Formation of hydrogen blisters during the solution treatment for aluminum alloys
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , |
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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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 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/other |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
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publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/232678 |
dc.identifier.issn.pt_BR.fl_str_mv |
2176-1515 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001133960 |
identifier_str_mv |
2176-1515 001133960 |
url |
http://hdl.handle.net/10183/232678 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Tecnologia em metalurgia, materiais e mineração. São Paulo, SP. Vol. 18 (2021), Art. e2374, 9 p. |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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