Formation of hydrogen blisters during the solution treatment for aluminum alloys

Detalhes bibliográficos
Autor(a) principal: Diehl, Daniel
Data de Publicação: 2021
Outros Autores: Schneider, Eduardo Luís, Clarke, Thomas Gabriel Rosauro
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/232678
Resumo: The solution treatment of aluminum alloys can be restricted by the presence of porosity defects caused by the moisture present in the process or by the hydrated front on the material surface. Hydrogen blisters cause deleterious effects on mechanical properties and surface finish. However, the formation of bubbles in solid aluminum is not caused only by the known reaction 2Al+3H2 O=3H2 +Al2 O3 , as it does not explain the interaction of the aluminum oxide layer with the formation mechanisms. In addition, the literature approaches show that there is more than one mechanism for the formation of these defects, but no work has made an association between them. Thus, the objective of this work is to carry out extensive research on the state of the art of hydrogen blister formation in aluminum alloys during the solubilization heat treatment. Contemplating different proposed mechanisms of bubble formation on the surface and structure, the analysis of this association of approaches indicated that the mechanisms depend on both permeability, where the hydrated oxide front creates passage for the formation of blister in the sublayer, as well as diffusion and hydrogen solubility in the microstructure.
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spelling Diehl, DanielSchneider, Eduardo LuísClarke, Thomas Gabriel Rosauro2021-12-09T04:34:16Z20212176-1515http://hdl.handle.net/10183/232678001133960The solution treatment of aluminum alloys can be restricted by the presence of porosity defects caused by the moisture present in the process or by the hydrated front on the material surface. Hydrogen blisters cause deleterious effects on mechanical properties and surface finish. However, the formation of bubbles in solid aluminum is not caused only by the known reaction 2Al+3H2 O=3H2 +Al2 O3 , as it does not explain the interaction of the aluminum oxide layer with the formation mechanisms. In addition, the literature approaches show that there is more than one mechanism for the formation of these defects, but no work has made an association between them. Thus, the objective of this work is to carry out extensive research on the state of the art of hydrogen blister formation in aluminum alloys during the solubilization heat treatment. Contemplating different proposed mechanisms of bubble formation on the surface and structure, the analysis of this association of approaches indicated that the mechanisms depend on both permeability, where the hydrated oxide front creates passage for the formation of blister in the sublayer, as well as diffusion and hydrogen solubility in the microstructure.application/pdfengTecnologia em metalurgia, materiais e mineração. São Paulo, SP. Vol. 18 (2021), Art. e2374, 9 p.Ligas de alumínioTratamento térmicoBolhasAluminum alloysHeat treatmentHydrogenOxidationBlisterFormation of hydrogen blisters during the solution treatment for aluminum alloysinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001133960.pdf.txt001133960.pdf.txtExtracted Texttext/plain32722http://www.lume.ufrgs.br/bitstream/10183/232678/2/001133960.pdf.txted2548919535267fe930b1e1fe09db87MD52ORIGINAL001133960.pdfTexto completoapplication/pdf1529195http://www.lume.ufrgs.br/bitstream/10183/232678/1/001133960.pdfee17ced2af8ee9e210ad9b65b391c510MD5110183/2326782022-11-02 04:56:13.528114oai:www.lume.ufrgs.br:10183/232678Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2022-11-02T07:56:13Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Formation of hydrogen blisters during the solution treatment for aluminum alloys
title Formation of hydrogen blisters during the solution treatment for aluminum alloys
spellingShingle Formation of hydrogen blisters during the solution treatment for aluminum alloys
Diehl, Daniel
Ligas de alumínio
Tratamento térmico
Bolhas
Aluminum alloys
Heat treatment
Hydrogen
Oxidation
Blister
title_short Formation of hydrogen blisters during the solution treatment for aluminum alloys
title_full Formation of hydrogen blisters during the solution treatment for aluminum alloys
title_fullStr Formation of hydrogen blisters during the solution treatment for aluminum alloys
title_full_unstemmed Formation of hydrogen blisters during the solution treatment for aluminum alloys
title_sort Formation of hydrogen blisters during the solution treatment for aluminum alloys
author Diehl, Daniel
author_facet Diehl, Daniel
Schneider, Eduardo Luís
Clarke, Thomas Gabriel Rosauro
author_role author
author2 Schneider, Eduardo Luís
Clarke, Thomas Gabriel Rosauro
author2_role author
author
dc.contributor.author.fl_str_mv Diehl, Daniel
Schneider, Eduardo Luís
Clarke, Thomas Gabriel Rosauro
dc.subject.por.fl_str_mv Ligas de alumínio
Tratamento térmico
Bolhas
topic Ligas de alumínio
Tratamento térmico
Bolhas
Aluminum alloys
Heat treatment
Hydrogen
Oxidation
Blister
dc.subject.eng.fl_str_mv Aluminum alloys
Heat treatment
Hydrogen
Oxidation
Blister
description The solution treatment of aluminum alloys can be restricted by the presence of porosity defects caused by the moisture present in the process or by the hydrated front on the material surface. Hydrogen blisters cause deleterious effects on mechanical properties and surface finish. However, the formation of bubbles in solid aluminum is not caused only by the known reaction 2Al+3H2 O=3H2 +Al2 O3 , as it does not explain the interaction of the aluminum oxide layer with the formation mechanisms. In addition, the literature approaches show that there is more than one mechanism for the formation of these defects, but no work has made an association between them. Thus, the objective of this work is to carry out extensive research on the state of the art of hydrogen blister formation in aluminum alloys during the solubilization heat treatment. Contemplating different proposed mechanisms of bubble formation on the surface and structure, the analysis of this association of approaches indicated that the mechanisms depend on both permeability, where the hydrated oxide front creates passage for the formation of blister in the sublayer, as well as diffusion and hydrogen solubility in the microstructure.
publishDate 2021
dc.date.accessioned.fl_str_mv 2021-12-09T04:34:16Z
dc.date.issued.fl_str_mv 2021
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dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Tecnologia em metalurgia, materiais e mineração. São Paulo, SP. Vol. 18 (2021), Art. e2374, 9 p.
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