Tracer Diffusion of Cobalt in High-Entropy Alloys AlxFeNiCoCuCr
The Co diffusion in the as-cast high-entropy alloys AlxFeNiCoCuCr (x = 1, 1.5, 1.8) is studied by means of the tracer-diffusion method using the ⁶⁰Cо isotope. As shown, the Co diffusion in the high-entropy alloys occurs by means of the vacancy mechanism and the diffusion coefficient decreases approx...
Збережено в:
| Дата: | 2017 |
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| Автори: | , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут металофізики ім. Г.В. Курдюмова НАН України
2017
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| Назва видання: | Металлофизика и новейшие технологии |
| Теми: | |
| Онлайн доступ: | https://nasplib.isofts.kiev.ua/handle/123456789/123468 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Tracer Diffusion of Cobalt in High-Entropy Alloys AlxFeNiCoCuCr / V.M. Nadutov, V.F. Mazanko, S.Yu. Makarenko // Металлофизика и новейшие технологии. — 2017. — Т. 39, № 3. — С. 337-348. — Бібліогр.: 22 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | The Co diffusion in the as-cast high-entropy alloys AlxFeNiCoCuCr (x = 1, 1.5, 1.8) is studied by means of the tracer-diffusion method using the ⁶⁰Cо isotope. As shown, the Co diffusion in the high-entropy alloys occurs by means of the vacancy mechanism and the diffusion coefficient decreases approximately in three times (from 3.21•10⁻¹⁶ to 0.98•10⁻¹⁶ m⁻¹⁶s⁻¹) with the increasing Al concentration. The decelerated Co diffusion is explained in terms of relatively large and negative enthalpy of mixing. |
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