Damage Evolution in Compacted Graphite Iron during Thermo-Mechanical Fatigue Testing

Thermo-mechanical fatigue (TMF) properties of a compacted graphite iron (CGI) in an out-of-phase (OP) configuration are investigated for different maximum temperatures and mechanical strain ranges. Furthermore, the stress-strain hysteresis loops are analysed and in particular the unloading modulus,...

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Autores principales: Norman, V., Skoglund, P., Moverare, J.
Formato: Artículo
Lenguaje:Inglés
Publicado: INTEMA - UNMdP-CONICET 2014
Acceso en línea:10 Th International Symposium on the Science and Processing of Cast Iron. 2014. Argentina: Mar del Plata 10 to 13th of November.
Aporte de:
RINFI - Facultad de Ingeniería (UNLdP) de Universidad Nacional de Mar del Plata (UNMdP)
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record_format ojs
institution Universidad Nacional de Mar del Plata (UNMdP)
institution_str I-29
repository_str R-182
container_title_str RINFI - Facultad de Ingeniería (UNLdP)
language Inglés
format Artículo
author Norman, V.
Skoglund, P.
Moverare, J.
spellingShingle Norman, V.
Skoglund, P.
Moverare, J.
Damage Evolution in Compacted Graphite Iron during Thermo-Mechanical Fatigue Testing
author_facet Norman, V.
Skoglund, P.
Moverare, J.
author_sort Norman, V.
title Damage Evolution in Compacted Graphite Iron during Thermo-Mechanical Fatigue Testing
title_short Damage Evolution in Compacted Graphite Iron during Thermo-Mechanical Fatigue Testing
title_full Damage Evolution in Compacted Graphite Iron during Thermo-Mechanical Fatigue Testing
title_fullStr Damage Evolution in Compacted Graphite Iron during Thermo-Mechanical Fatigue Testing
title_full_unstemmed Damage Evolution in Compacted Graphite Iron during Thermo-Mechanical Fatigue Testing
title_sort damage evolution in compacted graphite iron during thermo-mechanical fatigue testing
description Thermo-mechanical fatigue (TMF) properties of a compacted graphite iron (CGI) in an out-of-phase (OP) configuration are investigated for different maximum temperatures and mechanical strain ranges. Furthermore, the stress-strain hysteresis loops are analysed and in particular the unloading modulus, i.e. the elastic modulus measured during specimen unloading, is obtained from each cycle. This material parameter has earlier been explicitly related to the amount of microcracking in cast irons. The results show that the unloading modulus linearly declines with the numbers of cycles in all tests performed. In addition, the rate of change of the unloading modulus is closely related to the number of cycles to failure. Accordingly, it is concluded that microcracks are independently propagated by fatigue until a point of rapid crack-linking resulting in the ultimate failure. This is supported by microstructural analyses consisting of optical microscope images taken at different stages throughout the life of a specimen.
publisher INTEMA - UNMdP-CONICET
publishDate 2014
url 10 Th International Symposium on the Science and Processing of Cast Iron. 2014. Argentina: Mar del Plata 10 to 13th of November.
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AT skoglundp damageevolutionincompactedgraphiteironduringthermomechanicalfatiguetesting
AT moverarej damageevolutionincompactedgraphiteironduringthermomechanicalfatiguetesting
bdutipo_str Revistas
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