Skip navigation
Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/18092
Full metadata record
DC FieldValueLanguage
dc.contributor.authorGaur V.-
dc.contributor.authorEnoki M.-
dc.contributor.authorOkada T.-
dc.contributor.authorYomogida S.-
dc.contributor.editorHenaff G.-
dc.date.accessioned2020-12-03T03:14:56Z-
dc.date.available2020-12-03T03:14:56Z-
dc.date.issued2018-
dc.identifier.citationProceedings of MATEC Web of Conferences, (2018)-
dc.identifier.issn2261236X-
dc.identifier.urihttps://doi.org/10.1051/matecconf/201816521013-
dc.identifier.urihttp://repository.iitr.ac.in/handle/123456789/18092-
dc.description.abstractIn this study we investigated the fatigue life and crack growth behavior of Al-5183 alloy. Microscopic analysis revealed nearly equi-axed grains and no texture in longitudinal or cross-sectional plane of the welded plates. Gas porosities with an average size of 45 μm, comparable to grain size (55 μm), were present and often initiate fatigue failures. Load-controlled cyclic tests at different stress-ratios (R = -1, -0.5, 0.1, 0.5. 0.7 and 0.8) revealed decrease in fatigue lives with increase in R-ratio. At R > 0.7, no fatigue failure could be observed, suggesting a probable mean-stress saturation effect on fatigue. Mean stress also tends to control the crack initiation sites: surface initiated failures at low mean stresses while sub-surface pores induced failures at higher mean stresses. Fatigue-crack growth tests on CT specimens at different R-ratios (0.1, 0.5 and 0.8) revealed reduction in crack growth rates (and in threshold values) with increasing R-ratio. The ΔK applied for pores responsible for fatigue failures were often lower than or near to the threshold values and also, the size of such pores was of order of magnitude of grain size, thus crack initiated from pores are short cracks and further tests are progress. © The Authors, published by EDP Sciences, 2018.-
dc.language.isoen_US-
dc.publisherEDP Sciences-
dc.relation.ispartofProceedings of MATEC Web of Conferences-
dc.subjectAluminum alloys-
dc.subjectFatigue crack propagation-
dc.subjectFatigue of materials-
dc.subjectGrain size and shape-
dc.subjectWelded steel structures-
dc.subjectWelding-
dc.subjectCrack growth behavior-
dc.subjectCrack initiation sites-
dc.subjectEqui-axed grains-
dc.subjectFatigue failures-
dc.subjectFatigue-crack-growth tests-
dc.subjectMicroscopic analysis-
dc.subjectSaturation effects-
dc.subjectSurface-initiated-
dc.subjectCracks-
dc.titleFatigue life and crack growth behavior of post welded Aluminum 5183 alloy-
dc.typeConference Paper-
dc.scopusid56229535200-
dc.scopusid7004847060-
dc.scopusid57210526304-
dc.scopusid57196470996-
dc.affiliationGaur, V., Department of Materials Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan-
dc.affiliationEnoki, M., Department of Materials Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan-
dc.affiliationOkada, T., Research and Development Division, UACJ Corporation, 3-1-12 Chitose, Minato-ku, Nagoya-city, Aichi Pref., 455-8670, Japan-
dc.affiliationYomogida, S., Research and Development Division, UACJ Corporation, 3-1-12 Chitose, Minato-ku, Nagoya-city, Aichi Pref., 455-8670, Japan-
dc.description.fundingThe authors are thankful to the Japanese research funding agency (JST) for funding this project through its Cross-ministerial Strategic Innovation Promotion (SIP), “Structural Materials for Innovation†program.-
dc.description.correspondingauthorGaur, V.; Department of Materials Engineering, University of Tokyo, 7-3-1 Hongo, Japan; email: gaur@rme.mm.t.u-tokyo.ac.jp-
dc.identifier.conferencedetails12th International Fatigue Congress, FATIGUE 2018, 27 May-1 Jun 2018-
Appears in Collections:Conference Publications [ME]

Files in This Item:
There are no files associated with this item.
Show simple item record


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.