Evaluation of erosion-corrosion resistance in Fe-Mn-Al austenitic steels

In this paper, the effects of Mn and Al against corrosion/errosion resistance of three samples of the Fe-Mn-Al austenitic alloys are evaluated. The samples have composition Fe-(4,9 ~ 11,0 wt. (%)) Al-(17,49 ~ 34,3 wt. (%)) Mn-(0,43 ~ 1,25 wt. (%))C, those were prepared in an induction furnace from h...

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Main Authors: William Arnulfo Aperador, Jorge Hernando Bautista Ruiz, Juan D. Betancurt
Format: Article
Language:English
Published: Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) 2012-01-01
Series:Materials Research
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392012005000179
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author William Arnulfo Aperador
Jorge Hernando Bautista Ruiz
Juan D. Betancurt
author_facet William Arnulfo Aperador
Jorge Hernando Bautista Ruiz
Juan D. Betancurt
author_sort William Arnulfo Aperador
collection DOAJ
description In this paper, the effects of Mn and Al against corrosion/errosion resistance of three samples of the Fe-Mn-Al austenitic alloys are evaluated. The samples have composition Fe-(4,9 ~ 11,0 wt. (%)) Al-(17,49 ~ 34,3 wt. (%)) Mn-(0,43 ~ 1,25 wt. (%))C, those were prepared in an induction furnace from high purity materials. The alloys were evaluated in a composed solution of NaCl 0,5 M and Silica in a special chamber and AISI 316 stainless steel as reference material. The electrochemical characterization was performed by Tafel curve polarizations technique. This microstructural characterization was by Scanning Electron Microscopy (SEM). It was observed the significant decrease in the corrosion rate for steels Fermanal with a lower percentage of aluminum and manganese under conditions of dynamic corrosion and erosion-corrosion. SEM allows assessment of the dominant damage mechanisms and corroborated the results obtained by electrochemical measurements.
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publishDate 2012-01-01
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spelling doaj.art-75142e8a904c4345ab6891274d843ab02022-12-21T23:42:24ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392012-01-01ahead010.1590/S1516-14392012005000179Evaluation of erosion-corrosion resistance in Fe-Mn-Al austenitic steelsWilliam Arnulfo AperadorJorge Hernando Bautista RuizJuan D. BetancurtIn this paper, the effects of Mn and Al against corrosion/errosion resistance of three samples of the Fe-Mn-Al austenitic alloys are evaluated. The samples have composition Fe-(4,9 ~ 11,0 wt. (%)) Al-(17,49 ~ 34,3 wt. (%)) Mn-(0,43 ~ 1,25 wt. (%))C, those were prepared in an induction furnace from high purity materials. The alloys were evaluated in a composed solution of NaCl 0,5 M and Silica in a special chamber and AISI 316 stainless steel as reference material. The electrochemical characterization was performed by Tafel curve polarizations technique. This microstructural characterization was by Scanning Electron Microscopy (SEM). It was observed the significant decrease in the corrosion rate for steels Fermanal with a lower percentage of aluminum and manganese under conditions of dynamic corrosion and erosion-corrosion. SEM allows assessment of the dominant damage mechanisms and corroborated the results obtained by electrochemical measurements.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392012005000179corrosionerosionsynergyfermanal
spellingShingle William Arnulfo Aperador
Jorge Hernando Bautista Ruiz
Juan D. Betancurt
Evaluation of erosion-corrosion resistance in Fe-Mn-Al austenitic steels
Materials Research
corrosion
erosion
synergy
fermanal
title Evaluation of erosion-corrosion resistance in Fe-Mn-Al austenitic steels
title_full Evaluation of erosion-corrosion resistance in Fe-Mn-Al austenitic steels
title_fullStr Evaluation of erosion-corrosion resistance in Fe-Mn-Al austenitic steels
title_full_unstemmed Evaluation of erosion-corrosion resistance in Fe-Mn-Al austenitic steels
title_short Evaluation of erosion-corrosion resistance in Fe-Mn-Al austenitic steels
title_sort evaluation of erosion corrosion resistance in fe mn al austenitic steels
topic corrosion
erosion
synergy
fermanal
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392012005000179
work_keys_str_mv AT williamarnulfoaperador evaluationoferosioncorrosionresistanceinfemnalausteniticsteels
AT jorgehernandobautistaruiz evaluationoferosioncorrosionresistanceinfemnalausteniticsteels
AT juandbetancurt evaluationoferosioncorrosionresistanceinfemnalausteniticsteels