University of Limerick Institutional Repository

The effect of ferrite phases on the micromechanical response and crack initiation in the inter-critical heat-affected zone of a welded 9Cr martensitic steel

DSpace Repository

Show simple item record

dc.contributor.author Li, M.
dc.contributor.author Sun, F.
dc.contributor.author Li, Dong-Feng
dc.contributor.author O'Donoghue, Padraic E.
dc.contributor.author Leen, Sean B.
dc.contributor.author O'Dowd, Noel P.
dc.date.accessioned 2019-08-07T09:48:17Z
dc.date.available 2019-08-07T09:48:17Z
dc.date.issued 2018
dc.identifier.uri http://hdl.handle.net/10344/7964
dc.description peer-reviewed en_US
dc.description.abstract This paper presents a crystal plasticity model to predict the tensile response and crack initiation in a mixed ferrite-martensite material with a low volume fraction of pro-eutectoid ferrite, representative of a welding-induced inter-critical heat-affected zone (IC-HAZ). It is shown that small volume fractions of ferrite can have a significant effect on material strength and ductility depending on the ferrite grain orientation. For relatively ‘soft’ ferrite grains, micro-cracks can grow across inter-ferrite ligaments with damage accumulating in the ferrite, leading to a reduction in strength and strain hardening, but with little influence on ductility; in contrast, relatively ‘hard’ ferrite grains act to accelerate micro-crack initiation, leading to reduced ductility, with negligible influence on strain hardening up to the maximum load. en_US
dc.language.iso eng en_US
dc.publisher Wiley en_US
dc.relation.ispartofseries Fatique and Fracture of Engineering Materials and Structures;41(6),pp. 1245-1259
dc.relation.uri https://onlinelibrary.wiley.com/doi/abs/10.1111/ffe.12768
dc.rights "This is the author version of the following article:The effect of ferrite phases on the micromechanical response and crack initiation in the inter-critical heat-affected zone of a welded 9Cr martensitic steel , which has been published in final form at https://onlinelibrary.wiley.com/doi/abs/10.1111/ffe.12768. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. http://olabout.wiley.com/WileyCDA/Section/id-828039.html#terms
dc.subject Crystal plasticity en_US
dc.subject IC-HAZ en_US
dc.subject dual phase en_US
dc.subject crystallographic orientation en_US
dc.title The effect of ferrite phases on the micromechanical response and crack initiation in the inter-critical heat-affected zone of a welded 9Cr martensitic steel 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 10.1111/ffe.12768
dc.contributor.sponsor SFI en_US
dc.contributor.sponsor ICHEC en_US
dc.relation.projectid 14/IA/2604 en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search ULIR


Browse

My Account

Statistics