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.author Balos, Sebastian
dc.contributor.author Dramicanin, Miroslav
dc.contributor.author Janjatovic, Petar
dc.contributor.author Zabunov, Ivan
dc.contributor.author Pilic, Branka
dc.contributor.author Goel, Saurav
dc.contributor.author Szutkowska, Magdalena
dc.date.accessioned 2019-11-08T11:46:28Z
dc.date.available 2019-11-08T11:46:28Z
dc.date.issued 2019-11-04
dc.identifier.citation Balos S, Dramicanin M, Janjatovic P, Zabunov I, Pilic B, Goel S & Szutkowska M (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, Article number 1187 en_UK
dc.identifier.issn 2075-4701
dc.identifier.uri https://doi.org/10.3390/met9111187
dc.identifier.uri http://dspace.lib.cranfield.ac.uk/handle/1826/14701
dc.description.abstract The 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.language.iso en en_UK
dc.publisher MDPI en_UK
dc.rights Attribution 4.0 International *
dc.rights.uri http://creativecommons.org/licenses/by/4.0/ *
dc.subject A-TIG welding en_UK
dc.subject particle size en_UK
dc.subject metal flow en_UK
dc.subject penetration depth en_UK
dc.title Suppressing the use of critical raw materials in joining of AISI 304 stainless steel using activated tungsten inert gas welding en_UK
dc.type Article en_UK


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