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The effect of metal transfer modes and shielding gas composition on the emission of ultraafine particles in MAG steel welding

dc.contributor.authorGomes, João
dc.contributor.authorMiranda, R. M.
dc.contributor.authorCarvalho, P. A.
dc.contributor.authorQuintino, M. L.
dc.date.accessioned2015-08-24T11:08:04Z
dc.date.available2015-08-24T11:08:04Z
dc.date.issued2014-04
dc.description.abstractThe present study aims to characterize ultrafine particles emitted during gas metal arc welding of mild steel and stainless steel, using different shielding gas mixtures, and to evaluate the effect of metal transfer modes, controlled by both processing parameters and shielding gas composition, on the quantity and morphology of the ultrafine particles. It was found that the amount of emitted ultrafine particles (measured by particle number and alveolar deposited surface area) are clearly dependent from the main welding parameters, namely the current intensity and the heat input of the Welding process. The emission of airborne ultrafine particles increases with the current intensity as fume formation rate does. When comparing the shielding gas mixtures, higher emissions were observed for more oxidizing mixtures, that is, with higher CO2 content, which means that these mixtures originate higher concentrations of ultrafine particles (as measured by number of particles. by cubic centimeter of air) and higher values of alveolar deposited surface area of particles, thus resulting in a more hazardous condition regarding welders exposure.por
dc.identifier.citationGOMES; João Fernando Pereira; [et al] – The effect of metal transfer modes and shielding gas composition on the emission of ultraafine particles in MAG steel welding. Soldagem & Inspeção. ISSN: 0104-9224. Vol. 19, nr. 2 (2014), pp. 168-176por
dc.identifier.doi10.1590/0104-9224/S11902.09
dc.identifier.issn0104-9224
dc.identifier.issn1980-6973
dc.identifier.urihttp://hdl.handle.net/10400.21/4936
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherAssociação Brasil Soldagempor
dc.subjectGas metal arc weldingpor
dc.subjectWelding fumespor
dc.subjectUltrafine particlespor
dc.subjectAlveolar deposited surface areapor
dc.titleThe effect of metal transfer modes and shielding gas composition on the emission of ultraafine particles in MAG steel weldingpor
dc.title.alternativeEfeito dos modos de transferência e da composição de gás de protecção na emissão de partículas ultrafinas na soldadura MAG de açospor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceSão Paulopor
oaire.citation.endPage176por
oaire.citation.issue2por
oaire.citation.startPage168por
oaire.citation.titleSoldagem & Inspeçãopor
oaire.citation.volume19por
person.familyNameGomes
person.givenNameJoão
person.identifier60203
person.identifier.ciencia-id0212-E6D6-566C
person.identifier.orcid0000-0003-2579-6669
person.identifier.scopus-author-id56113031900
rcaap.rightsclosedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublicatione44cd72e-bcbb-4612-a274-60cb1915bc0c
relation.isAuthorOfPublication.latestForDiscoverye44cd72e-bcbb-4612-a274-60cb1915bc0c

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