Effect of open die forging and cooling rate on the precipitation of secondary phases and corrosion properties of a cast UNS S32760 super duplex stainless steel
This study investigates the effect of hot plastic deformation on the precipitation kinetics of secondary phases in cast UNS S32760 super duplex stainless steel (SDSS). Due to their dual-phase morphology and composition, the SDSS are characterized by a favourable compromise between corrosion resistan...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-11-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424027613 |
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| author | E. Pitacco R. Bertolini E. Ghinatti L. Pezzato C. Gennari I. Calliari M. Pigato |
| author_facet | E. Pitacco R. Bertolini E. Ghinatti L. Pezzato C. Gennari I. Calliari M. Pigato |
| author_sort | E. Pitacco |
| collection | DOAJ |
| description | This study investigates the effect of hot plastic deformation on the precipitation kinetics of secondary phases in cast UNS S32760 super duplex stainless steel (SDSS). Due to their dual-phase morphology and composition, the SDSS are characterized by a favourable compromise between corrosion resistance and mechanical properties. However, during thermomechanical processing, the precipitation of intermetallic phases such as sigma, chi and chromium nitrides can occur, potentially affecting their overall performance. This research focuses on evaluating the effect of open-die forging on the precipitation of secondary phases in cast UNS S32760 during continuous cooling. Hot forging simulations are performed at a temperature of 1100 °C followed by different cooling rates. Microstructural analysis, phase amounts quantification and corrosion tests are employed to quantify and investigate the effect of secondary phases on mechanical and corrosion properties. The results reveal a significantly higher degree of sensitization in samples subjected to hot plastic deformation. The findings provide new valuable insights on the existing knowledge gap about the interplay between hot plastic deformation, secondary phase precipitation kinetics and the corrosion behaviour of super duplex stainless steels, contributing to the understanding of their performance in demanding chloride-rich environments. |
| format | Article |
| id | doaj-art-33ecdf8b7b5e449c80a922f5acff3ec0 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-33ecdf8b7b5e449c80a922f5acff3ec02024-12-26T08:56:03ZengElsevierJournal of Materials Research and Technology2238-78542024-11-0133999210002Effect of open die forging and cooling rate on the precipitation of secondary phases and corrosion properties of a cast UNS S32760 super duplex stainless steelE. Pitacco0R. Bertolini1E. Ghinatti2L. Pezzato3C. Gennari4I. Calliari5M. Pigato6Department of Industrial Engineering, University of Padova, Via F. Marzolo 9, 35131, Padova, Italy; Corresponding author.Department of Industrial Engineering, University of Padova, Via Venezia 1, 35131, Padova, ItalyDepartment of Industrial Engineering, University of Padova, Via Venezia 1, 35131, Padova, ItalyDepartment of Industrial Engineering, University of Padova, Via F. Marzolo 9, 35131, Padova, Italy; Institute of Condensed Matter Chemistry and Energy Technologies (ICMATE), National Research Council of Italy, C.so Stati Uniti 4, Padova, IT-35127, ItalyDepartment of Industrial Engineering, University of Padova, Via F. Marzolo 9, 35131, Padova, ItalyDepartment of Industrial Engineering, University of Padova, Via F. Marzolo 9, 35131, Padova, ItalyDepartment of Industrial Engineering, University of Padova, Via F. Marzolo 9, 35131, Padova, ItalyThis study investigates the effect of hot plastic deformation on the precipitation kinetics of secondary phases in cast UNS S32760 super duplex stainless steel (SDSS). Due to their dual-phase morphology and composition, the SDSS are characterized by a favourable compromise between corrosion resistance and mechanical properties. However, during thermomechanical processing, the precipitation of intermetallic phases such as sigma, chi and chromium nitrides can occur, potentially affecting their overall performance. This research focuses on evaluating the effect of open-die forging on the precipitation of secondary phases in cast UNS S32760 during continuous cooling. Hot forging simulations are performed at a temperature of 1100 °C followed by different cooling rates. Microstructural analysis, phase amounts quantification and corrosion tests are employed to quantify and investigate the effect of secondary phases on mechanical and corrosion properties. The results reveal a significantly higher degree of sensitization in samples subjected to hot plastic deformation. The findings provide new valuable insights on the existing knowledge gap about the interplay between hot plastic deformation, secondary phase precipitation kinetics and the corrosion behaviour of super duplex stainless steels, contributing to the understanding of their performance in demanding chloride-rich environments.http://www.sciencedirect.com/science/article/pii/S2238785424027613Super duplex stainless steelOpen die forgingSensitizationSecondary phase precipitationContinuous coolingDynamic recrystallization |
| spellingShingle | E. Pitacco R. Bertolini E. Ghinatti L. Pezzato C. Gennari I. Calliari M. Pigato Effect of open die forging and cooling rate on the precipitation of secondary phases and corrosion properties of a cast UNS S32760 super duplex stainless steel Journal of Materials Research and Technology Super duplex stainless steel Open die forging Sensitization Secondary phase precipitation Continuous cooling Dynamic recrystallization |
| title | Effect of open die forging and cooling rate on the precipitation of secondary phases and corrosion properties of a cast UNS S32760 super duplex stainless steel |
| title_full | Effect of open die forging and cooling rate on the precipitation of secondary phases and corrosion properties of a cast UNS S32760 super duplex stainless steel |
| title_fullStr | Effect of open die forging and cooling rate on the precipitation of secondary phases and corrosion properties of a cast UNS S32760 super duplex stainless steel |
| title_full_unstemmed | Effect of open die forging and cooling rate on the precipitation of secondary phases and corrosion properties of a cast UNS S32760 super duplex stainless steel |
| title_short | Effect of open die forging and cooling rate on the precipitation of secondary phases and corrosion properties of a cast UNS S32760 super duplex stainless steel |
| title_sort | effect of open die forging and cooling rate on the precipitation of secondary phases and corrosion properties of a cast uns s32760 super duplex stainless steel |
| topic | Super duplex stainless steel Open die forging Sensitization Secondary phase precipitation Continuous cooling Dynamic recrystallization |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424027613 |
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