Microstructural evolution and mechanical properties of Cr–Ni–Mo–V steel with banded structure during tempering
Effects of tempering temperature on the microstructure evolution and mechanical properties of Cr–Ni–Mo–V steel with banded structure were investigated in this study. It is indicated that the tempering temperature has a significant influence on the morphology of the martensite lath in the banded stru...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-12-01
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| Series: | Journal of Alloys and Metallurgical Systems |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2949917824000804 |
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| author | Yunfei Du Zhengzhao Gu Yaqin Zhang Rui Bai |
| author_facet | Yunfei Du Zhengzhao Gu Yaqin Zhang Rui Bai |
| author_sort | Yunfei Du |
| collection | DOAJ |
| description | Effects of tempering temperature on the microstructure evolution and mechanical properties of Cr–Ni–Mo–V steel with banded structure were investigated in this study. It is indicated that the tempering temperature has a significant influence on the morphology of the martensite lath in the banded structure. Carbides M3C, M2C and M2C/M7C3 are identified at tempering temperature of 430 °C, 580 °C and 630 °C, respectively. The MC precipitate is a stable phase existing in a wide range of tempering temperature. As the tempering temperature increases, the tensile strength is gradually decreased, while the elongation and impact toughness are improved. The delaminated crack observed in the fracture surface is connected to the banded structure in Cr–Ni–Mo–V steel. It is suggested that the enhancement of ductility and toughness can be attributed to the transformation of the stress state and the blunting of the crack tip. The relationship between the microstructure and mechanical properties is explored, and a detailed insight into the precipitation processes of carbides at different tempering temperature are conducted. |
| format | Article |
| id | doaj-art-26ddd241da104bcfbbae19205d09dbca |
| institution | OA Journals |
| issn | 2949-9178 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Alloys and Metallurgical Systems |
| spelling | doaj-art-26ddd241da104bcfbbae19205d09dbca2025-08-20T02:38:05ZengElsevierJournal of Alloys and Metallurgical Systems2949-91782024-12-01810013110.1016/j.jalmes.2024.100131Microstructural evolution and mechanical properties of Cr–Ni–Mo–V steel with banded structure during temperingYunfei Du0Zhengzhao Gu1Yaqin Zhang2Rui Bai3Department of Mechanical Engineering, Taiyuan Institute of Technology, Taiyuan 030008, PR China; Shanxi Key Laboratory of Intelligent Equipment Technology in Harsh Environment, North University of China, Taiyuan 030051, PR China; Corresponding author at: Department of Mechanical Engineering, Taiyuan Institute of Technology, Taiyuan 030008, PR China.Department of Mechanical Engineering, Taiyuan Institute of Technology, Taiyuan 030008, PR ChinaDepartment of Mechanical Engineering, Taiyuan Institute of Technology, Taiyuan 030008, PR ChinaDepartment of Mechanical Engineering, Taiyuan Institute of Technology, Taiyuan 030008, PR ChinaEffects of tempering temperature on the microstructure evolution and mechanical properties of Cr–Ni–Mo–V steel with banded structure were investigated in this study. It is indicated that the tempering temperature has a significant influence on the morphology of the martensite lath in the banded structure. Carbides M3C, M2C and M2C/M7C3 are identified at tempering temperature of 430 °C, 580 °C and 630 °C, respectively. The MC precipitate is a stable phase existing in a wide range of tempering temperature. As the tempering temperature increases, the tensile strength is gradually decreased, while the elongation and impact toughness are improved. The delaminated crack observed in the fracture surface is connected to the banded structure in Cr–Ni–Mo–V steel. It is suggested that the enhancement of ductility and toughness can be attributed to the transformation of the stress state and the blunting of the crack tip. The relationship between the microstructure and mechanical properties is explored, and a detailed insight into the precipitation processes of carbides at different tempering temperature are conducted.http://www.sciencedirect.com/science/article/pii/S2949917824000804Cr–Ni–Mo–V steelBanded structureTemperingPrecipitationMechanical properties |
| spellingShingle | Yunfei Du Zhengzhao Gu Yaqin Zhang Rui Bai Microstructural evolution and mechanical properties of Cr–Ni–Mo–V steel with banded structure during tempering Journal of Alloys and Metallurgical Systems Cr–Ni–Mo–V steel Banded structure Tempering Precipitation Mechanical properties |
| title | Microstructural evolution and mechanical properties of Cr–Ni–Mo–V steel with banded structure during tempering |
| title_full | Microstructural evolution and mechanical properties of Cr–Ni–Mo–V steel with banded structure during tempering |
| title_fullStr | Microstructural evolution and mechanical properties of Cr–Ni–Mo–V steel with banded structure during tempering |
| title_full_unstemmed | Microstructural evolution and mechanical properties of Cr–Ni–Mo–V steel with banded structure during tempering |
| title_short | Microstructural evolution and mechanical properties of Cr–Ni–Mo–V steel with banded structure during tempering |
| title_sort | microstructural evolution and mechanical properties of cr ni mo v steel with banded structure during tempering |
| topic | Cr–Ni–Mo–V steel Banded structure Tempering Precipitation Mechanical properties |
| url | http://www.sciencedirect.com/science/article/pii/S2949917824000804 |
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