Abstract
The electric mobilities, effective valences, and diffusivities of carbon, nitrogen, and oxygen in β-titanium were measured in the temperature range of 1335 to 1575°C. The effective valence, Z*, of carbon was determined to be positive and nitrogen and oxygen to be negative, thus confirming a previously reported anomaly in the electrotransport behavior of carbon in titanium. A similar anomaly in the effective charge of nitrogen in γ iron was also investigated. The previously reported negativeZ* value was not supported by the results of this investigation. PositiveZ* values were obtained for nitrogen in both α and γ iron in agreement with those for carbon in these two phases. An analytical method of solving for the various transport parameters was used in this investigation. A mathematical proof of the method and the treatment of errors is described in the paper.
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Carlson, O.N., Schmidt, F.A. & Lichtenberg, R.R. Investigation of reported anomalies in the electrotransport of interstitial solutes in titanium and iron. Metall Trans A 6, 725–731 (1975). https://doi.org/10.1007/BF02672292
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DOI: https://doi.org/10.1007/BF02672292