Microstructure of ultrafine graded cemented carbides with cubic rich surface
The microstructure and mechanical properties of the WC‒10TiC‒0.5VC‒0.5Cr2C3‒12Co and WC‒12Co cemented carbides in the functionally graded and uniform structure were systematically investigated by sintering in nitrogen-rich atmosphere. The scanning electron microscope (SEM), energy disperse spectrosc...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Powder Metallurgy Technology
2021-04-01
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| Series: | Fenmo yejin jishu |
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| Online Access: | https://pmt.ustb.edu.cn/article/doi/10.19591/j.cnki.cn11-1974/tf.2020010005 |
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| author | CHEN Jian HUANG Yi-ping ZHU Rui ZHOU Li DENG Xin WU Shang-hua LIU Bing-yao |
| author_facet | CHEN Jian HUANG Yi-ping ZHU Rui ZHOU Li DENG Xin WU Shang-hua LIU Bing-yao |
| author_sort | CHEN Jian |
| collection | DOAJ |
| description | The microstructure and mechanical properties of the WC‒10TiC‒0.5VC‒0.5Cr2C3‒12Co and WC‒12Co cemented carbides in the functionally graded and uniform structure were systematically investigated by sintering in nitrogen-rich atmosphere. The scanning electron microscope (SEM), energy disperse spectroscope (EDS), and X-ray diffractometer (XRD) were used for the microstructure observation and phase composition analysis, and the hardness and fracture toughness tests were made in both the surface and the center of the cemented carbides. The results show that, different from the WC‒12Co cemented carbides in uniform structure, the surface layer of the WC‒10TiC‒0.5VC‒0.5Cr2C3‒12Co cemented carbides in the gradient structure is rich in TiCN cubic phase, which is about 12 μm in thickness, and there is a cobalt-rich and coarse-grain intermediate layer below the surface layer of the WC‒10TiC‒0.5VC‒0.5Cr2C3‒12Co cemented carbides. Such gradient and ultrafine cemented carbides show the advantage as the high hardness in the surface layer, the high fracture toughness in the core, and the ultrafine and uniform WC grain. |
| format | Article |
| id | doaj-art-b3dcbfbbc95548f79b8a35a91263cce2 |
| institution | OA Journals |
| issn | 1001-3784 |
| language | zho |
| publishDate | 2021-04-01 |
| publisher | Editorial Office of Powder Metallurgy Technology |
| record_format | Article |
| series | Fenmo yejin jishu |
| spelling | doaj-art-b3dcbfbbc95548f79b8a35a91263cce22025-08-20T02:34:19ZzhoEditorial Office of Powder Metallurgy TechnologyFenmo yejin jishu1001-37842021-04-0139211712110.19591/j.cnki.cn11-1974/tf.2020010005Microstructure of ultrafine graded cemented carbides with cubic rich surfaceCHEN JianHUANG Yi-pingZHU RuiZHOU LiDENG XinWU Shang-huaLIU Bing-yaoThe microstructure and mechanical properties of the WC‒10TiC‒0.5VC‒0.5Cr2C3‒12Co and WC‒12Co cemented carbides in the functionally graded and uniform structure were systematically investigated by sintering in nitrogen-rich atmosphere. The scanning electron microscope (SEM), energy disperse spectroscope (EDS), and X-ray diffractometer (XRD) were used for the microstructure observation and phase composition analysis, and the hardness and fracture toughness tests were made in both the surface and the center of the cemented carbides. The results show that, different from the WC‒12Co cemented carbides in uniform structure, the surface layer of the WC‒10TiC‒0.5VC‒0.5Cr2C3‒12Co cemented carbides in the gradient structure is rich in TiCN cubic phase, which is about 12 μm in thickness, and there is a cobalt-rich and coarse-grain intermediate layer below the surface layer of the WC‒10TiC‒0.5VC‒0.5Cr2C3‒12Co cemented carbides. Such gradient and ultrafine cemented carbides show the advantage as the high hardness in the surface layer, the high fracture toughness in the core, and the ultrafine and uniform WC grain.https://pmt.ustb.edu.cn/article/doi/10.19591/j.cnki.cn11-1974/tf.2020010005cemented carbidesgradient structuremicrostructuregrain size |
| spellingShingle | CHEN Jian HUANG Yi-ping ZHU Rui ZHOU Li DENG Xin WU Shang-hua LIU Bing-yao Microstructure of ultrafine graded cemented carbides with cubic rich surface Fenmo yejin jishu cemented carbides gradient structure microstructure grain size |
| title | Microstructure of ultrafine graded cemented carbides with cubic rich surface |
| title_full | Microstructure of ultrafine graded cemented carbides with cubic rich surface |
| title_fullStr | Microstructure of ultrafine graded cemented carbides with cubic rich surface |
| title_full_unstemmed | Microstructure of ultrafine graded cemented carbides with cubic rich surface |
| title_short | Microstructure of ultrafine graded cemented carbides with cubic rich surface |
| title_sort | microstructure of ultrafine graded cemented carbides with cubic rich surface |
| topic | cemented carbides gradient structure microstructure grain size |
| url | https://pmt.ustb.edu.cn/article/doi/10.19591/j.cnki.cn11-1974/tf.2020010005 |
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