NickelMaghrebV1, Main, Exploration, bibRecord, 000A17

Caractérisation par DSC des séquences de transformation au cours d'un chauffage lent des alliages AMF à base de Cu-Al-Ni

Identifieur interne : 000A17 ( Main/Exploration ); précédent : 000A16; suivant : 000A18

Caractérisation par DSC des séquences de transformation au cours d'un chauffage lent des alliages AMF à base de Cu-Al-Ni

Auteurs : M. Bouabdallah [Algérie] ; G. Cizeron [France]

Source :

Journal of thermal analysis and calorimetry [ 1388-6150 ] ; 2002.

RBID : Pascal:02-0480061

Descripteurs français

Pascal (Inist)
- Transformation phase, Martensite, Phase martensitique, Alliage mémoire forme, Alliage ternaire, Cuivre Alliage, Aluminium Alliage, Nickel Alliage, Effet composition, Eutectoïde, Analyse thermique, DSC, 8130K.

English descriptors

KwdEn :
- Aluminium Alloys, Composition effect, Copper Alloys, DSC, Eutectoids, Martensite, Martensitic phase, Nickel Alloys, Phase transformations, Shape memory alloy, Ternary alloys, Thermal analysis.

Abstract

Quenching of the eutectoidal composition of the shape memory alloys (SMA's) allowed us to display the gradual transition of the martensitic structure as a function of the composition. Indeed, we have verified that for low Al and Ni percentages, the martensite structure obtained is β', while, for high Al and Ni (Al<13.3 mass%) contents, the martensite structure is essentially of β'₁ type. Elsewhere, we have observed that a nickel addition (<4.3 mass%) operates simultaneously on the composition of the eutectoidal point and the domain of the different martensitic structures types. During reheating of the quenched structure, the transformation sequences of the martensite to the parent phase (β₁), then the decomposition of the later phase into the equilibrium phases, and finally, the redissolution of all phases to form the β phase at high temperature, are rather similar.

Affiliations:

Links toward previous steps (curation, corpus...)

to stream PascalFrancis, to step Corpus: 000390
to stream PascalFrancis, to step Curation: 000051
to stream PascalFrancis, to step Checkpoint: 000383
to stream Main, to step Merge: 000A40
to stream Main, to step Curation: 000A17

Le document en format XML

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<term>Eutectoids</term>
<term>Martensite</term>
<term>Martensitic phase</term>
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<term>Cuivre Alliage</term>
<term>Aluminium Alliage</term>
<term>Nickel Alliage</term>
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<front><div type="abstract" xml:lang="en">Quenching of the eutectoidal composition of the shape memory alloys (SMA's) allowed us to display the gradual transition of the martensitic structure as a function of the composition. Indeed, we have verified that for low Al and Ni percentages, the martensite structure obtained is β', while, for high Al and Ni (Al<13.3 mass%) contents, the martensite structure is essentially of β'<sub>1</sub>
 type. Elsewhere, we have observed that a nickel addition (<4.3 mass%) operates simultaneously on the composition of the eutectoidal point and the domain of the different martensitic structures types. During reheating of the quenched structure, the transformation sequences of the martensite to the parent phase (β<sub>1</sub>
), then the decomposition of the later phase into the equilibrium phases, and finally, the redissolution of all phases to form the β phase at high temperature, are rather similar.</div>
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Caractérisation par DSC des séquences de transformation au cours d'un chauffage lent des alliages AMF à base de Cu-Al-Ni

Caractérisation par DSC des séquences de transformation au cours d'un chauffage lent des alliages AMF à base de Cu-Al-Ni

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri