Microstructure and mechanical properties of NbC–Ni cermets prepared by microwave sintering
This study shows the application of microwave sintering (MS) on preparing NbC–10Ni and NbC–12Ni cermets, as well as the effect of its microstructure, phase formation, and mechanical properties. Results indicated that NbC–Ni cermets with a fine and uniform structure can be obtained by MS in a relativ...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2022-08-01
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| Series: | High Temperature Materials and Processes |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/htmp-2022-0049 |
| _version_ | 1828108534151118848 |
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| author | Tang Siwen Zhang Hao Yang Zhifu Liu Qian Lv Zheng Ouyang Cong Qiu Xinyi |
| author_facet | Tang Siwen Zhang Hao Yang Zhifu Liu Qian Lv Zheng Ouyang Cong Qiu Xinyi |
| author_sort | Tang Siwen |
| collection | DOAJ |
| description | This study shows the application of microwave sintering (MS) on preparing NbC–10Ni and NbC–12Ni cermets, as well as the effect of its microstructure, phase formation, and mechanical properties. Results indicated that NbC–Ni cermets with a fine and uniform structure can be obtained by MS in a relatively short time. And the sintering temperature greatly influenced the microstructure and mechanical properties of NbC–Ni cermets, whereas the effect of dwell time is relatively small. With the increase of the sintering temperature, the microstructure of NbC–Ni cermets experienced sintering densification and grain growth. The strength and toughness increased first and then decreased, and the hardness increased with the increase of sintering temperature. According to the comprehensive mechanical properties, the optimized sintering process is 1,390°C and the dwell time is 15 min. At this time, no new phase formed, but the diffraction peak of the Ni phase shifted. Through analysis, it is found that the improvement mechanisms for comprehensive mechanical properties of NbC–Ni cermets mainly include grain refinement, crack deflection and bridging, and energy absorption of the ductile phase of Ni. |
| first_indexed | 2024-04-11T10:47:11Z |
| format | Article |
| id | doaj.art-f6d6bb9c715e4f2fbfdfe8abee3a9a5d |
| institution | Directory Open Access Journal |
| issn | 2191-0324 |
| language | English |
| last_indexed | 2024-04-11T10:47:11Z |
| publishDate | 2022-08-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | High Temperature Materials and Processes |
| spelling | doaj.art-f6d6bb9c715e4f2fbfdfe8abee3a9a5d2022-12-22T04:29:00ZengDe GruyterHigh Temperature Materials and Processes2191-03242022-08-0141148249210.1515/htmp-2022-0049Microstructure and mechanical properties of NbC–Ni cermets prepared by microwave sinteringTang Siwen0Zhang Hao1Yang Zhifu2Liu Qian3Lv Zheng4Ouyang Cong5Qiu Xinyi6Hunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment, Hunan University of Science and Technology, Xiangtan 411201, ChinaHunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment, Hunan University of Science and Technology, Xiangtan 411201, ChinaHunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment, Hunan University of Science and Technology, Xiangtan 411201, ChinaEngineering Research Center of Mineral Resources Development Technology and Equipment for Deep Sea and Deep Earth, Ministry of Education, Hunan University of Science and Technology, Xiangtan 411201, ChinaEngineering Research Center of Mineral Resources Development Technology and Equipment for Deep Sea and Deep Earth, Ministry of Education, Hunan University of Science and Technology, Xiangtan 411201, ChinaEngineering Research Center of Mineral Resources Development Technology and Equipment for Deep Sea and Deep Earth, Ministry of Education, Hunan University of Science and Technology, Xiangtan 411201, ChinaHunan Provincial Key Laboratory of High Efficiency and Precision Machining of Difficult-to-Cut Material, Hunan University of Science and Technology, Xiangtan 411201, ChinaThis study shows the application of microwave sintering (MS) on preparing NbC–10Ni and NbC–12Ni cermets, as well as the effect of its microstructure, phase formation, and mechanical properties. Results indicated that NbC–Ni cermets with a fine and uniform structure can be obtained by MS in a relatively short time. And the sintering temperature greatly influenced the microstructure and mechanical properties of NbC–Ni cermets, whereas the effect of dwell time is relatively small. With the increase of the sintering temperature, the microstructure of NbC–Ni cermets experienced sintering densification and grain growth. The strength and toughness increased first and then decreased, and the hardness increased with the increase of sintering temperature. According to the comprehensive mechanical properties, the optimized sintering process is 1,390°C and the dwell time is 15 min. At this time, no new phase formed, but the diffraction peak of the Ni phase shifted. Through analysis, it is found that the improvement mechanisms for comprehensive mechanical properties of NbC–Ni cermets mainly include grain refinement, crack deflection and bridging, and energy absorption of the ductile phase of Ni.https://doi.org/10.1515/htmp-2022-0049nbc–ni cermetsmicrowave sinteringmicrostructuremechanical property |
| spellingShingle | Tang Siwen Zhang Hao Yang Zhifu Liu Qian Lv Zheng Ouyang Cong Qiu Xinyi Microstructure and mechanical properties of NbC–Ni cermets prepared by microwave sintering High Temperature Materials and Processes nbc–ni cermets microwave sintering microstructure mechanical property |
| title | Microstructure and mechanical properties of NbC–Ni cermets prepared by microwave sintering |
| title_full | Microstructure and mechanical properties of NbC–Ni cermets prepared by microwave sintering |
| title_fullStr | Microstructure and mechanical properties of NbC–Ni cermets prepared by microwave sintering |
| title_full_unstemmed | Microstructure and mechanical properties of NbC–Ni cermets prepared by microwave sintering |
| title_short | Microstructure and mechanical properties of NbC–Ni cermets prepared by microwave sintering |
| title_sort | microstructure and mechanical properties of nbc ni cermets prepared by microwave sintering |
| topic | nbc–ni cermets microwave sintering microstructure mechanical property |
| url | https://doi.org/10.1515/htmp-2022-0049 |
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