Effect of solidification mode and morphology of microstructure on the hydrogen content of duplex stainless steel weld metal

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dc.contributor.authorKaçar, R.
dc.date.accessioned2024-09-29T16:21:06Z
dc.date.available2024-09-29T16:21:06Z
dc.date.issued2004
dc.departmentKarabük Üniversitesien_US
dc.description.abstractThe evolution rate of hydrogen from a duplex weld depends on sample geometry, temperature and microstructure. These factors have important consequences for the determination of hydrogen in duplex stainless steel welds. Because of the low hydrogen diffusibility and high hydrogen solubility in austenite, a standard method (BS 6693: 1988) which existed to determine the hydrogen content of ferritic steel welds as a means of assessing welding consumables, is not suitable for duplex welds. As a result of extensive research, a modified test method has been used involving encapsulation of the weld sample in Pyrex, evolution at 400 °C for 24 h, and followed by hydrogen analysis in an Oerlikon/Yanaco gas chromatograph. In this present work, the effect of solidification mode and microstructure on weld hydrogen content, and the evolution of hydrogen from such welds has been investigated by using experimental electrodes which are designed to give varying ferrite/austenite ratio in the welds. It was found that the measured weld hydrogen contents were almost constant since they arose from the flux/binder combinations which were the same for each type of experimental electrodes. Thus, the potential hydrogen from each type was the same and similar amounts became trapped during the rapid solidification of the weld pool, irrespective of final ferrite content. © 2003 Elsevier Ltd. All rights reserved.en_US
dc.description.sponsorshipZonguldak Karaelmas Universityen_US
dc.identifier.doi10.1016/S0261-3069(03)00169-9
dc.identifier.endpage9en_US
dc.identifier.issn0264-1275
dc.identifier.issue1en_US
dc.identifier.scopus2-s2.0-0345134702en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1en_US
dc.identifier.urihttps://doi.org/10.1016/S0261-3069(03)00169-9
dc.identifier.urihttps://hdl.handle.net/20.500.14619/9552
dc.identifier.volume25en_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Ltden_US
dc.relation.ispartofMaterials and Designen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectDuplex stainless steelen_US
dc.subjectHydrogen contenten_US
dc.subjectMicrostructure and ferrite contenten_US
dc.titleEffect of solidification mode and morphology of microstructure on the hydrogen content of duplex stainless steel weld metalen_US
dc.typeArticleen_US

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