Microstructural evolution and precipitation behavior of the 0.1C-18Cr-1Al-1Si ferritic heat-resistant stainless steel during hot deformation
The 0.1C-18Cr-1Al-1Si ferritic heat-resistant stainless steel has attracted considerable attention to high-temperature applications due to its favorable combination of creep and oxidation resistance. In this paper, the microstructural evolution and precipitation behavior of the 0.1C-18Cr-1Al-1Si fer...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2020-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/ab7d0d |
| _version_ | 1797746460538699776 |
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| author | Yingbo Zhang Dening Zou Tongyu Wei Jiao Li Libo Tong Wei Zhang |
| author_facet | Yingbo Zhang Dening Zou Tongyu Wei Jiao Li Libo Tong Wei Zhang |
| author_sort | Yingbo Zhang |
| collection | DOAJ |
| description | The 0.1C-18Cr-1Al-1Si ferritic heat-resistant stainless steel has attracted considerable attention to high-temperature applications due to its favorable combination of creep and oxidation resistance. In this paper, the microstructural evolution and precipitation behavior of the 0.1C-18Cr-1Al-1Si ferritic heat-resistant stainless steel is studied from the compression deformation data in the temperature range of 850 °C–1050 °C and the strain rate range of 0.01–1 s ^−1 . Experimental results demonstrate that higher temperatures and lower strain rates enhance the dynamic recrystallization (DRX) process with remarkable effectiveness. The main precipitates are proved as the AlN phases and the (Cr,Fe) _23 C _6 carbides during hot deformation. With an increase in the deformation temperature, the size of (Cr,Fe) _23 C _6 and AlN gradually increases, and volume fraction gradually decreases. When the strain rate decreases, the average size and volume fraction of (Cr,Fe) _23 C _6 and AlN gradually increase. At the lower temperatures, the occurrence of dynamic recrystallization (DRX) is strongly influenced by (Cr,Fe) _23 C _6 formed on the grain boundaries, mainly because it causes a pinning effect, which hinders the movement of dislocations and delays the occurrence of the DRX. |
| first_indexed | 2024-03-12T15:38:04Z |
| format | Article |
| id | doaj.art-37c873b04b0d485199bdf9b7f431ba79 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:38:04Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-37c873b04b0d485199bdf9b7f431ba792023-08-09T16:07:33ZengIOP PublishingMaterials Research Express2053-15912020-01-017303651310.1088/2053-1591/ab7d0dMicrostructural evolution and precipitation behavior of the 0.1C-18Cr-1Al-1Si ferritic heat-resistant stainless steel during hot deformationYingbo Zhang0https://orcid.org/0000-0002-9223-3404Dening Zou1Tongyu Wei2Jiao Li3Libo Tong4Wei Zhang5School of Metallurgy and Engineering, Xi’an University of Architecture and Technology , Xi’an 710055, People’s Republic of China; Shaanxi Special Equipment Inspection and Testing Institute, Xi’an 710048, People’s Republic of ChinaSchool of Metallurgy and Engineering, Xi’an University of Architecture and Technology , Xi’an 710055, People’s Republic of ChinaSchool of Metallurgy and Engineering, Xi’an University of Architecture and Technology , Xi’an 710055, People’s Republic of ChinaSchool of Metallurgy and Engineering, Xi’an University of Architecture and Technology , Xi’an 710055, People’s Republic of ChinaSchool of Metallurgy and Engineering, Xi’an University of Architecture and Technology , Xi’an 710055, People’s Republic of ChinaTechnology Center, Taiyuan Iron and Steel (Group) Co. Ltd, Taiyuan 030003, People’s Republic of ChinaThe 0.1C-18Cr-1Al-1Si ferritic heat-resistant stainless steel has attracted considerable attention to high-temperature applications due to its favorable combination of creep and oxidation resistance. In this paper, the microstructural evolution and precipitation behavior of the 0.1C-18Cr-1Al-1Si ferritic heat-resistant stainless steel is studied from the compression deformation data in the temperature range of 850 °C–1050 °C and the strain rate range of 0.01–1 s ^−1 . Experimental results demonstrate that higher temperatures and lower strain rates enhance the dynamic recrystallization (DRX) process with remarkable effectiveness. The main precipitates are proved as the AlN phases and the (Cr,Fe) _23 C _6 carbides during hot deformation. With an increase in the deformation temperature, the size of (Cr,Fe) _23 C _6 and AlN gradually increases, and volume fraction gradually decreases. When the strain rate decreases, the average size and volume fraction of (Cr,Fe) _23 C _6 and AlN gradually increase. At the lower temperatures, the occurrence of dynamic recrystallization (DRX) is strongly influenced by (Cr,Fe) _23 C _6 formed on the grain boundaries, mainly because it causes a pinning effect, which hinders the movement of dislocations and delays the occurrence of the DRX.https://doi.org/10.1088/2053-1591/ab7d0dferritic heat-resistant stainless steelmicrostructral evolutionprecipitation behaviordynamic recrystallizationhot deformation |
| spellingShingle | Yingbo Zhang Dening Zou Tongyu Wei Jiao Li Libo Tong Wei Zhang Microstructural evolution and precipitation behavior of the 0.1C-18Cr-1Al-1Si ferritic heat-resistant stainless steel during hot deformation Materials Research Express ferritic heat-resistant stainless steel microstructral evolution precipitation behavior dynamic recrystallization hot deformation |
| title | Microstructural evolution and precipitation behavior of the 0.1C-18Cr-1Al-1Si ferritic heat-resistant stainless steel during hot deformation |
| title_full | Microstructural evolution and precipitation behavior of the 0.1C-18Cr-1Al-1Si ferritic heat-resistant stainless steel during hot deformation |
| title_fullStr | Microstructural evolution and precipitation behavior of the 0.1C-18Cr-1Al-1Si ferritic heat-resistant stainless steel during hot deformation |
| title_full_unstemmed | Microstructural evolution and precipitation behavior of the 0.1C-18Cr-1Al-1Si ferritic heat-resistant stainless steel during hot deformation |
| title_short | Microstructural evolution and precipitation behavior of the 0.1C-18Cr-1Al-1Si ferritic heat-resistant stainless steel during hot deformation |
| title_sort | microstructural evolution and precipitation behavior of the 0 1c 18cr 1al 1si ferritic heat resistant stainless steel during hot deformation |
| topic | ferritic heat-resistant stainless steel microstructral evolution precipitation behavior dynamic recrystallization hot deformation |
| url | https://doi.org/10.1088/2053-1591/ab7d0d |
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