Effect of Boronizing on the Microstructure and Mechanical Properties of CoCrFeNiMn High-Entropy Alloy
The CoCrFeNiMn high-entropy alloys were treated by powder-pack boriding to improve their surface hardness and wear resistance. The variation of boriding layer thickness with time and temperature was studied. Then, the frequency factor D<sub>0</sub> and diffusion activation energy Q of el...
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MDPI AG
2023-05-01
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| Online Access: | https://www.mdpi.com/1996-1944/16/10/3754 |
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| author | Mingyu Hu Xuemei Ouyang Fucheng Yin Xu Zhao Zuchuan Zhang Xinming Wang |
| author_facet | Mingyu Hu Xuemei Ouyang Fucheng Yin Xu Zhao Zuchuan Zhang Xinming Wang |
| author_sort | Mingyu Hu |
| collection | DOAJ |
| description | The CoCrFeNiMn high-entropy alloys were treated by powder-pack boriding to improve their surface hardness and wear resistance. The variation of boriding layer thickness with time and temperature was studied. Then, the frequency factor D<sub>0</sub> and diffusion activation energy Q of element B in HEA are calculated to be 9.15 × 10<sup>−5</sup> m<sup>2</sup>/s and 206.93 kJ/mol, respectively. The diffusion behavior of elements in the boronizing process was investigated and shows that the boride layer forms with the metal atoms diffusing outward and the diffusion layer forms with the B atoms diffusing inward by the Pt-labeling method. In addition, the surface microhardness of CoCrFeNiMn HEA was significantly improved to 23.8 ± 1.4 Gpa, and the friction coefficient was reduced from 0.86 to 0.48~0.61. |
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| issn | 1996-1944 |
| language | English |
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| spelling | doaj.art-acffaef9ef224436ba7c5e96c39e218a2023-11-18T02:15:41ZengMDPI AGMaterials1996-19442023-05-011610375410.3390/ma16103754Effect of Boronizing on the Microstructure and Mechanical Properties of CoCrFeNiMn High-Entropy AlloyMingyu Hu0Xuemei Ouyang1Fucheng Yin2Xu Zhao3Zuchuan Zhang4Xinming Wang5School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, ChinaSchool of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, ChinaSchool of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, ChinaSchool of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, ChinaSchool of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, ChinaSchool of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, ChinaThe CoCrFeNiMn high-entropy alloys were treated by powder-pack boriding to improve their surface hardness and wear resistance. The variation of boriding layer thickness with time and temperature was studied. Then, the frequency factor D<sub>0</sub> and diffusion activation energy Q of element B in HEA are calculated to be 9.15 × 10<sup>−5</sup> m<sup>2</sup>/s and 206.93 kJ/mol, respectively. The diffusion behavior of elements in the boronizing process was investigated and shows that the boride layer forms with the metal atoms diffusing outward and the diffusion layer forms with the B atoms diffusing inward by the Pt-labeling method. In addition, the surface microhardness of CoCrFeNiMn HEA was significantly improved to 23.8 ± 1.4 Gpa, and the friction coefficient was reduced from 0.86 to 0.48~0.61.https://www.mdpi.com/1996-1944/16/10/3754high entropy alloyboronizinggrowth kineticsboronizing mechanismwear resistance |
| spellingShingle | Mingyu Hu Xuemei Ouyang Fucheng Yin Xu Zhao Zuchuan Zhang Xinming Wang Effect of Boronizing on the Microstructure and Mechanical Properties of CoCrFeNiMn High-Entropy Alloy Materials high entropy alloy boronizing growth kinetics boronizing mechanism wear resistance |
| title | Effect of Boronizing on the Microstructure and Mechanical Properties of CoCrFeNiMn High-Entropy Alloy |
| title_full | Effect of Boronizing on the Microstructure and Mechanical Properties of CoCrFeNiMn High-Entropy Alloy |
| title_fullStr | Effect of Boronizing on the Microstructure and Mechanical Properties of CoCrFeNiMn High-Entropy Alloy |
| title_full_unstemmed | Effect of Boronizing on the Microstructure and Mechanical Properties of CoCrFeNiMn High-Entropy Alloy |
| title_short | Effect of Boronizing on the Microstructure and Mechanical Properties of CoCrFeNiMn High-Entropy Alloy |
| title_sort | effect of boronizing on the microstructure and mechanical properties of cocrfenimn high entropy alloy |
| topic | high entropy alloy boronizing growth kinetics boronizing mechanism wear resistance |
| url | https://www.mdpi.com/1996-1944/16/10/3754 |
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