The effect of various Co contents on the microstructure and properties of Ti(C,N)-TiB-Co cermets prepared in situ via reactive hot pressing
Ti(C,N)-TiB 2 -Co cermets were in situ synthesized, via reactive hot pressing from the Co-Ti-C-BN system, with a Co content ranging from 6 to 22 wt%. The microstructure, relative density, hardness, and fracture toughness of the sintered compacts was investigated by light microscopy, scanning electro...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2020-05-01
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| Series: | Advances in Mechanical Engineering |
| Online Access: | https://doi.org/10.1177/1687814020925716 |
| _version_ | 1818420003801661440 |
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| author | Xianrui Zhao Ze Yu Dunwen Zuo Qintao Li Mengxian Zhang Hongjun Wang Qiangyong Zhang Zhengyu Zhu Yong Chen Feng Xu |
| author_facet | Xianrui Zhao Ze Yu Dunwen Zuo Qintao Li Mengxian Zhang Hongjun Wang Qiangyong Zhang Zhengyu Zhu Yong Chen Feng Xu |
| author_sort | Xianrui Zhao |
| collection | DOAJ |
| description | Ti(C,N)-TiB 2 -Co cermets were in situ synthesized, via reactive hot pressing from the Co-Ti-C-BN system, with a Co content ranging from 6 to 22 wt%. The microstructure, relative density, hardness, and fracture toughness of the sintered compacts was investigated by light microscopy, scanning electron microscopy, ceramic densitometry, and Vickers hardness test. The investigations indicate that during hot pressing (compacting pressure = 30 MPa), when the Co content is 14–22 wt%, the metal binder is extruded. Co and Ti are included in the extrudate, breaking the original ratio and deteriorating the properties of the sintered products. As the Co content increases from 6 wt% to 12 wt%, the porosity increases, and the relative density increases from 97.2% to 99.5%. The fracture toughness increases from 6.1 to 6.8 MPa m 1/2 . The Vickers hardness first increases from 1897 HV 10 to the maximum 1960 HV 10 and then decreases slightly to 1945 HV 10 . |
| first_indexed | 2024-12-14T12:47:34Z |
| format | Article |
| id | doaj.art-61e41fe00d8e4611b580d9acf3e83da3 |
| institution | Directory Open Access Journal |
| issn | 1687-8140 |
| language | English |
| last_indexed | 2024-12-14T12:47:34Z |
| publishDate | 2020-05-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Advances in Mechanical Engineering |
| spelling | doaj.art-61e41fe00d8e4611b580d9acf3e83da32022-12-21T23:00:45ZengSAGE PublishingAdvances in Mechanical Engineering1687-81402020-05-011210.1177/1687814020925716The effect of various Co contents on the microstructure and properties of Ti(C,N)-TiB-Co cermets prepared in situ via reactive hot pressingXianrui ZhaoZe YuDunwen ZuoQintao LiMengxian ZhangHongjun WangQiangyong ZhangZhengyu ZhuYong ChenFeng XuTi(C,N)-TiB 2 -Co cermets were in situ synthesized, via reactive hot pressing from the Co-Ti-C-BN system, with a Co content ranging from 6 to 22 wt%. The microstructure, relative density, hardness, and fracture toughness of the sintered compacts was investigated by light microscopy, scanning electron microscopy, ceramic densitometry, and Vickers hardness test. The investigations indicate that during hot pressing (compacting pressure = 30 MPa), when the Co content is 14–22 wt%, the metal binder is extruded. Co and Ti are included in the extrudate, breaking the original ratio and deteriorating the properties of the sintered products. As the Co content increases from 6 wt% to 12 wt%, the porosity increases, and the relative density increases from 97.2% to 99.5%. The fracture toughness increases from 6.1 to 6.8 MPa m 1/2 . The Vickers hardness first increases from 1897 HV 10 to the maximum 1960 HV 10 and then decreases slightly to 1945 HV 10 .https://doi.org/10.1177/1687814020925716 |
| spellingShingle | Xianrui Zhao Ze Yu Dunwen Zuo Qintao Li Mengxian Zhang Hongjun Wang Qiangyong Zhang Zhengyu Zhu Yong Chen Feng Xu The effect of various Co contents on the microstructure and properties of Ti(C,N)-TiB-Co cermets prepared in situ via reactive hot pressing Advances in Mechanical Engineering |
| title | The effect of various Co contents on the microstructure and properties of Ti(C,N)-TiB-Co cermets prepared in situ via reactive hot pressing |
| title_full | The effect of various Co contents on the microstructure and properties of Ti(C,N)-TiB-Co cermets prepared in situ via reactive hot pressing |
| title_fullStr | The effect of various Co contents on the microstructure and properties of Ti(C,N)-TiB-Co cermets prepared in situ via reactive hot pressing |
| title_full_unstemmed | The effect of various Co contents on the microstructure and properties of Ti(C,N)-TiB-Co cermets prepared in situ via reactive hot pressing |
| title_short | The effect of various Co contents on the microstructure and properties of Ti(C,N)-TiB-Co cermets prepared in situ via reactive hot pressing |
| title_sort | effect of various co contents on the microstructure and properties of ti c n tib co cermets prepared in situ via reactive hot pressing |
| url | https://doi.org/10.1177/1687814020925716 |
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