Air carbon arc gouging and submerged-arc welding: Insights into sensitization and mechanical behavior of AISI 2205 duplex stainless steel
Repairing discontinuities and defective welds in AISI 2205 duplex stainless steel (DSS) is a critical procedure of significant technological and scientific interest given the complex metallurgical transformations involved. Air carbon arc gouging (ACAG) is a versatile and cost-effective technique for...
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Elsevier
2025-05-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425010944 |
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| author | Arthur de Bribean Guerra Tales Ferreira Claudemiro Bolfarini Guilherme Yuuki Koga |
| author_facet | Arthur de Bribean Guerra Tales Ferreira Claudemiro Bolfarini Guilherme Yuuki Koga |
| author_sort | Arthur de Bribean Guerra |
| collection | DOAJ |
| description | Repairing discontinuities and defective welds in AISI 2205 duplex stainless steel (DSS) is a critical procedure of significant technological and scientific interest given the complex metallurgical transformations involved. Air carbon arc gouging (ACAG) is a versatile and cost-effective technique for defect removal across various metals and geometries. However, its application in DSS has been limited due to concerns over sensitization and chloride-induced corrosion risks. This study investigates the effects of ACAG and submerged-arc welding (SAW) on the microstructure, sensitization behavior, and mechanical properties of 2205 DSS. Various gouging parameters and mechanical surface cleaning treatments—as-gouged, brushed, and rectified conditions—were assessed. Microstructural characterization and sensitization assessment were performed using double-loop electrochemical potentiokinetic reactivation (DL-EPR). Additionally, the influence of two weld joint geometries (“X” and “V”) on microstructure, sensitization, and mechanical performance was analyzed. Results indicate that as-gouged surfaces exhibit elevated sensitization risks, while welded joints remain resistant. Mechanical testing demonstrated tensile strengths exceeding 750 MPa in both gouged and welded joints. This study provides new insights into optimizing ACAG and SAW repair strategies for 2205 DSS, particularly for applications in the petrochemical and offshore industries. |
| format | Article |
| id | doaj-art-eec17ad6634a4e9bbe1fd914c8a93ee3 |
| institution | DOAJ |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-eec17ad6634a4e9bbe1fd914c8a93ee32025-08-20T03:13:45ZengElsevierJournal of Materials Research and Technology2238-78542025-05-01366196621810.1016/j.jmrt.2025.04.273Air carbon arc gouging and submerged-arc welding: Insights into sensitization and mechanical behavior of AISI 2205 duplex stainless steelArthur de Bribean Guerra0Tales Ferreira1Claudemiro Bolfarini2Guilherme Yuuki Koga3Federal University of São Carlos, Department of Materials Science and Engineering, Rod. Washington Luís, São Carlos, SP, CEP 13565–905, Brazil; Federal University of São Carlos, Graduate Program in Materials Science and Engineering, Rod. Washington Luís, São Carlos, SP, CEP 13565–905, Brazil; Federal University of São Carlos, Center for Characterization and Development of Materials (CCDM), Rod. Washington Luís, São Carlos, SP, CEP 13565–905, Brazil; Corresponding author. Federal University of São Carlos, Department of Materials Science and Engineering, Rod. Washington Luís, São Carlos, SP, CEP 13565–905, Brazil.Federal University of São Carlos, Department of Materials Science and Engineering, Rod. Washington Luís, São Carlos, SP, CEP 13565–905, Brazil; Federal University of São Carlos, Graduate Program in Materials Science and Engineering, Rod. Washington Luís, São Carlos, SP, CEP 13565–905, BrazilFederal University of São Carlos, Department of Materials Science and Engineering, Rod. Washington Luís, São Carlos, SP, CEP 13565–905, Brazil; Federal University of São Carlos, Graduate Program in Materials Science and Engineering, Rod. Washington Luís, São Carlos, SP, CEP 13565–905, BrazilFederal University of São Carlos, Department of Materials Science and Engineering, Rod. Washington Luís, São Carlos, SP, CEP 13565–905, Brazil; Federal University of São Carlos, Graduate Program in Materials Science and Engineering, Rod. Washington Luís, São Carlos, SP, CEP 13565–905, BrazilRepairing discontinuities and defective welds in AISI 2205 duplex stainless steel (DSS) is a critical procedure of significant technological and scientific interest given the complex metallurgical transformations involved. Air carbon arc gouging (ACAG) is a versatile and cost-effective technique for defect removal across various metals and geometries. However, its application in DSS has been limited due to concerns over sensitization and chloride-induced corrosion risks. This study investigates the effects of ACAG and submerged-arc welding (SAW) on the microstructure, sensitization behavior, and mechanical properties of 2205 DSS. Various gouging parameters and mechanical surface cleaning treatments—as-gouged, brushed, and rectified conditions—were assessed. Microstructural characterization and sensitization assessment were performed using double-loop electrochemical potentiokinetic reactivation (DL-EPR). Additionally, the influence of two weld joint geometries (“X” and “V”) on microstructure, sensitization, and mechanical performance was analyzed. Results indicate that as-gouged surfaces exhibit elevated sensitization risks, while welded joints remain resistant. Mechanical testing demonstrated tensile strengths exceeding 750 MPa in both gouged and welded joints. This study provides new insights into optimizing ACAG and SAW repair strategies for 2205 DSS, particularly for applications in the petrochemical and offshore industries.http://www.sciencedirect.com/science/article/pii/S2238785425010944FailureRepairMechanical propertiesIntergranular corrosionChloride-induced corrosionOil and gas |
| spellingShingle | Arthur de Bribean Guerra Tales Ferreira Claudemiro Bolfarini Guilherme Yuuki Koga Air carbon arc gouging and submerged-arc welding: Insights into sensitization and mechanical behavior of AISI 2205 duplex stainless steel Journal of Materials Research and Technology Failure Repair Mechanical properties Intergranular corrosion Chloride-induced corrosion Oil and gas |
| title | Air carbon arc gouging and submerged-arc welding: Insights into sensitization and mechanical behavior of AISI 2205 duplex stainless steel |
| title_full | Air carbon arc gouging and submerged-arc welding: Insights into sensitization and mechanical behavior of AISI 2205 duplex stainless steel |
| title_fullStr | Air carbon arc gouging and submerged-arc welding: Insights into sensitization and mechanical behavior of AISI 2205 duplex stainless steel |
| title_full_unstemmed | Air carbon arc gouging and submerged-arc welding: Insights into sensitization and mechanical behavior of AISI 2205 duplex stainless steel |
| title_short | Air carbon arc gouging and submerged-arc welding: Insights into sensitization and mechanical behavior of AISI 2205 duplex stainless steel |
| title_sort | air carbon arc gouging and submerged arc welding insights into sensitization and mechanical behavior of aisi 2205 duplex stainless steel |
| topic | Failure Repair Mechanical properties Intergranular corrosion Chloride-induced corrosion Oil and gas |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425010944 |
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