Effect of austenitizing temperature and cooling rate on Ms temperature of Fe–Ni–Cr cast iron
The effect of Ms temperature variation in Fe–Ni–Cr cast iron has been investigated in this paper. The heating and cooling processes were carefully compared and analysed through in-situ observation. The results showed that the size of austenite grains remained relatively constant throughout the auste...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-09-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423017362 |
| _version_ | 1797646708977434624 |
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| author | Kuo Cao Zhigang Wang Pengfei Liu Aimin Zhao |
| author_facet | Kuo Cao Zhigang Wang Pengfei Liu Aimin Zhao |
| author_sort | Kuo Cao |
| collection | DOAJ |
| description | The effect of Ms temperature variation in Fe–Ni–Cr cast iron has been investigated in this paper. The heating and cooling processes were carefully compared and analysed through in-situ observation. The results showed that the size of austenite grains remained relatively constant throughout the austenitizing process. Moreover, higher austenitizing temperatures were found to facilitate the transfer of carbon from graphite to austenite, which hindered the martensite transformation. The M3C and M23C6 carbide generated during heating and cooling diminished the concentration of carbon and alloying elements in the austenite and enhanced the Ms temperature. The acceleration of cooling rate could impede the precipitation of carbide and result in more significant lattice distortion of austenite, leading to a notable reduction in Ms temperature and an increment in residual austenite content. The augmentation in austenitizing temperature and cooling rate amplified the non-chemical driving force, culminating in a more arduous martensitic transformation. |
| first_indexed | 2024-03-11T15:06:38Z |
| format | Article |
| id | doaj.art-3333e784e10d40b6b2f60c544036c02a |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-11T15:06:38Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-3333e784e10d40b6b2f60c544036c02a2023-10-30T06:02:46ZengElsevierJournal of Materials Research and Technology2238-78542023-09-0126796806Effect of austenitizing temperature and cooling rate on Ms temperature of Fe–Ni–Cr cast ironKuo Cao0Zhigang Wang1Pengfei Liu2Aimin Zhao3Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, ChinaFaculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, ChinaCollaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, ChinaCollaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, China; Corresponding author.The effect of Ms temperature variation in Fe–Ni–Cr cast iron has been investigated in this paper. The heating and cooling processes were carefully compared and analysed through in-situ observation. The results showed that the size of austenite grains remained relatively constant throughout the austenitizing process. Moreover, higher austenitizing temperatures were found to facilitate the transfer of carbon from graphite to austenite, which hindered the martensite transformation. The M3C and M23C6 carbide generated during heating and cooling diminished the concentration of carbon and alloying elements in the austenite and enhanced the Ms temperature. The acceleration of cooling rate could impede the precipitation of carbide and result in more significant lattice distortion of austenite, leading to a notable reduction in Ms temperature and an increment in residual austenite content. The augmentation in austenitizing temperature and cooling rate amplified the non-chemical driving force, culminating in a more arduous martensitic transformation.http://www.sciencedirect.com/science/article/pii/S2238785423017362Ms temperatureIn-situ observationAustenitizing temperatureThermal dilatation |
| spellingShingle | Kuo Cao Zhigang Wang Pengfei Liu Aimin Zhao Effect of austenitizing temperature and cooling rate on Ms temperature of Fe–Ni–Cr cast iron Journal of Materials Research and Technology Ms temperature In-situ observation Austenitizing temperature Thermal dilatation |
| title | Effect of austenitizing temperature and cooling rate on Ms temperature of Fe–Ni–Cr cast iron |
| title_full | Effect of austenitizing temperature and cooling rate on Ms temperature of Fe–Ni–Cr cast iron |
| title_fullStr | Effect of austenitizing temperature and cooling rate on Ms temperature of Fe–Ni–Cr cast iron |
| title_full_unstemmed | Effect of austenitizing temperature and cooling rate on Ms temperature of Fe–Ni–Cr cast iron |
| title_short | Effect of austenitizing temperature and cooling rate on Ms temperature of Fe–Ni–Cr cast iron |
| title_sort | effect of austenitizing temperature and cooling rate on ms temperature of fe ni cr cast iron |
| topic | Ms temperature In-situ observation Austenitizing temperature Thermal dilatation |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423017362 |
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