Temperature effect on superdislocation dissociation on a cube plane in Ni3Al

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)61-68
Journal / PublicationPhilosophical Magazine Letters
Volume59
Issue number2
Publication statusPublished - Feb 1989
Externally publishedYes

Abstract

Temperature dependence of the apparent antiphase boundary (APB) energy on cube planes is studied using weak-beam determination of dissociation distances ofsuperdislocations originating from deformation at 20,650 and 850°C. It is difficultto assess how closely the observed dependence applies to the true cube ABP energybecause of the uncertainty associated with lattice resistance to the motion ofsuperpartials. It is estimated that the true energy of conservative APB on {001} isliable to decrease with temperature by as much as 30% between room temperatureand 850°C. © 1989 Taylor & Francis Group, LLC.

Citation Format(s)

Temperature effect on superdislocation dissociation on a cube plane in Ni3Al. / Veyssière, P.; Yoo, M. H.; Horton, J. A. et al.
In: Philosophical Magazine Letters, Vol. 59, No. 2, 02.1989, p. 61-68.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review