEKNIKVETENSKAP; Thin Films; Titanium; Interfacial Concentration; Oxide Scale; Flux System; Commercial Pure Titanium; Diffusion; Kinetics
• ISSN: 1073-5623; 1543-1940; 1543-1940
• DOI: 10.1007/s11661-008-9753-5

The unidirectional diffusion model of oxygen in β -titanium was investigated based on the molten flux method and was analyzed by combining thermodynamics and kinetics. The interfacial concentration of oxygen could uniformly be maintained by using the Ca(CaO)-CaCl 2 flux. The diffusion coefficient of oxygen in β -Ti has been measured at temperatures from 1273 to 1573 K. The diffusion coefficient of oxygen in β -Ti was evaluated as a function of temperature, especially at the low oxygen content region (0.025 mass pct O).