Abstract
The transition metal elements are known to exhibit very fast diffusion in {beta}-Ti as well as in {alpha}-Ti. It has been understood that the fast diffusion occurs by some type of interstitial mechanism. So far there have been no systematic diffusion measurements of fast diffusing elements in {beta}-Ti alloys as a function of the concentration of the diffusing elements. Thus, it is interesting to investigate the effect of Fe addition on Fe diffusion in wide concentration range of {beta} Ti-Fe phase in order to elucidate the diffusion mechanism. It is also worthwhile to compare the effect of Fe concentration on Fe diffusion in both {alpha} and {beta} Ti-Fe alloys. Moessbauer spectroscopy appears to be a useful method to clarify the diffusion mechanism in a microscopic way, which provides information of jump frequencies of diffusing atoms. The Fe tracer diffusion experiments and Moessbauer spectroscopy in {beta} Ti-Fe alloys were undertaken in the present work to elucidate the diffusion mechanism of Fe in {beta} Ti-Fe alloys. The present paper reports the tracer diffusion measurements of Fe in {beta} Ti-Fe alloys as a part of the series of experiments.
Published Version
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