Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/4249
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Borrego, L. P. | - |
dc.contributor.author | Costa, J. M. | - |
dc.contributor.author | Silva, S. | - |
dc.contributor.author | Ferreira, J. M. | - |
dc.date.accessioned | 2008-09-01T10:44:39Z | - |
dc.date.available | 2008-09-01T10:44:39Z | - |
dc.date.issued | 2004 | en_US |
dc.identifier.citation | International Journal of Fatigue. 26:12 (2004) 1321-1331 | en_US |
dc.identifier.uri | https://hdl.handle.net/10316/4249 | - |
dc.description.abstract | Fatigue crack propagation tests in constant amplitude loading, as well as with single peak overloads, have been performed in AlMgSi1-T6 aluminium alloys with different Mn and Cr contents. Crack closure was monitored in all tests by the compliance technique using a pin microgauge. A moderate stress ratio and a strong material dependence effects on the fatigue crack growth were observed. These effects are discussed in terms of the different dominant closure mechanism (plasticity-induced closure or roughness-induced closure). Roughness-induced closure dominates crack closure in the alloys with higher contents of Mn and Cr elements. In the alloy with a lower content of these elements, plasticity-induced closure is dominant. When roughness-induced closure is the prime pre-overload closure mechanism, the retardation effect is decreased in comparison to when plasticity-induced closure is dominant. | en_US |
dc.description.uri | http://www.sciencedirect.com/science/article/B6V35-4CPD73M-3/1/e77472d32013689741e1021b5b6ffcce | en_US |
dc.format.mimetype | aplication/PDF | en |
dc.language.iso | eng | eng |
dc.rights | openAccess | eng |
dc.subject | Aluminium alloys | en_US |
dc.subject | Fatigue crack growth | en_US |
dc.subject | Retardation | en_US |
dc.subject | Microstructure | en_US |
dc.subject | Crack closure | en_US |
dc.subject | Overloads | en_US |
dc.title | Microstructure dependent fatigue crack growth in aged hardened aluminium alloys | en_US |
dc.type | article | en_US |
dc.identifier.doi | 10.1016/j.ijfatigue.2004.04.004 | - |
item.fulltext | Com Texto completo | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.openairetype | article | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
crisitem.author.researchunit | CEMMPRE - Centre for Mechanical Engineering, Materials and Processes | - |
crisitem.author.orcid | 0000-0003-0259-8926 | - |
Appears in Collections: | FCTUC Eng.Mecânica - Artigos em Revistas Internacionais |
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file848a8de7e07448f9a05932e08bfa39fe.pdf | 571.71 kB | Adobe PDF | View/Open |
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