Influence of grain size distribution on the Hall–Petch relationship of welded structural steel

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Lehto, Pauli
dc.contributor.author Remes, Heikki
dc.contributor.author Saukkonen, Tapio
dc.contributor.author Hänninen, Hannu
dc.contributor.author Romanoff, Jani
dc.date.accessioned 2016-02-29T10:01:21Z
dc.date.available 2016-02-29T10:01:21Z
dc.date.issued 2014
dc.identifier.citation Lehto, Pauli & Remes, Heikki & Saukkonen, Tapio & Hänninen, Hannu & Romanoff, Jani. 2014. Influence of grain size distribution on the Hall–Petch relationship of welded structural steel. Materials Science and Engineering: A. Volume 592. 28-39. ISSN 0921-5093 (printed). DOI: 10.1016/j.msea.2013.10.094. en
dc.identifier.issn 0921-5093 (printed)
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/19801
dc.description.abstract The strength of polycrystalline metals increases with a decrease in grain size according to the Hall-Petch relationship. However, heterogeneous microstructures deviate from this relationship dependingon the distribution of grain sizes. This paper introduces a rule of mixtures based approach fordetermining the characteristic length of the microstructure for heterogeneous weld metal. Theproposed grain size parameter, the volume-weighted average grain size, is measured experimentallyfor nine structural steel weld metals and two base materials. The weld metals are found to have alarge variety of grain size distributions that are noticeably broader than those of the base material dueto differences in phase contents. The results show that the volume-weighted average grain size is ableto capture the influence of grain size distribution on the strength of welded structural steel. Based onthe experimental results, a modified Hall-Petch relationship is formulated for the strength predictionof heterogeneous microstructures. The modified relationship is also found to be applicable to datafrom the literature. en
dc.format.extent 28-39
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Elsevier BV en
dc.relation info:eu-repo/grantAgreement/SA/261286
dc.relation.ispartofseries Materials Science and Engineering: A en
dc.relation.ispartofseries Volume 592
dc.rights © 2014 Elsevier BV. This is the post print version of the following article: Lehto, Pauli & Remes, Heikki & Saukkonen, Tapio & Hänninen, Hannu & Romanoff, Jani. 2014. Influence of grain size distribution on the Hall–Petch relationship of welded structural steel. Materials Science and Engineering: A. Volume 592. 28-39. ISSN 0921-5093 (printed). DOI: 10.1016/j.msea.2013.10.094, which has been published in final form at http://www.sciencedirect.com/science/article/pii/S0921509313012094. en
dc.subject.other Mechanical engineering en
dc.subject.other Metallurgy en
dc.title Influence of grain size distribution on the Hall–Petch relationship of welded structural steel en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.rights.holder Elsevier BV
dc.contributor.school Insinööritieteiden korkeakoulu fi
dc.contributor.school School of Engineering en
dc.contributor.department Konetekniikan laitos fi
dc.contributor.department Department of Mechanical Engineering en
dc.subject.keyword grain size en
dc.subject.keyword Hall-Petch relationship en
dc.subject.keyword hardness en
dc.subject.keyword strength en
dc.subject.keyword steel en
dc.subject.keyword welding en
dc.identifier.urn URN:NBN:fi:aalto-201602251431
dc.type.dcmitype text en
dc.identifier.doi 10.1016/j.msea.2013.10.094
dc.type.version Post print en


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