Mo2C interface layer: effect on the interface strength and cutting performance of diamond/Fe-Ni-WC composites
The weak interfacial strength between Fe-based matrix and diamonds causes diamond particles to fall off prematurely, significantly affecting the cutting efficiency of diamond composites. This work aimed to optimize the interfacial microstructure and mechanical properties of the diamond/Fe-Ni-WC comp...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-07-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423013467 |
| _version_ | 1797745190938607616 |
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| author | Xinyue Mao Qingnan Meng Mu Yuan Sifan Wang Shiyin Huang Baochang Liu |
| author_facet | Xinyue Mao Qingnan Meng Mu Yuan Sifan Wang Shiyin Huang Baochang Liu |
| author_sort | Xinyue Mao |
| collection | DOAJ |
| description | The weak interfacial strength between Fe-based matrix and diamonds causes diamond particles to fall off prematurely, significantly affecting the cutting efficiency of diamond composites. This work aimed to optimize the interfacial microstructure and mechanical properties of the diamond/Fe-Ni-WC composites by coating a Mo2C layer on the diamond particles. The Mo2C-coated diamonds were prepared via the molten salt method. Diamond/Fe-Ni-WC composites were sintered by the hot-pressing process under a vacuum. The bending strength of composites with Mo2C-coated diamonds was improved from 804 to 996 MPa with the increased coating time. The energy dispersive spectroscopy scanning indicated that the Mo2C coating layer changed the interfacial composition between the matrix and the diamonds from Fe–C alloy to Mo2C, improving the interface strength. Moreover, the diamond protrusion heights of composites were raised by adding a Mo2C interface, resulting in an improvement in the cutting efficiency of impregnated diamond tools. |
| first_indexed | 2024-03-12T15:20:46Z |
| format | Article |
| id | doaj.art-5ecb50fe5f15453b9c8cbe841b931be1 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-12T15:20:46Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-5ecb50fe5f15453b9c8cbe841b931be12023-08-11T05:33:33ZengElsevierJournal of Materials Research and Technology2238-78542023-07-012520292039Mo2C interface layer: effect on the interface strength and cutting performance of diamond/Fe-Ni-WC compositesXinyue Mao0Qingnan Meng1Mu Yuan2Sifan Wang3Shiyin Huang4Baochang Liu5Key Lab of Ministry of Natural Resources for Drilling and Exploitation Technology in Complex Conditions, College of Construction Engineering, Jilin University, Changchun, 130026, ChinaKey Lab of Ministry of Natural Resources for Drilling and Exploitation Technology in Complex Conditions, College of Construction Engineering, Jilin University, Changchun, 130026, China; State Key Laboratory of Superhard Materials, Jilin University, Changchun, 130026, China; Corresponding author. Key Lab of Ministry of Natural Resources for Drilling and Exploitation Technology in Complex Conditions, College of Construction Engineering, Jilin University, Changchun, 130026, China.Key Lab of Ministry of Natural Resources for Drilling and Exploitation Technology in Complex Conditions, College of Construction Engineering, Jilin University, Changchun, 130026, ChinaKey Lab of Ministry of Natural Resources for Drilling and Exploitation Technology in Complex Conditions, College of Construction Engineering, Jilin University, Changchun, 130026, ChinaKey Lab of Ministry of Natural Resources for Drilling and Exploitation Technology in Complex Conditions, College of Construction Engineering, Jilin University, Changchun, 130026, ChinaKey Lab of Ministry of Natural Resources for Drilling and Exploitation Technology in Complex Conditions, College of Construction Engineering, Jilin University, Changchun, 130026, China; State Key Laboratory of Superhard Materials, Jilin University, Changchun, 130026, ChinaThe weak interfacial strength between Fe-based matrix and diamonds causes diamond particles to fall off prematurely, significantly affecting the cutting efficiency of diamond composites. This work aimed to optimize the interfacial microstructure and mechanical properties of the diamond/Fe-Ni-WC composites by coating a Mo2C layer on the diamond particles. The Mo2C-coated diamonds were prepared via the molten salt method. Diamond/Fe-Ni-WC composites were sintered by the hot-pressing process under a vacuum. The bending strength of composites with Mo2C-coated diamonds was improved from 804 to 996 MPa with the increased coating time. The energy dispersive spectroscopy scanning indicated that the Mo2C coating layer changed the interfacial composition between the matrix and the diamonds from Fe–C alloy to Mo2C, improving the interface strength. Moreover, the diamond protrusion heights of composites were raised by adding a Mo2C interface, resulting in an improvement in the cutting efficiency of impregnated diamond tools.http://www.sciencedirect.com/science/article/pii/S2238785423013467Mo2C coatingDiamond/Fe-Ni-WC compositeInterface modificationHot-pressing |
| spellingShingle | Xinyue Mao Qingnan Meng Mu Yuan Sifan Wang Shiyin Huang Baochang Liu Mo2C interface layer: effect on the interface strength and cutting performance of diamond/Fe-Ni-WC composites Journal of Materials Research and Technology Mo2C coating Diamond/Fe-Ni-WC composite Interface modification Hot-pressing |
| title | Mo2C interface layer: effect on the interface strength and cutting performance of diamond/Fe-Ni-WC composites |
| title_full | Mo2C interface layer: effect on the interface strength and cutting performance of diamond/Fe-Ni-WC composites |
| title_fullStr | Mo2C interface layer: effect on the interface strength and cutting performance of diamond/Fe-Ni-WC composites |
| title_full_unstemmed | Mo2C interface layer: effect on the interface strength and cutting performance of diamond/Fe-Ni-WC composites |
| title_short | Mo2C interface layer: effect on the interface strength and cutting performance of diamond/Fe-Ni-WC composites |
| title_sort | mo2c interface layer effect on the interface strength and cutting performance of diamond fe ni wc composites |
| topic | Mo2C coating Diamond/Fe-Ni-WC composite Interface modification Hot-pressing |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423013467 |
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