Influence of Deleterious Phases Precipitation in the Corrosion Resistance Measured by Double Loop Electrochemical Polarization Reactivation Test in Superduplex Stainless Steel
This work investigates the influence of deleterious phases precipitation on the corrosion resistance of two wrought superduplex stainless steels UNS S32750 with similar composition, but different grain sizes. Isothermal treatments were carried out to introduce different amounts of deleterious phases...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
2015-08-01
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| Series: | Materials Research |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392015000400740&tlng=en |
| _version_ | 1798015156731510784 |
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| author | Juan Manuel Pardal Sérgio Souto Maior Tavares Guttemberg Chagas de Souza Maria da Penha Cindra Fonseca Eduardo Ariel Ponzio Marcelo Camargo Severo de Macedo |
| author_facet | Juan Manuel Pardal Sérgio Souto Maior Tavares Guttemberg Chagas de Souza Maria da Penha Cindra Fonseca Eduardo Ariel Ponzio Marcelo Camargo Severo de Macedo |
| author_sort | Juan Manuel Pardal |
| collection | DOAJ |
| description | This work investigates the influence of deleterious phases precipitation on the corrosion resistance of two wrought superduplex stainless steels UNS S32750 with similar composition, but different grain sizes. Isothermal treatments were carried out to introduce different amounts of deleterious phases, such as chi (χ), sigma (σ) and secondary austenite (γ2). The specimens were tested by double loop electrochemical potentiodynamic reactivation test (DL-EPR). The kinetics of precipitation in the two steels was different due to the difference of the grain sizes. The results show a correlation between the sensitization degrees, measured by DL-EPR, with the amount of deleterious phases precipitated. |
| first_indexed | 2024-04-11T15:29:51Z |
| format | Article |
| id | doaj.art-46e6e409ca714b289584cbe3f1c9e680 |
| institution | Directory Open Access Journal |
| issn | 1516-1439 |
| language | English |
| last_indexed | 2024-04-11T15:29:51Z |
| publishDate | 2015-08-01 |
| publisher | Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) |
| record_format | Article |
| series | Materials Research |
| spelling | doaj.art-46e6e409ca714b289584cbe3f1c9e6802022-12-22T04:16:10ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392015-08-0118474074710.1590/1516-1439.001614Influence of Deleterious Phases Precipitation in the Corrosion Resistance Measured by Double Loop Electrochemical Polarization Reactivation Test in Superduplex Stainless SteelJuan Manuel PardalSérgio Souto Maior TavaresGuttemberg Chagas de SouzaMaria da Penha Cindra FonsecaEduardo Ariel PonzioMarcelo Camargo Severo de MacedoThis work investigates the influence of deleterious phases precipitation on the corrosion resistance of two wrought superduplex stainless steels UNS S32750 with similar composition, but different grain sizes. Isothermal treatments were carried out to introduce different amounts of deleterious phases, such as chi (χ), sigma (σ) and secondary austenite (γ2). The specimens were tested by double loop electrochemical potentiodynamic reactivation test (DL-EPR). The kinetics of precipitation in the two steels was different due to the difference of the grain sizes. The results show a correlation between the sensitization degrees, measured by DL-EPR, with the amount of deleterious phases precipitated.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392015000400740&tlng=ensuperduplex stainless steeldeleterious phases precipitationcorrosion resistanceDL-EPR tests |
| spellingShingle | Juan Manuel Pardal Sérgio Souto Maior Tavares Guttemberg Chagas de Souza Maria da Penha Cindra Fonseca Eduardo Ariel Ponzio Marcelo Camargo Severo de Macedo Influence of Deleterious Phases Precipitation in the Corrosion Resistance Measured by Double Loop Electrochemical Polarization Reactivation Test in Superduplex Stainless Steel Materials Research superduplex stainless steel deleterious phases precipitation corrosion resistance DL-EPR tests |
| title | Influence of Deleterious Phases Precipitation in the Corrosion Resistance Measured by Double Loop Electrochemical Polarization Reactivation Test in Superduplex Stainless Steel |
| title_full | Influence of Deleterious Phases Precipitation in the Corrosion Resistance Measured by Double Loop Electrochemical Polarization Reactivation Test in Superduplex Stainless Steel |
| title_fullStr | Influence of Deleterious Phases Precipitation in the Corrosion Resistance Measured by Double Loop Electrochemical Polarization Reactivation Test in Superduplex Stainless Steel |
| title_full_unstemmed | Influence of Deleterious Phases Precipitation in the Corrosion Resistance Measured by Double Loop Electrochemical Polarization Reactivation Test in Superduplex Stainless Steel |
| title_short | Influence of Deleterious Phases Precipitation in the Corrosion Resistance Measured by Double Loop Electrochemical Polarization Reactivation Test in Superduplex Stainless Steel |
| title_sort | influence of deleterious phases precipitation in the corrosion resistance measured by double loop electrochemical polarization reactivation test in superduplex stainless steel |
| topic | superduplex stainless steel deleterious phases precipitation corrosion resistance DL-EPR tests |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392015000400740&tlng=en |
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