Cracking and segregation in high-alloy steel 0.4C1.5Mn2Cr0.35Mo1.5Ni produced by thick continuous casting
Based on our innovative application of using thick continuous casting slab 0.4C1.5Mn2Cr0.35Mo1.5Ni (high alloy) for the production of high-quality mould steel, the present study investigated the high cracking susceptibility of high-alloy steel and segregation in continuous casting slab. The thermal...
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| Format: | Article |
| Language: | English |
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Elsevier
2019-03-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844018388066 |
| _version_ | 1819229367863083008 |
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| author | Rensheng Chu Zhanjun Li Yong Fan Jingang Liu Changwen Ma Xinhua Wang |
| author_facet | Rensheng Chu Zhanjun Li Yong Fan Jingang Liu Changwen Ma Xinhua Wang |
| author_sort | Rensheng Chu |
| collection | DOAJ |
| description | Based on our innovative application of using thick continuous casting slab 0.4C1.5Mn2Cr0.35Mo1.5Ni (high alloy) for the production of high-quality mould steel, the present study investigated the high cracking susceptibility of high-alloy steel and segregation in continuous casting slab. The thermal expansion and the continuous cooling transformation (CCT) curve measurement, together with a high temperature in situ observation, confirmed the martensite phase transition happening at approximately 583 K that would result in an increase in the hardenability and cracking susceptibility. The cracking susceptibility zone was determined by high-temperature mechanical properties measurement. The high-alloy mould steel has no II brittle zone, and III brittle zone is 973–1148 K. As a conclusion, the straightening temperature should be above 1148 K to avoid the cracking during the continuous casting. Moreover, the elemental segregation of carbon, sulfur, chromium, and molybdenum along the cracking was examined by electron probe microanalysis (EPMA) quantitative analysis that might be another reason for the steel crack formation. It shows that Martensite phase transition happened at approximately 583 K that would result in an increase in the hardenability and cracking susceptibility. |
| first_indexed | 2024-12-23T11:12:03Z |
| format | Article |
| id | doaj.art-4c47446e2de04933bb42b2db91ceaf76 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-12-23T11:12:03Z |
| publishDate | 2019-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-4c47446e2de04933bb42b2db91ceaf762022-12-21T17:49:19ZengElsevierHeliyon2405-84402019-03-0153e01329Cracking and segregation in high-alloy steel 0.4C1.5Mn2Cr0.35Mo1.5Ni produced by thick continuous castingRensheng Chu0Zhanjun Li1Yong Fan2Jingang Liu3Changwen Ma4Xinhua Wang5Shougang Research Institute of Technology, Beijing, 100043, China; Department of Materials Engineering, KU Leuven, Kasteelpark Arenberg 44, B-3001, Heverlee, BelgiumShougang Research Institute of Technology, Beijing, 100043, ChinaDepartment of Materials Engineering, KU Leuven, Kasteelpark Arenberg 44, B-3001, Heverlee, Belgium; Institut für Eisen- und Stahltechnologie, TU Bergakademie Freiberg, 09599, Freiberg, Sachsen, Germany; Corresponding author.Shougang Research Institute of Technology, Beijing, 100043, ChinaShougang Research Institute of Technology, Beijing, 100043, ChinaShougang Research Institute of Technology, Beijing, 100043, ChinaBased on our innovative application of using thick continuous casting slab 0.4C1.5Mn2Cr0.35Mo1.5Ni (high alloy) for the production of high-quality mould steel, the present study investigated the high cracking susceptibility of high-alloy steel and segregation in continuous casting slab. The thermal expansion and the continuous cooling transformation (CCT) curve measurement, together with a high temperature in situ observation, confirmed the martensite phase transition happening at approximately 583 K that would result in an increase in the hardenability and cracking susceptibility. The cracking susceptibility zone was determined by high-temperature mechanical properties measurement. The high-alloy mould steel has no II brittle zone, and III brittle zone is 973–1148 K. As a conclusion, the straightening temperature should be above 1148 K to avoid the cracking during the continuous casting. Moreover, the elemental segregation of carbon, sulfur, chromium, and molybdenum along the cracking was examined by electron probe microanalysis (EPMA) quantitative analysis that might be another reason for the steel crack formation. It shows that Martensite phase transition happened at approximately 583 K that would result in an increase in the hardenability and cracking susceptibility.http://www.sciencedirect.com/science/article/pii/S2405844018388066Metallurgical engineering |
| spellingShingle | Rensheng Chu Zhanjun Li Yong Fan Jingang Liu Changwen Ma Xinhua Wang Cracking and segregation in high-alloy steel 0.4C1.5Mn2Cr0.35Mo1.5Ni produced by thick continuous casting Heliyon Metallurgical engineering |
| title | Cracking and segregation in high-alloy steel 0.4C1.5Mn2Cr0.35Mo1.5Ni produced by thick continuous casting |
| title_full | Cracking and segregation in high-alloy steel 0.4C1.5Mn2Cr0.35Mo1.5Ni produced by thick continuous casting |
| title_fullStr | Cracking and segregation in high-alloy steel 0.4C1.5Mn2Cr0.35Mo1.5Ni produced by thick continuous casting |
| title_full_unstemmed | Cracking and segregation in high-alloy steel 0.4C1.5Mn2Cr0.35Mo1.5Ni produced by thick continuous casting |
| title_short | Cracking and segregation in high-alloy steel 0.4C1.5Mn2Cr0.35Mo1.5Ni produced by thick continuous casting |
| title_sort | cracking and segregation in high alloy steel 0 4c1 5mn2cr0 35mo1 5ni produced by thick continuous casting |
| topic | Metallurgical engineering |
| url | http://www.sciencedirect.com/science/article/pii/S2405844018388066 |
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