In situ strained Inconel 718 superalloy studied by thermoelectric power technique

Thermoelectric power (TEP) of an Inconel 718 superalloy with different microstructure states has been followed during stressing tests. In all cases plastic deformation has been attained. TEP measurement variations of ∼35 nV/°C have been found in microstructural states with desirable phases. Treatmen...

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Veröffentlicht in:Journal of alloys and compounds 2009-01, Vol.467 (1), p.572-577
Hauptverfasser: Cuéllar, E. López, Morin, M., Melo, E. Reyes, Méndez, U. Ortiz, GuajardoMartínez, H., Cortéz, J. Yerena
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container_end_page 577
container_issue 1
container_start_page 572
container_title Journal of alloys and compounds
container_volume 467
creator Cuéllar, E. López
Morin, M.
Melo, E. Reyes
Méndez, U. Ortiz
GuajardoMartínez, H.
Cortéz, J. Yerena
description Thermoelectric power (TEP) of an Inconel 718 superalloy with different microstructure states has been followed during stressing tests. In all cases plastic deformation has been attained. TEP measurement variations of ∼35 nV/°C have been found in microstructural states with desirable phases. Treatments that produce non-desirable phase have shown lower variations. Results indicate that TEP of the Inconel 718 is clearly affected by the elastic and plastic strain induced during tests. A model of the material ΔTEP behaviour induced by the strain is proposed. Thus these encouraged results suggest the TEP technique as a powerful tool to detect non-desirable states and levels of strain into the Inconel 718.
doi_str_mv 10.1016/j.jallcom.2007.12.051
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subjects Alloys
Analysing. Testing. Standards
Applied sciences
Elasticity
Elasticity. Plasticity
Engineering Sciences
Exact sciences and technology
Materials
Mechanical properties
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
Strain
Stress analysis
Thermoelectric
title In situ strained Inconel 718 superalloy studied by thermoelectric power technique
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