Refinement of primary carbides and improvement of wear resistance of hypereutectic high chromium cast iron after modification
The effect of the modification treatment on the refinement of primary carbides and wear resistance of 35% Cr-4.0% C hypereutectic high chromium cast iron (HHCCI) was investigated using the first-principles calculations, XRD, SEM, TEM, hardness tests, and wear tests. The addition of N elements to HHC...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-05-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423008700 |
| _version_ | 1827920218667614208 |
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| author | Liqiang Gong Hanguang Fu Penghui Yang Xiaoliang Ji Wenhang Yin Jian Lin |
| author_facet | Liqiang Gong Hanguang Fu Penghui Yang Xiaoliang Ji Wenhang Yin Jian Lin |
| author_sort | Liqiang Gong |
| collection | DOAJ |
| description | The effect of the modification treatment on the refinement of primary carbides and wear resistance of 35% Cr-4.0% C hypereutectic high chromium cast iron (HHCCI) was investigated using the first-principles calculations, XRD, SEM, TEM, hardness tests, and wear tests. The addition of N elements to HHCCI refined the size of the M7C3 primary carbide from 13.25 ± 0.72 μm to 11.67 ± 0.33 μm under the effect of adsorption refinement. When the compound modification elements (N + Ti + V + RE-Mg) were added, the combination of adsorption refinement and heterogeneous nucleation refinement significantly reduced the carbide size to 5.35 ± 0.15 μm. The refinement of the M7C3 primary carbide can be attributed to two components: 1) the refinement of the heterogeneous nucleation of TiC and VC. 2) the combination of N, Ti, and V with the M7C3 preferred growth surface (0001) resulting in the refinement by adsorption and reduce the size of the primary carbide. The hypereutectic high chromium cast iron after the compound modification exhibited excellent wear resistance. Under dry sliding wear condition, Compared with the unmodified sample, the wear resistance increased by 75%. Under corrosive wear conditions, the wear resistance is increased by 98.1%. |
| first_indexed | 2024-03-13T04:09:29Z |
| format | Article |
| id | doaj.art-8f57ac89b3b845dc8ca6fc0251aa4731 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-13T04:09:29Z |
| publishDate | 2023-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-8f57ac89b3b845dc8ca6fc0251aa47312023-06-21T06:57:02ZengElsevierJournal of Materials Research and Technology2238-78542023-05-012457245742Refinement of primary carbides and improvement of wear resistance of hypereutectic high chromium cast iron after modificationLiqiang Gong0Hanguang Fu1Penghui Yang2Xiaoliang Ji3Wenhang Yin4Jian Lin5Key Laboratory of Advanced Functional Materials, Ministry of Education, Department of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, PR ChinaKey Laboratory of Advanced Functional Materials, Ministry of Education, Department of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, PR China; Corresponding author.School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, Gansu Province, PR ChinaKey Laboratory of Advanced Functional Materials, Ministry of Education, Department of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, PR ChinaGangnuo New Materials Co., Ltd., Handan 057650, Hebei Province, PR ChinaKey Laboratory of Advanced Functional Materials, Ministry of Education, Department of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, PR ChinaThe effect of the modification treatment on the refinement of primary carbides and wear resistance of 35% Cr-4.0% C hypereutectic high chromium cast iron (HHCCI) was investigated using the first-principles calculations, XRD, SEM, TEM, hardness tests, and wear tests. The addition of N elements to HHCCI refined the size of the M7C3 primary carbide from 13.25 ± 0.72 μm to 11.67 ± 0.33 μm under the effect of adsorption refinement. When the compound modification elements (N + Ti + V + RE-Mg) were added, the combination of adsorption refinement and heterogeneous nucleation refinement significantly reduced the carbide size to 5.35 ± 0.15 μm. The refinement of the M7C3 primary carbide can be attributed to two components: 1) the refinement of the heterogeneous nucleation of TiC and VC. 2) the combination of N, Ti, and V with the M7C3 preferred growth surface (0001) resulting in the refinement by adsorption and reduce the size of the primary carbide. The hypereutectic high chromium cast iron after the compound modification exhibited excellent wear resistance. Under dry sliding wear condition, Compared with the unmodified sample, the wear resistance increased by 75%. Under corrosive wear conditions, the wear resistance is increased by 98.1%.http://www.sciencedirect.com/science/article/pii/S2238785423008700Hypereutectic high chromium cast ironModificationPrimary carbideFirst principle calculationWear resistance |
| spellingShingle | Liqiang Gong Hanguang Fu Penghui Yang Xiaoliang Ji Wenhang Yin Jian Lin Refinement of primary carbides and improvement of wear resistance of hypereutectic high chromium cast iron after modification Journal of Materials Research and Technology Hypereutectic high chromium cast iron Modification Primary carbide First principle calculation Wear resistance |
| title | Refinement of primary carbides and improvement of wear resistance of hypereutectic high chromium cast iron after modification |
| title_full | Refinement of primary carbides and improvement of wear resistance of hypereutectic high chromium cast iron after modification |
| title_fullStr | Refinement of primary carbides and improvement of wear resistance of hypereutectic high chromium cast iron after modification |
| title_full_unstemmed | Refinement of primary carbides and improvement of wear resistance of hypereutectic high chromium cast iron after modification |
| title_short | Refinement of primary carbides and improvement of wear resistance of hypereutectic high chromium cast iron after modification |
| title_sort | refinement of primary carbides and improvement of wear resistance of hypereutectic high chromium cast iron after modification |
| topic | Hypereutectic high chromium cast iron Modification Primary carbide First principle calculation Wear resistance |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423008700 |
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