2004
DOI: 10.1016/j.intermet.2003.09.016
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Formation and migration of thermal vacancies in Ni75Al25−xFex quasi-binaries with different superstructure stabilities: “order–order” kinetics study

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Cited by 11 publications
(12 citation statements)
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“…8, is associated with a decrease of the activation energy for ordering kinetics [114]. It has been found that this effect is related to a decrease in the vacancy formation energy with increasing Fe contents [115]. The vacancy migration energy shows no systematic dependence on the Fe concentration.…”
Section: Diffusion-related Propertiesmentioning
confidence: 96%
“…8, is associated with a decrease of the activation energy for ordering kinetics [114]. It has been found that this effect is related to a decrease in the vacancy formation energy with increasing Fe contents [115]. The vacancy migration energy shows no systematic dependence on the Fe concentration.…”
Section: Diffusion-related Propertiesmentioning
confidence: 96%
“…The dominance of C atoms in antisite migration explains equal values of the activation energies for ''ordereorder'' kinetics in Ni 3 Al 1Àx Fe x [5] and Fe diffusion in Ni 3 Al [6]. As it has been discussed [5], self-diffusion of Al in Ni 3 Al occurs …”
Section: Discussionmentioning
confidence: 84%
“…(1). The changes of a system configuration were observed by monitoring the MC-time dependence of the BraggeWilliams-type LRO parameter: in Ni 75 Al 25Àx Fe x [5]. Open circles denote the values of E A resulting from ''in situ'' resistometry [4].…”
Section: Monte Carlo Simulationsmentioning
confidence: 99%
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“…The corresponding vacancies volume concentration is : C 0 ≈ 5.3 10 23 m -3 . The vacancy diffusion coefficient was estimated from the migration energy of a nickel vacancy on the nickel sites [25,26]. This gives values of about D v ≈ 3 10 -9 m².s -1 at 1150°C.…”
Section: Euro Superalloys 2010mentioning
confidence: 99%