NickelMaghrebV1, Main, Exploration, bibRecord, 000818

A study of the high temperature tensile properties of an Fe-Ni alloy

Identifieur interne : 000818 ( Main/Exploration ); précédent : 000817; suivant : 000819

A study of the high temperature tensile properties of an Fe-Ni alloy

Auteurs : G. Saindrenan [France] ; M. T. Simonetta-Perrot [France] ; R. Le Gall [France] ; R. Louahdi [Algérie]

Source :

Journal de physique. IV [ 1155-4339 ] ; 2005.

RBID : Pascal:05-0186075

Descripteurs français

Pascal (Inist)
- Propriété traction, Essai traction, Ductilité, Microstructure, Fractographie, Ségrégation joint grain, Précipitation joint grain, Ségrégation impureté, Fer alliage, Nickel alliage, S, Mn, B, Al, 6220F.

English descriptors

KwdEn :
- Ductility, Fractography, Grain boundary precipitation, Grain boundary segregation, Impurity segregation, Iron alloys, Microstructure, Nickel alloys, Tensile properties, Tensile tests.

Abstract

Tensile tests carried out at different temperatures on Fe-Ni alloys with different sulphur contents revealed a marked drop in ductility in the temperature range 600°C to 1000°C. The presence of manganese was found to reduce the loss of ductility. The morphology of the fracture surface revealed smooth intergranular failure in the most severe cases and failures showing local indications of ductility (dimples) for the less severe cases. The behaviour is explained in terms of sulphur segregation to the grain boundaries and the action of Mn is related to the formation of MnS precipitates which hinder segregation of free sulphur. The presence of nitride formers such as Boron and aluminium was found to have a detrimental effect if these elements are in their combined form (i.e., nitrides) and a beneficial effect if they are in their free atomic form. This behaviour is related to the formation and dissolution of BN and A1N precipitates.

Affiliations:

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to stream Main, to step Curation: 000818

Le document en format XML

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<front><div type="abstract" xml:lang="en">Tensile tests carried out at different temperatures on Fe-Ni alloys with different sulphur contents revealed a marked drop in ductility in the temperature range 600°C to 1000°C. The presence of manganese was found to reduce the loss of ductility. The morphology of the fracture surface revealed smooth intergranular failure in the most severe cases and failures showing local indications of ductility (dimples) for the less severe cases. The behaviour is explained in terms of sulphur segregation to the grain boundaries and the action of Mn is related to the formation of MnS precipitates which hinder segregation of free sulphur. The presence of nitride formers such as Boron and aluminium was found to have a detrimental effect if these elements are in their combined form (i.e., nitrides) and a beneficial effect if they are in their free atomic form. This behaviour is related to the formation and dissolution of BN and A1N precipitates.</div>
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A study of the high temperature tensile properties of an Fe-Ni alloy

A study of the high temperature tensile properties of an Fe-Ni alloy

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