Effect of the combined addition of TaC and NbC on the dispersity of cubic phase in ultra-fine WC–10Co–0.5Cr cemented carbides
TaC and NbC have different effects on the dispersity of precipitated cubic phase, which acts as an important role in regulating the mechanical properties of ultra-fine cemented carbides. In this work, the influence of the combined addition of TaC and NbC on the microstructure evolution and mechanica...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2020-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/abbd5d |
| _version_ | 1827869314808545280 |
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| author | Na Li Weibin Zhang Peng Zhou Jian Lv Yong Du |
| author_facet | Na Li Weibin Zhang Peng Zhou Jian Lv Yong Du |
| author_sort | Na Li |
| collection | DOAJ |
| description | TaC and NbC have different effects on the dispersity of precipitated cubic phase, which acts as an important role in regulating the mechanical properties of ultra-fine cemented carbides. In this work, the influence of the combined addition of TaC and NbC on the microstructure evolution and mechanical properties in ultra-fine WC–10Co–0.5Cr cemented carbides was systematically investigated through the thermodynamic calculations and experiments. With the guide of thermodynamic calculations, the ultra-fine WC–10Co–0.5Cr cemented carbides with the combined addition of TaC and NbC were prepared. By replacing TaC with NbC, the dispersity of cubic carbides can be improved significantly from large-size honeycombed to small-size isolated cubic particles, which is explained by thermodynamic calculations. The brittle cubic phase results in the degradation of crack propagation resistance, and thus deteriorates the mechanical properties. Therefore, both the hardness and fracture toughness increase with the improvement of dispersity of cubic phase in cemented carbides. |
| first_indexed | 2024-03-12T15:43:55Z |
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| id | doaj.art-3b047b461b1540d38a46529c792ad3a2 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:43:55Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
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| spelling | doaj.art-3b047b461b1540d38a46529c792ad3a22023-08-09T15:50:51ZengIOP PublishingMaterials Research Express2053-15912020-01-0171010650510.1088/2053-1591/abbd5dEffect of the combined addition of TaC and NbC on the dispersity of cubic phase in ultra-fine WC–10Co–0.5Cr cemented carbidesNa Li0Weibin Zhang1https://orcid.org/0000-0001-6584-5053Peng Zhou2Jian Lv3Yong Du4Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University , Jinan 250061, People’s Republic of ChinaKey Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University , Jinan 250061, People’s Republic of ChinaHunan Provincial Key Defense Laboratory of High Temperature Wear-Resisting Materials and Preparation Technology, Hunan University of Science and Technology , Xiangtan, Hunan, 411201, People’s Republic of ChinaFaculty of Materials Metallurgy and Chemistry, JiangXi University of Science and Technology , Ganzhou, Jiangxi 341000, People’s Republic of ChinaState Key Laboratory of Powder Metallurgy, Central South University , Changsha, Hunan 410083, People’s Republic of ChinaTaC and NbC have different effects on the dispersity of precipitated cubic phase, which acts as an important role in regulating the mechanical properties of ultra-fine cemented carbides. In this work, the influence of the combined addition of TaC and NbC on the microstructure evolution and mechanical properties in ultra-fine WC–10Co–0.5Cr cemented carbides was systematically investigated through the thermodynamic calculations and experiments. With the guide of thermodynamic calculations, the ultra-fine WC–10Co–0.5Cr cemented carbides with the combined addition of TaC and NbC were prepared. By replacing TaC with NbC, the dispersity of cubic carbides can be improved significantly from large-size honeycombed to small-size isolated cubic particles, which is explained by thermodynamic calculations. The brittle cubic phase results in the degradation of crack propagation resistance, and thus deteriorates the mechanical properties. Therefore, both the hardness and fracture toughness increase with the improvement of dispersity of cubic phase in cemented carbides.https://doi.org/10.1088/2053-1591/abbd5dcemented carbidesgrain growth inhibitorthermodynamicsmicrostructuremechanical properties |
| spellingShingle | Na Li Weibin Zhang Peng Zhou Jian Lv Yong Du Effect of the combined addition of TaC and NbC on the dispersity of cubic phase in ultra-fine WC–10Co–0.5Cr cemented carbides Materials Research Express cemented carbides grain growth inhibitor thermodynamics microstructure mechanical properties |
| title | Effect of the combined addition of TaC and NbC on the dispersity of cubic phase in ultra-fine WC–10Co–0.5Cr cemented carbides |
| title_full | Effect of the combined addition of TaC and NbC on the dispersity of cubic phase in ultra-fine WC–10Co–0.5Cr cemented carbides |
| title_fullStr | Effect of the combined addition of TaC and NbC on the dispersity of cubic phase in ultra-fine WC–10Co–0.5Cr cemented carbides |
| title_full_unstemmed | Effect of the combined addition of TaC and NbC on the dispersity of cubic phase in ultra-fine WC–10Co–0.5Cr cemented carbides |
| title_short | Effect of the combined addition of TaC and NbC on the dispersity of cubic phase in ultra-fine WC–10Co–0.5Cr cemented carbides |
| title_sort | effect of the combined addition of tac and nbc on the dispersity of cubic phase in ultra fine wc 10co 0 5cr cemented carbides |
| topic | cemented carbides grain growth inhibitor thermodynamics microstructure mechanical properties |
| url | https://doi.org/10.1088/2053-1591/abbd5d |
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