Abstract
An investigation of thermomigration in interstitial solid solutions of carbon in β-Ti, V, α-Fe, Co, Ni, and Pd has been carried out using a radioactive tracer technique. A substantial solute redistribution occurred towards the hotter regions in α-iron and vanadium and towards the colder regions in palladium whilst for Co, Ni and β-Ti very little segregation was observed. The measured heats of transport were (in kcal per g-atom): α-Fe, −14.1±1.5; V, −4.9±1.0; Pd, +8.4±1.5; Co, +1.5±1.5; Ni, −1.6±1.4; β-Ti, −1.0±1.0. An examination of the results obtained together with all of the published data for interstitial solute thermomigration suggests that electronic effects could be of major importance in determining the redistributions observed.
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J.G. SHAW, formerly Research Student, Department of Metallurgy, University of Newcastle, N.S.W., Australia
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Shaw, J.G., Oates, W.A. Thermomigration of carbon in metals. Metall Trans 2, 2127–2134 (1971). https://doi.org/10.1007/BF02917541
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DOI: https://doi.org/10.1007/BF02917541