Effect of Solution Heat Treatment by Induction on UNS S31803 Duplex Stainless Steel Joints Welded with the Autogenous TIG Process
In the oil and gas industry, the manufacture of equipment using materials that resist aggressive media is one of the greatest challenges. UNS S31803 duplex stainless steel is widely used for this purpose owing to its good combination of mechanical and corrosion resistance. The objective of this work...
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MDPI AG
2022-08-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/12/9/1450 |
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| author | Paula Munier Ferreira Elaine Cristina Pereira Flávia Wagner Pinheiro Sergio Neves Monteiro Afonso R. G. Azevedo |
| author_facet | Paula Munier Ferreira Elaine Cristina Pereira Flávia Wagner Pinheiro Sergio Neves Monteiro Afonso R. G. Azevedo |
| author_sort | Paula Munier Ferreira |
| collection | DOAJ |
| description | In the oil and gas industry, the manufacture of equipment using materials that resist aggressive media is one of the greatest challenges. UNS S31803 duplex stainless steel is widely used for this purpose owing to its good combination of mechanical and corrosion resistance. The objective of this work was to evaluate the effect of induction solution heat treatment using autogenous TIG welding on UNS S31803 DSS sheets. Sheet samples were subjected to two different treatment parameters for a duration of 10 s and at temperatures of 1050 and 1150 °C. The results obtained with the treatments were compared with those of the as-welded condition, which was the reference condition. Quantitative and qualitative analyses of the samples were carried out, in addition to microstructural characterization using confocal microscopy and a corrosion resistance study as per ASTM G48 standard. We observed that the best results were obtained with a treatment of 10 s at 1150 °C, which was able to eliminate chromium nitrides and re-establish the proper balance of the ferrite and austenite phases. In addition, the treatment was able to reduce hardness and provide welds free of cracks and discontinuities, also presenting a low corrosion rate. |
| first_indexed | 2024-03-09T23:09:46Z |
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| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T23:09:46Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-6aeec485197545d28ab138861c041f102023-11-23T17:46:15ZengMDPI AGMetals2075-47012022-08-01129145010.3390/met12091450Effect of Solution Heat Treatment by Induction on UNS S31803 Duplex Stainless Steel Joints Welded with the Autogenous TIG ProcessPaula Munier Ferreira0Elaine Cristina Pereira1Flávia Wagner Pinheiro2Sergio Neves Monteiro3Afonso R. G. Azevedo4LAMAV-Advanced Materials Laboratory, University of the Northern Rio de Janeiro, Av. Alberto Lamego, 2000, Campos dos Goytacazes 28013-602, BrazilLAMAV-Advanced Materials Laboratory, University of the Northern Rio de Janeiro, Av. Alberto Lamego, 2000, Campos dos Goytacazes 28013-602, BrazilLAMAV-Advanced Materials Laboratory, University of the Northern Rio de Janeiro, Av. Alberto Lamego, 2000, Campos dos Goytacazes 28013-602, BrazilMaterials Engineering Section (SE/8), IME-Materials Science Program, Military Engineering Institute, Praça Gen. Tibúrcio, 80, Urca, Rio de Janeiro 22290-270, BrazilLECIV-Civil Engineering Laboratory, UENF-State, University of the Northern Rio de Janeiro, Av. Alberto Lamego, 2000, Campos dos Goytacazes 28013-602, BrazilIn the oil and gas industry, the manufacture of equipment using materials that resist aggressive media is one of the greatest challenges. UNS S31803 duplex stainless steel is widely used for this purpose owing to its good combination of mechanical and corrosion resistance. The objective of this work was to evaluate the effect of induction solution heat treatment using autogenous TIG welding on UNS S31803 DSS sheets. Sheet samples were subjected to two different treatment parameters for a duration of 10 s and at temperatures of 1050 and 1150 °C. The results obtained with the treatments were compared with those of the as-welded condition, which was the reference condition. Quantitative and qualitative analyses of the samples were carried out, in addition to microstructural characterization using confocal microscopy and a corrosion resistance study as per ASTM G48 standard. We observed that the best results were obtained with a treatment of 10 s at 1150 °C, which was able to eliminate chromium nitrides and re-establish the proper balance of the ferrite and austenite phases. In addition, the treatment was able to reduce hardness and provide welds free of cracks and discontinuities, also presenting a low corrosion rate.https://www.mdpi.com/2075-4701/12/9/1450duplex stainless steelweldingcorrosionsolution heat treatment |
| spellingShingle | Paula Munier Ferreira Elaine Cristina Pereira Flávia Wagner Pinheiro Sergio Neves Monteiro Afonso R. G. Azevedo Effect of Solution Heat Treatment by Induction on UNS S31803 Duplex Stainless Steel Joints Welded with the Autogenous TIG Process Metals duplex stainless steel welding corrosion solution heat treatment |
| title | Effect of Solution Heat Treatment by Induction on UNS S31803 Duplex Stainless Steel Joints Welded with the Autogenous TIG Process |
| title_full | Effect of Solution Heat Treatment by Induction on UNS S31803 Duplex Stainless Steel Joints Welded with the Autogenous TIG Process |
| title_fullStr | Effect of Solution Heat Treatment by Induction on UNS S31803 Duplex Stainless Steel Joints Welded with the Autogenous TIG Process |
| title_full_unstemmed | Effect of Solution Heat Treatment by Induction on UNS S31803 Duplex Stainless Steel Joints Welded with the Autogenous TIG Process |
| title_short | Effect of Solution Heat Treatment by Induction on UNS S31803 Duplex Stainless Steel Joints Welded with the Autogenous TIG Process |
| title_sort | effect of solution heat treatment by induction on uns s31803 duplex stainless steel joints welded with the autogenous tig process |
| topic | duplex stainless steel welding corrosion solution heat treatment |
| url | https://www.mdpi.com/2075-4701/12/9/1450 |
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