Effect of Zr addition on the AlCoCrFeNiZrx high-entropy alloy
Adding alloying elements is a common way to regulate the microstructure in the high entropy alloys (HEAs). In this study, the effect of Zr addition on the crystal structure and mechanical properties of high entropy alloys was explored by XRD, molecular dynamics simulation and nanoindentation test. T...
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Elsevier
2025-09-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425018770 |
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| author | Xinyue Wang Tianxiang Zhao Jiankang Huang Xiaoquan Yu Yiming Luo Yingwei Chen Ling Shao |
| author_facet | Xinyue Wang Tianxiang Zhao Jiankang Huang Xiaoquan Yu Yiming Luo Yingwei Chen Ling Shao |
| author_sort | Xinyue Wang |
| collection | DOAJ |
| description | Adding alloying elements is a common way to regulate the microstructure in the high entropy alloys (HEAs). In this study, the effect of Zr addition on the crystal structure and mechanical properties of high entropy alloys was explored by XRD, molecular dynamics simulation and nanoindentation test. The results show that with the increase of the Zr element ratio, the crystal structure of the alloy changes from BCC to a mixed crystal structure including FCC and amorphous structure. The nanoindentation test shows that the hardness of the alloy increases first and then decreases with the increase of Zr element ratio, among which the hardness of Zr0.8 alloy is the highest, while the elastic modulus decreases with the increase of Zr ratio. In addition, molecular dynamics simulation also found that stacking faults exist in Zr0.8 alloy, forming Lomer-Cottrell (L-C) locks, which significantly improved the performance of the material. |
| format | Article |
| id | doaj-art-9a8bfa6b14c84a238fcf17644fdc064a |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-9a8bfa6b14c84a238fcf17644fdc064a2025-08-20T03:31:49ZengElsevierJournal of Materials Research and Technology2238-78542025-09-013819120010.1016/j.jmrt.2025.07.219Effect of Zr addition on the AlCoCrFeNiZrx high-entropy alloyXinyue Wang0Tianxiang Zhao1Jiankang Huang2Xiaoquan Yu3Yiming Luo4Yingwei Chen5Ling Shao6State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, Lanzhou University of Technology, Lanzhou, 730050, ChinaState Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, Lanzhou University of Technology, Lanzhou, 730050, ChinaState Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, Lanzhou University of Technology, Lanzhou, 730050, China; Corresponding author.Zhejiang Provincial Innovation Center of Laser Intelligent Equipment Technology, Wenzhou, 325000, China; Corresponding author.State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, Lanzhou University of Technology, Lanzhou, 730050, ChinaState Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, Lanzhou University of Technology, Lanzhou, 730050, ChinaZhejiang Provincial Key Laboratory for Cutting Tools, Taizhou University, Taizhou, 318000, ChinaAdding alloying elements is a common way to regulate the microstructure in the high entropy alloys (HEAs). In this study, the effect of Zr addition on the crystal structure and mechanical properties of high entropy alloys was explored by XRD, molecular dynamics simulation and nanoindentation test. The results show that with the increase of the Zr element ratio, the crystal structure of the alloy changes from BCC to a mixed crystal structure including FCC and amorphous structure. The nanoindentation test shows that the hardness of the alloy increases first and then decreases with the increase of Zr element ratio, among which the hardness of Zr0.8 alloy is the highest, while the elastic modulus decreases with the increase of Zr ratio. In addition, molecular dynamics simulation also found that stacking faults exist in Zr0.8 alloy, forming Lomer-Cottrell (L-C) locks, which significantly improved the performance of the material.http://www.sciencedirect.com/science/article/pii/S2238785425018770High entropy alloyMolecular dynamicsNanoindentationMicrostructure |
| spellingShingle | Xinyue Wang Tianxiang Zhao Jiankang Huang Xiaoquan Yu Yiming Luo Yingwei Chen Ling Shao Effect of Zr addition on the AlCoCrFeNiZrx high-entropy alloy Journal of Materials Research and Technology High entropy alloy Molecular dynamics Nanoindentation Microstructure |
| title | Effect of Zr addition on the AlCoCrFeNiZrx high-entropy alloy |
| title_full | Effect of Zr addition on the AlCoCrFeNiZrx high-entropy alloy |
| title_fullStr | Effect of Zr addition on the AlCoCrFeNiZrx high-entropy alloy |
| title_full_unstemmed | Effect of Zr addition on the AlCoCrFeNiZrx high-entropy alloy |
| title_short | Effect of Zr addition on the AlCoCrFeNiZrx high-entropy alloy |
| title_sort | effect of zr addition on the alcocrfenizrx high entropy alloy |
| topic | High entropy alloy Molecular dynamics Nanoindentation Microstructure |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425018770 |
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