Numerical Prediction for the Effects of Welding Interpass Temperature on the Thermal History and Microstructure of Duplex Stainless Steels
Numerical simulation was used to predict the thermal behavior and the resulting microstructure at the heat-affected zone (HAZ) of a 170 mm diameter and 3.5 mm thickness super duplex stainless steel (SDSS) UNS S32750 tube. In order to evaluate the thermal response from the model, a usual welding situ...
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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)
2023-05-01
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| Series: | Materials Research |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392023000100261&tlng=en |
| _version_ | 1797821926791446528 |
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| author | Carlos Roberto Xavier Horácio Guimarães Delgado Junior Matheus Gomes Rebello Raí Ramos Lisbôa Ana Carolina Martins Silva José Adilson de Castro |
| author_facet | Carlos Roberto Xavier Horácio Guimarães Delgado Junior Matheus Gomes Rebello Raí Ramos Lisbôa Ana Carolina Martins Silva José Adilson de Castro |
| author_sort | Carlos Roberto Xavier |
| collection | DOAJ |
| description | Numerical simulation was used to predict the thermal behavior and the resulting microstructure at the heat-affected zone (HAZ) of a 170 mm diameter and 3.5 mm thickness super duplex stainless steel (SDSS) UNS S32750 tube. In order to evaluate the thermal response from the model, a usual welding situation involving interpass temperature (IT) and its influence on the HAZ microstructure was exploited. Thus, two superimposed autogenous welding passes were simulated, the first clockwise with the tube in the room temperature and the second, counterclockwise, with the tube at the temperature of 250oC. Even subjected to successive thermal cycles and high interpass temperature, the proportion and morphology of the phases at the HAZ and Fusion Zone (FZ) did not present significant differences when comparing the two welding passes. Meanwhile, nitrogen losses should be avoided during welding in order to obtain a balanced microstructure in DSS welds, contributing to guarantee satisfactory toughness in addition to resistance to pitting corrosion. The predictions from the simulation were validated by using experimental results obtained from the autogenous TIG (Tungsten Inert Gas) process. |
| first_indexed | 2024-03-13T09:59:54Z |
| format | Article |
| id | doaj.art-8fe293ac0a99446f9b6c76ca84b54b9f |
| institution | Directory Open Access Journal |
| issn | 1516-1439 |
| language | English |
| last_indexed | 2024-03-13T09:59:54Z |
| publishDate | 2023-05-01 |
| 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-8fe293ac0a99446f9b6c76ca84b54b9f2023-05-23T07:31:14ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392023-05-012610.1590/1980-5373-mr-2022-0529Numerical Prediction for the Effects of Welding Interpass Temperature on the Thermal History and Microstructure of Duplex Stainless SteelsCarlos Roberto Xavierhttps://orcid.org/0000-0003-0801-5154Horácio Guimarães Delgado JuniorMatheus Gomes RebelloRaí Ramos LisbôaAna Carolina Martins SilvaJosé Adilson de Castrohttps://orcid.org/0000-0001-8054-9236Numerical simulation was used to predict the thermal behavior and the resulting microstructure at the heat-affected zone (HAZ) of a 170 mm diameter and 3.5 mm thickness super duplex stainless steel (SDSS) UNS S32750 tube. In order to evaluate the thermal response from the model, a usual welding situation involving interpass temperature (IT) and its influence on the HAZ microstructure was exploited. Thus, two superimposed autogenous welding passes were simulated, the first clockwise with the tube in the room temperature and the second, counterclockwise, with the tube at the temperature of 250oC. Even subjected to successive thermal cycles and high interpass temperature, the proportion and morphology of the phases at the HAZ and Fusion Zone (FZ) did not present significant differences when comparing the two welding passes. Meanwhile, nitrogen losses should be avoided during welding in order to obtain a balanced microstructure in DSS welds, contributing to guarantee satisfactory toughness in addition to resistance to pitting corrosion. The predictions from the simulation were validated by using experimental results obtained from the autogenous TIG (Tungsten Inert Gas) process.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392023000100261&tlng=enWelding interpass temperatureduplex stainless steelnumerical simulationthermal historymicrostructure |
| spellingShingle | Carlos Roberto Xavier Horácio Guimarães Delgado Junior Matheus Gomes Rebello Raí Ramos Lisbôa Ana Carolina Martins Silva José Adilson de Castro Numerical Prediction for the Effects of Welding Interpass Temperature on the Thermal History and Microstructure of Duplex Stainless Steels Materials Research Welding interpass temperature duplex stainless steel numerical simulation thermal history microstructure |
| title | Numerical Prediction for the Effects of Welding Interpass Temperature on the Thermal History and Microstructure of Duplex Stainless Steels |
| title_full | Numerical Prediction for the Effects of Welding Interpass Temperature on the Thermal History and Microstructure of Duplex Stainless Steels |
| title_fullStr | Numerical Prediction for the Effects of Welding Interpass Temperature on the Thermal History and Microstructure of Duplex Stainless Steels |
| title_full_unstemmed | Numerical Prediction for the Effects of Welding Interpass Temperature on the Thermal History and Microstructure of Duplex Stainless Steels |
| title_short | Numerical Prediction for the Effects of Welding Interpass Temperature on the Thermal History and Microstructure of Duplex Stainless Steels |
| title_sort | numerical prediction for the effects of welding interpass temperature on the thermal history and microstructure of duplex stainless steels |
| topic | Welding interpass temperature duplex stainless steel numerical simulation thermal history microstructure |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392023000100261&tlng=en |
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