Morphology and chemical nanoanalysis of discontinuous precipitation in MgAl allyos-II. Irregular growth

D. Duly; M. C. Cheynet; Y. Brechet

doi:10.1016/0956-7151(94)90451-0

Morphology and chemical nanoanalysis of discontinuous precipitation in MgAl allyos-II. Irregular growth

D. Duly, M. C. Cheynet, Y. Brechet

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43 Citations (Scopus)

Abstract

Loacl chemical analysis of discontinuous precipitation in MgAl alloys has been performed in various cases where the lamellae exhibit a change in habit plane. It is shown that such an event is always preceded by the appearance of an asymmetry in the solute concentration profile in the α lamellae, and that it results in a decrease of this asymmetry. From a stability analysis of the grain boundary shape, a scenario is proposed for explaining the occurrence of these changes in habit planes.

Original language	English
Pages (from-to)	3855-3863
Number of pages	9
Journal	Acta Metallurgica Et Materialia
Volume	42
Issue number	11
DOIs	https://doi.org/10.1016/0956-7151(94)90451-0
Publication status	Published - Nov 1994
Externally published	Yes

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abstract = "Loacl chemical analysis of discontinuous precipitation in MgAl alloys has been performed in various cases where the lamellae exhibit a change in habit plane. It is shown that such an event is always preceded by the appearance of an asymmetry in the solute concentration profile in the α lamellae, and that it results in a decrease of this asymmetry. From a stability analysis of the grain boundary shape, a scenario is proposed for explaining the occurrence of these changes in habit planes.",

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AU - Cheynet, M. C.

AU - Brechet, Y.

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N2 - Loacl chemical analysis of discontinuous precipitation in MgAl alloys has been performed in various cases where the lamellae exhibit a change in habit plane. It is shown that such an event is always preceded by the appearance of an asymmetry in the solute concentration profile in the α lamellae, and that it results in a decrease of this asymmetry. From a stability analysis of the grain boundary shape, a scenario is proposed for explaining the occurrence of these changes in habit planes.

AB - Loacl chemical analysis of discontinuous precipitation in MgAl alloys has been performed in various cases where the lamellae exhibit a change in habit plane. It is shown that such an event is always preceded by the appearance of an asymmetry in the solute concentration profile in the α lamellae, and that it results in a decrease of this asymmetry. From a stability analysis of the grain boundary shape, a scenario is proposed for explaining the occurrence of these changes in habit planes.

UR - https://www.scopus.com/pages/publications/0028532619

U2 - 10.1016/0956-7151(94)90451-0

DO - 10.1016/0956-7151(94)90451-0

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AN - SCOPUS:0028532619

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JO - Acta Metallurgica Et Materialia

JF - Acta Metallurgica Et Materialia

IS - 11

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Morphology and chemical nanoanalysis of discontinuous precipitation in MgAl allyos-II. Irregular growth

Abstract

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