Comparison of testing of susceptibility to solidification cracking of ferritic stainless steels using two methods
| dc.contributor.author | Konadu, David Sasu | |
| dc.contributor.author | Pistorius, Pieter Georg Hendrik | |
| dc.contributor.email | pieter.pistorius@up.ac.za | en_ZA |
| dc.date.accessioned | 2020-05-11T09:36:06Z | |
| dc.date.issued | 2020-06 | |
| dc.description.abstract | The 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.department | Materials Science and Metallurgical Engineering | en_ZA |
| dc.description.embargo | 2021-04-10 | |
| dc.description.librarian | hj2020 | en_ZA |
| dc.description.sponsorship | Office 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.uri | https://link.springer.com/journal/40194 | en_ZA |
| dc.identifier.citation | Konadu, 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.issn | 0043-2288 | |
| dc.identifier.other | 10.1007/s40194-020-00888-1 | |
| dc.identifier.uri | http://hdl.handle.net/2263/74525 | |
| dc.language.iso | en | en_ZA |
| dc.publisher | Springer | en_ZA |
| dc.rights | © International Institute of Welding 2020. The original publication is available at : https://link.springer.com/journal/40194. | en_ZA |
| dc.subject | Modified varestraint-transvarestraint (MVT) | en_ZA |
| dc.subject | Solidification cracking | en_ZA |
| dc.subject | Microstructure | en_ZA |
| dc.subject | Ferritic stainless steel | en_ZA |
| dc.subject | Gas tungsten arc welding | en_ZA |
| dc.subject | Susceptibility | en_ZA |
| dc.subject.other | Engineering, built environment and information technology articles SDG-08 | |
| dc.subject.other | SDG-08: Decent work and economic growth | |
| dc.subject.other | Engineering, built environment and information technology articles SDG-09 | |
| dc.subject.other | SDG-09: Industry, innovation and infrastructure | |
| dc.subject.other | Engineering, built environment and information technology articles SDG-12 | |
| dc.subject.other | SDG-12: Responsible consumption and production | |
| dc.subject.other | Engineering, built environment and information technology articles SDG-13 | |
| dc.subject.other | SDG-13: Climate action | |
| dc.title | Comparison of testing of susceptibility to solidification cracking of ferritic stainless steels using two methods | en_ZA |
| dc.type | Postprint Article | en_ZA |