Precipitation of Sigma and Chi Phases in Cast Standard Duplex Stainless Steel
This work deals with the problem of intermetallic phases in cast standard duplex steel ASTM A890 Gr 4A (generally known as 2205). The investigated steel was subjected to isothermal heat treatment in the range from 595 °C to 900 °C and in the duration from 15 minutes to 245 hours, and was also invest...
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences
2023-04-01
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| Series: | Archives of Foundry Engineering |
| Subjects: | |
| Online Access: | https://journals.pan.pl/Content/127009/PDF/AFE%202_2023_05_final%20version.pdf |
| _version_ | 1797792285972234240 |
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| author | M. Myška P. Bořil V. Krutiš V. Kaňa A. Zádĕra |
| author_facet | M. Myška P. Bořil V. Krutiš V. Kaňa A. Zádĕra |
| author_sort | M. Myška |
| collection | DOAJ |
| description | This work deals with the problem of intermetallic phases in cast standard duplex steel ASTM A890 Gr 4A (generally known as 2205). The investigated steel was subjected to isothermal heat treatment in the range from 595 °C to 900 °C and in the duration from 15 minutes to 245 hours, and was also investigated in terms of anisothermal (natural) cooling after casting into the mould. The precipitation starts at grain boundaries with a consistent ferrite transformation. The work is focused on the precipitation of the sigma phase (σ) and the chi phase (χ). Examination of the microstructure was conducted using light and scanning electron microscopy. Their statistical analysis was carried out using the results of the investigations of precipitation processes in the microstructure, both within the grains and at the grain boundaries. To illustrate this impact, the surface area of precipitates was evaluated. The percentage of these intermetallic phases was calculated by measuring their area using a computer image analysis system. Based on their observations, a combined time-temperature transformation (TTT) diagram with continuous cooling transformation (CCT) curves was created. |
| first_indexed | 2024-03-13T02:32:04Z |
| format | Article |
| id | doaj.art-48a09a3af1274cd4bbec0e7ae7c1f8af |
| institution | Directory Open Access Journal |
| issn | 2299-2944 |
| language | English |
| last_indexed | 2024-03-13T02:32:04Z |
| publishDate | 2023-04-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Foundry Engineering |
| spelling | doaj.art-48a09a3af1274cd4bbec0e7ae7c1f8af2023-06-29T13:46:09ZengPolish Academy of SciencesArchives of Foundry Engineering2299-29442023-04-01vol. 23No 22934https://doi.org/10.24425/afe.2023.144292Precipitation of Sigma and Chi Phases in Cast Standard Duplex Stainless SteelM. Myška0https://orcid.org/0000-0003-2079-9350P. Bořil1https://orcid.org/0000-0003-1791-7686V. Krutiš2https://orcid.org/0000-0001-9642-8965V. Kaňa3https://orcid.org/0000-0003-4870-1749A. Zádĕra4https://orcid.org/0000-0002-0555-370XBrno University of Technology, Czech RepublicBrno University of Technology, Czech RepublicBrno University of Technology, Czech RepublicBrno University of Technology, Czech RepublicBrno University of Technology, Czech RepublicThis work deals with the problem of intermetallic phases in cast standard duplex steel ASTM A890 Gr 4A (generally known as 2205). The investigated steel was subjected to isothermal heat treatment in the range from 595 °C to 900 °C and in the duration from 15 minutes to 245 hours, and was also investigated in terms of anisothermal (natural) cooling after casting into the mould. The precipitation starts at grain boundaries with a consistent ferrite transformation. The work is focused on the precipitation of the sigma phase (σ) and the chi phase (χ). Examination of the microstructure was conducted using light and scanning electron microscopy. Their statistical analysis was carried out using the results of the investigations of precipitation processes in the microstructure, both within the grains and at the grain boundaries. To illustrate this impact, the surface area of precipitates was evaluated. The percentage of these intermetallic phases was calculated by measuring their area using a computer image analysis system. Based on their observations, a combined time-temperature transformation (TTT) diagram with continuous cooling transformation (CCT) curves was created.https://journals.pan.pl/Content/127009/PDF/AFE%202_2023_05_final%20version.pdfprecipitationcast duplex steelintermetallicssigma phasechi phase |
| spellingShingle | M. Myška P. Bořil V. Krutiš V. Kaňa A. Zádĕra Precipitation of Sigma and Chi Phases in Cast Standard Duplex Stainless Steel Archives of Foundry Engineering precipitation cast duplex steel intermetallics sigma phase chi phase |
| title | Precipitation of Sigma and Chi Phases in Cast Standard Duplex Stainless Steel |
| title_full | Precipitation of Sigma and Chi Phases in Cast Standard Duplex Stainless Steel |
| title_fullStr | Precipitation of Sigma and Chi Phases in Cast Standard Duplex Stainless Steel |
| title_full_unstemmed | Precipitation of Sigma and Chi Phases in Cast Standard Duplex Stainless Steel |
| title_short | Precipitation of Sigma and Chi Phases in Cast Standard Duplex Stainless Steel |
| title_sort | precipitation of sigma and chi phases in cast standard duplex stainless steel |
| topic | precipitation cast duplex steel intermetallics sigma phase chi phase |
| url | https://journals.pan.pl/Content/127009/PDF/AFE%202_2023_05_final%20version.pdf |
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