Aluminium-assisted alloying of carbon steel in submerged arc welding : application of Al-Cr-Ti-Cu unconstrained metal powders

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dc.contributor.author Coetsee, Theresa
dc.contributor.author De Bruin, Frederik
dc.date.accessioned 2023-10-12T08:00:14Z
dc.date.available 2023-10-12T08:00:14Z
dc.date.issued 2022-02-24
dc.description DATA AVAILABILITY STATEMENT : The data sets presented in this study are availabable upon request to the corresponding author. en_US
dc.description.abstract Al assisted alloying of carbon steel in Submerged Arc Welding (SAW) by Al-Cr-Ti-Cu unconstrained metal powders is applied. A base case without metal powder additions is compared to two metal powder addition schedules, Al-Cu-Ti and Al-Cu-Ti-Cr. Al powder is used as a deoxidiser element to control the oxygen partial pressure at the weld pool–molten flux interface to ensure that most of the Ti and Cr metal powder is transferred into the weld pool and that the weld metal ppm O is controlled within acceptable limits of 200 to 500 ppm O. The likely sequence of alloy melt formation is deduced from the relevant alloy phase diagrams. The effect of Fe addition into the initial Al-Cu-Ti and Al-Cu-Ti-Cr alloy melt is illustrated in thermochemical calculations. Increased metal deposition productivity with metal powder addition in SAW is confirmed. The metal deposition rates increased by 19% and 40% when Al-Cu-Ti and Al-Cu-Ti-Cr powders were applied at the same weld heat input used in the absence of metal powder additions. en_US
dc.description.department Materials Science and Metallurgical Engineering en_US
dc.description.librarian am2023 en_US
dc.description.sponsorship The National Research Foundation of South Africa. en_US
dc.description.uri https://www.mdpi.com/journal/processes en_US
dc.identifier.citation Coetsee, T.; De Bruin, F. Aluminium-Assisted Alloying of Carbon Steel in Submerged Arc Welding: Application of Al-Cr-Ti-Cu Unconstrained Metal Powders. Processes 2022, 10, 452. https://DOI.org/10.3390/pr10030452. en_US
dc.identifier.issn 2227-9717 (online)
dc.identifier.other 10.3390/pr10030452
dc.identifier.uri http://hdl.handle.net/2263/92859
dc.language.iso en en_US
dc.publisher MDPI en_US
dc.rights © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license. en_US
dc.subject Oxygen potential en_US
dc.subject Titanium en_US
dc.subject Aluminium en_US
dc.subject Copper en_US
dc.subject Chromium en_US
dc.subject Metal powder en_US
dc.subject Submerged arc welding en_US
dc.subject Submerged arc welding (SAW) en_US
dc.title Aluminium-assisted alloying of carbon steel in submerged arc welding : application of Al-Cr-Ti-Cu unconstrained metal powders en_US
dc.type Article en_US


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