Suppressing the use of critical raw materials in joining of AISI 304 stainless steel using activated tungsten inert gas welding

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dc.contributor.authorBalos, Sebastian
dc.contributor.authorDramicanin, Miroslav
dc.contributor.authorJanjatovic, Petar
dc.contributor.authorZabunov, Ivan
dc.contributor.authorPilic, Branka
dc.contributor.authorGoel, Saurav
dc.contributor.authorSzutkowska, Magdalena
dc.date.accessioned2019-11-08T11:46:28Z
dc.date.available2019-11-08T11:46:28Z
dc.date.issued2019-11-04
dc.description.abstractThe aim of this study was to study the influence of TiO2 coating for its efficacy during the activated-tungsten inert gas (TIG) welding and to suppress the use of consumables that are rich in critical raw materials. Post-welding penetration depth, particle size distribution, microstructure, and microhardness of welded samples were assessed. Based on these results, it was found that there is no direct correlation between the weld metal surface area and the coating. The particle size in the coating, although, seemed to have played an important role, e.g., nanoparticles resulted in an increased penetration depth and depth/width (D/W) ratio as opposed to the submicron-sized particles. The most optimal welding condition resulted when a mixture of submicron-sized and nanometric-sized particles were used. It was demonstrated by the Zeta analyser results that the micron particles rub the nanoparticles due to mechanical friction resulting in smaller oxide particle formation in the coating. Finally, the presence of Marangoni convection in TIG and reversed Marangoni convection in the activated TIG (A-TIG) process were proven by means of the microstructure analysis and measurement, which were found to be positively correlated.en_UK
dc.identifier.citationBalos S, Dramicanin M, Janjatovic P, et al., (2019) Suppressing the use of critical raw materials in joining of AISI 304 stainless steel using activated tungsten inert gas welding. Metals, Volume 9, Issue 11, November 2019, Article number 1187en_UK
dc.identifier.issn2075-4701
dc.identifier.urihttps://doi.org/10.3390/met9111187
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/14701
dc.language.isoenen_UK
dc.publisherMDPIen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectA-TIG weldingen_UK
dc.subjectparticle sizeen_UK
dc.subjectmetal flowen_UK
dc.subjectpenetration depthen_UK
dc.titleSuppressing the use of critical raw materials in joining of AISI 304 stainless steel using activated tungsten inert gas weldingen_UK
dc.typeArticleen_UK

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