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Combined finite element and phase field method for simulation of austenite grain growth in the heat-affected zone of a martensitic steel weld

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dc.contributor.author Shi, L.
dc.contributor.author Alexandratos, S.A.
dc.contributor.author O'Dowd, Noel P.
dc.date.accessioned 2019-08-07T08:24:12Z
dc.date.available 2019-08-07T08:24:12Z
dc.date.issued 2019
dc.identifier.uri http://hdl.handle.net/10344/7963
dc.description peer-reviewed en_US
dc.description.abstract Engineering components operating at high temperature often fail due to the initiation and growth of cracks in the heat-affected zone (HAZ) adjacent to a weld. Understanding the effects of microstructural evolution in the HAZ is important in order to predict and control the final properties of welded joints. This study presents a combined finite-element (FE) and phase-field (PF) method for simulation of austenite grain growth in the HAZ of a tempered martensite (P91) steel weld. The FE method is used to determine the thermal history of the HAZ during gas tungsten arc welding (GTAW) of a P91 steel plate. Then, the calculated thermal history is included in a PF model to simulate grain growth at various positions in the HAZ. The predicted mean grain size and grain distribution match well with experimental data for simulated welds from the literature. The work lays the foundation for optimising the process parameters in welding of P91 and other ferritic/martensitic steels in order to control the final HAZ microstructure. en_US
dc.language.iso eng en_US
dc.publisher Sage en_US
dc.relation.ispartofseries Proceedings of the Institution of Mechanical Engineers partL:journal of materials: design and applications; 233(1),pp. 13-27
dc.subject Phase field method en_US
dc.subject finite-element method en_US
dc.subject heat-affected zone en_US
dc.subject austenite grain growth en_US
dc.subject welding thermal process en_US
dc.title Combined finite element and phase field method for simulation of austenite grain growth in the heat-affected zone of a martensitic steel weld en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.identifier.doi 10.1177/1464420717750999
dc.contributor.sponsor SFI en_US
dc.contributor.sponsor ICHEC en_US
dc.relation.projectid SFI/14/IA/2604 en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US


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