Comparison of testing of susceptibility to solidification cracking of ferritic stainless steels using two methods

dc.contributor.authorKonadu, David Sasu
dc.contributor.authorPistorius, Pieter Georg Hendrik
dc.contributor.emailpieter.pistorius@up.ac.zaen_ZA
dc.date.accessioned2020-05-11T09:36:06Z
dc.date.issued2020-06
dc.description.abstractThe susceptibility to solidification cracking of unstabilized and stabilized ferritic stainless steels was investigated using self-restrained Houldcroft and Modified Varestraint-Transvarestraint (MVT) tests. Nine steel grades of unstabilized and stabilized ferritic stainless steels were used in this study. Seven steels comprising an unstabilized, two monostabilized (Ti and Nb) respectively, three dual stabilized (Ti + Nb), and a dual stabilized containing Mo were used for the self-restrained Houldcroft method. A monostabilized Nb and dual stabilized (Ti + Nb) grades (experimental alloys) and commercial grades of an unstabilized and a dual stabilized (Ti + Nb) ferritic stainless steels were employed in the MVT test. Autogenous gas tungsten arc welding at a speed of 6 mm/s, 3 mm/s, and 1 mm/s was done for the Houldcroft test and welding at a speed of 6 mm/s and 3 mm/s for MVT test. The results of the tests were evaluated by measuring the crack length, considering the microstructure and using multiple linear regression analysis of the crack length. The MVT method was successful in demonstrating the deleterious effect of Nb on ferritic stainless steels. Cracking of the Houldcroft samples was dependent on Ti, welding parameters, and the weld bead geometry.en_ZA
dc.description.departmentMaterials Science and Metallurgical Engineeringen_ZA
dc.description.embargo2021-04-10
dc.description.librarianhj2020en_ZA
dc.description.sponsorshipOffice of Research, Innovation, and Development (ORID), University of Ghana, Department of Research and Innovation Support (DRIS), and/or SAIW Center for Welding Engineering in the Department of Materials Science and Metallurgical Engineering at University of Pretoria.en_ZA
dc.description.urihttps://link.springer.com/journal/40194en_ZA
dc.identifier.citationKonadu, D.S., Pistorius, P.G.H. Comparison of testing of susceptibility to solidification cracking of ferritic stainless steels using two methods. Welding In the World 64, 987–997 (2020). https://doi.org/10.1007/s40194-020-00888-1.en_ZA
dc.identifier.issn0043-2288
dc.identifier.other10.1007/s40194-020-00888-1
dc.identifier.urihttp://hdl.handle.net/2263/74525
dc.language.isoenen_ZA
dc.publisherSpringeren_ZA
dc.rights© International Institute of Welding 2020. The original publication is available at : https://link.springer.com/journal/40194.en_ZA
dc.subjectModified varestraint-transvarestraint (MVT)en_ZA
dc.subjectSolidification crackingen_ZA
dc.subjectMicrostructureen_ZA
dc.subjectFerritic stainless steelen_ZA
dc.subjectGas tungsten arc weldingen_ZA
dc.subjectSusceptibilityen_ZA
dc.subject.otherEngineering, built environment and information technology articles SDG-08
dc.subject.otherSDG-08: Decent work and economic growth
dc.subject.otherEngineering, built environment and information technology articles SDG-09
dc.subject.otherSDG-09: Industry, innovation and infrastructure
dc.subject.otherEngineering, built environment and information technology articles SDG-12
dc.subject.otherSDG-12: Responsible consumption and production
dc.subject.otherEngineering, built environment and information technology articles SDG-13
dc.subject.otherSDG-13: Climate action
dc.titleComparison of testing of susceptibility to solidification cracking of ferritic stainless steels using two methodsen_ZA
dc.typePostprint Articleen_ZA

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