dc.contributor.author | Ashton, Patrick J. | |
dc.contributor.author | Jun, Tea-Sung | |
dc.contributor.author | Zhang, Zhen | |
dc.contributor.author | Britton, T. Benjamin | |
dc.contributor.author | Harte, Annette M. | |
dc.contributor.author | Leen, Sean B. | |
dc.contributor.author | Dunne, Fionn P.E. | |
dc.date.accessioned | 2019-12-12T15:33:19Z | |
dc.date.available | 2019-12-12T15:33:19Z | |
dc.date.issued | 2017-03-24 | |
dc.identifier.citation | Ashton, Patrick J., Jun, Tea-Sung, Zhang, Zhen, Britton, T. Benjamin, Harte, Annette M., Leen, Sean B., & Dunne, Fionn P. E. (2017). The effect of the beta phase on the micromechanical response of dual-phase titanium alloys. International Journal of Fatigue, 100, 377-387. doi: https://doi.org/10.1016/j.ijfatigue.2017.03.020 | en_IE |
dc.identifier.issn | 0142-1123 | |
dc.identifier.uri | http://hdl.handle.net/10379/15640 | |
dc.description.abstract | This paper investigates the role of beta phase on the micro-mechanical behaviour of dual-phase titanium alloys, with particular emphasis on the phenomenon of cold dwell fatigue, which occurs in such alloys under room temperature conditions. A strain gradient crystal plasticity model is developed and calibrated against micro-pillar compression test data for a dual-phase alpha-beta specimen. The effects of key microstructural variables, such as relative beta lath orientation, on the micromechanical response of idealised alpha-beta colony microstructures are shown to be consistent with previously-published test data. A polycrystal study on the effects of the calibrated alpha-beta crystal plasticity model on the local micromechanical variables controlling cold dwell fatigue is presented. The presence of the alpha-beta phase is predicted to increase dwell fatigue resistance compared to a pure alpha phase microstructure. (C) 2017 Elsevier Ltd. All rights reserved. | en_IE |
dc.description.sponsorship | The authors would like to acknowledge the Irish Research Council and the Engineering and Physical Science Research Council (through HexMat) for funding this work and the Irish Centre for High-End Computing (ICHEC) for the provision of computational facilities. FPED wishes to acknowledge gratefully the provision of funding for his Royal Academy of Engineering/Rolls-Royce research chair. | en_IE |
dc.format | application/pdf | en_IE |
dc.language.iso | en | en_IE |
dc.publisher | Elsevier | en_IE |
dc.relation.ispartof | International Journal Of Fatigue | en |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Ireland | |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/3.0/ie/ | |
dc.subject | Crystal plasticity | en_IE |
dc.subject | Dwell fatigue | en_IE |
dc.subject | Length-scale effects | en_IE |
dc.subject | Dual-phase titanium alloy | en_IE |
dc.subject | STRAIN-RATE SENSITIVITY | en_IE |
dc.subject | PLASTICITY FE MODEL | en_IE |
dc.subject | CRYSTAL PLASTICITY | en_IE |
dc.subject | DISLOCATION DENSITY | en_IE |
dc.subject | DWELL-FATIGUE | en_IE |
dc.subject | TI ALLOYS | en_IE |
dc.subject | DEFORMATION | en_IE |
dc.subject | SIZE | en_IE |
dc.subject | TI-6AL-4V | en_IE |
dc.subject | MECHANISMS | en_IE |
dc.title | The effect of the beta phase on the micromechanical response of dual-phase titanium alloys | en_IE |
dc.type | Article | en_IE |
dc.date.updated | 2019-12-12T14:13:20Z | |
dc.identifier.doi | 10.1016/j.ijfatigue.2017.03.020 | |
dc.local.publishedsource | https://doi.org/10.1016/j.ijfatigue.2017.03.020 | en_IE |
dc.description.peer-reviewed | peer-reviewed | |
dc.contributor.funder | Irish Research Council | en_IE |
dc.contributor.funder | Engineering and Physical Sciences Research Council | en_IE |
dc.contributor.funder | Royal Academy of Engineering/Rolls-Royce | en_IE |
dc.internal.rssid | 12726264 | |
dc.local.contact | Sean Leen, Mechanical & Biomedical Eng, Eng-2051, New Engineering Building, Nui Galway. 5955 Email: sean.leen@nuigalway.ie | |
dc.local.copyrightchecked | Yes | |
dc.local.version | ACCEPTED | |
nui.item.downloads | 236 | |