Microstructure and Wear Behavior of AlxCoCuNiTi (x = 0, 0.4, and 1) High-Entropy Alloy Coatings
Al<sub>x</sub>CoCuNiTi (x = 0, 0.4, and 1) high-entropy alloy coatings on 45 steel substrates were prepared by laser cladding, and their phase structure, microstructure, element partition, and wear behavior were investigated. The results show that the Al<sub>x</sub>CoCuNiTi (...
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2024-11-01
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| author | Mingxing Ma Zhixin Wang Chengjun Zhu Ying Dong Liang Zhao Lixin Liu Dachuan Zhu Deliang Zhang |
| author_facet | Mingxing Ma Zhixin Wang Chengjun Zhu Ying Dong Liang Zhao Lixin Liu Dachuan Zhu Deliang Zhang |
| author_sort | Mingxing Ma |
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| description | Al<sub>x</sub>CoCuNiTi (x = 0, 0.4, and 1) high-entropy alloy coatings on 45 steel substrates were prepared by laser cladding, and their phase structure, microstructure, element partition, and wear behavior were investigated. The results show that the Al<sub>x</sub>CoCuNiTi (x = 0, 0.4, and 1) coatings have a dual-phase structure of FCC and BCC. With the increase of x from 0 to 1, the content of the FCC phase decreases from 66.9 wt.% to 14.3 wt.%, while the content of the BCC phase increases from 33.1 wt.% to 85.7 wt.%. When x = 0.4, the lattice constants of the two phases are the largest, and their densities are the smallest. The microstructure of the Al<sub>x</sub>CoCuNiTi (x = 0, 0.4, and 1) coatings is composed of BCC-phase dendrites and FCC-phase interdendrite regions. Ti is mainly enriched in the primary phase or BCC dendrites, Cu is enriched in the interdendrite regions, and Al is enriched in the dendrites. The friction coefficients of Al<sub>x</sub>CoCuNiTi (x = 0, 0.4, and 1) coatings during wear tests are 0.691, 0.691, and 0.627, respectively. The lowering of the wear friction coefficient when increasing the Al content is mainly related to the change in phase structure, microstructure, and wear mechanism. |
| format | Article |
| id | doaj-art-5c79a2d56b1d400fbbd25649cf1097ce |
| institution | Kabale University |
| issn | 2075-4701 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
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| series | Metals |
| spelling | doaj-art-5c79a2d56b1d400fbbd25649cf1097ce2024-11-26T18:13:34ZengMDPI AGMetals2075-47012024-11-011411128010.3390/met14111280Microstructure and Wear Behavior of AlxCoCuNiTi (x = 0, 0.4, and 1) High-Entropy Alloy CoatingsMingxing Ma0Zhixin Wang1Chengjun Zhu2Ying Dong3Liang Zhao4Lixin Liu5Dachuan Zhu6Deliang Zhang7School of Mechanical Engineering, Henan Polytechnic Institute, Nanyang 473000, ChinaSchool of Materials Electronics and Energy Storage, Zhongyuan University of Technology, Zhengzhou 451191, ChinaSchool of Mechanical Engineering, Henan Polytechnic Institute, Nanyang 473000, ChinaSchool of Mechanical Engineering, Henan Polytechnic Institute, Nanyang 473000, ChinaSchool of Materials Electronics and Energy Storage, Zhongyuan University of Technology, Zhengzhou 451191, ChinaSchool of Mechanical Engineering, Henan Polytechnic Institute, Nanyang 473000, ChinaCollege of Material Science and Engineering, Sichuan University, Chengdu 610065, ChinaSchool of Materials Science and Engineering, Northeastern University, Shenyang 110819, ChinaAl<sub>x</sub>CoCuNiTi (x = 0, 0.4, and 1) high-entropy alloy coatings on 45 steel substrates were prepared by laser cladding, and their phase structure, microstructure, element partition, and wear behavior were investigated. The results show that the Al<sub>x</sub>CoCuNiTi (x = 0, 0.4, and 1) coatings have a dual-phase structure of FCC and BCC. With the increase of x from 0 to 1, the content of the FCC phase decreases from 66.9 wt.% to 14.3 wt.%, while the content of the BCC phase increases from 33.1 wt.% to 85.7 wt.%. When x = 0.4, the lattice constants of the two phases are the largest, and their densities are the smallest. The microstructure of the Al<sub>x</sub>CoCuNiTi (x = 0, 0.4, and 1) coatings is composed of BCC-phase dendrites and FCC-phase interdendrite regions. Ti is mainly enriched in the primary phase or BCC dendrites, Cu is enriched in the interdendrite regions, and Al is enriched in the dendrites. The friction coefficients of Al<sub>x</sub>CoCuNiTi (x = 0, 0.4, and 1) coatings during wear tests are 0.691, 0.691, and 0.627, respectively. The lowering of the wear friction coefficient when increasing the Al content is mainly related to the change in phase structure, microstructure, and wear mechanism.https://www.mdpi.com/2075-4701/14/11/1280AlxCoCuNiTimicrostructurewear behaviorhigh-entropy alloy coating |
| spellingShingle | Mingxing Ma Zhixin Wang Chengjun Zhu Ying Dong Liang Zhao Lixin Liu Dachuan Zhu Deliang Zhang Microstructure and Wear Behavior of AlxCoCuNiTi (x = 0, 0.4, and 1) High-Entropy Alloy Coatings Metals AlxCoCuNiTi microstructure wear behavior high-entropy alloy coating |
| title | Microstructure and Wear Behavior of AlxCoCuNiTi (x = 0, 0.4, and 1) High-Entropy Alloy Coatings |
| title_full | Microstructure and Wear Behavior of AlxCoCuNiTi (x = 0, 0.4, and 1) High-Entropy Alloy Coatings |
| title_fullStr | Microstructure and Wear Behavior of AlxCoCuNiTi (x = 0, 0.4, and 1) High-Entropy Alloy Coatings |
| title_full_unstemmed | Microstructure and Wear Behavior of AlxCoCuNiTi (x = 0, 0.4, and 1) High-Entropy Alloy Coatings |
| title_short | Microstructure and Wear Behavior of AlxCoCuNiTi (x = 0, 0.4, and 1) High-Entropy Alloy Coatings |
| title_sort | microstructure and wear behavior of alxcocuniti x 0 0 4 and 1 high entropy alloy coatings |
| topic | AlxCoCuNiTi microstructure wear behavior high-entropy alloy coating |
| url | https://www.mdpi.com/2075-4701/14/11/1280 |
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