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Yan H, Liu R, Li S, Zhang Y, Xiao W, Xue B, Xiong B, Li X, Li Z. The Effects of the Al and Zr Contents on the Microstructure Evolution of Light-Weight Al xNbTiVZr y High Entropy Alloy. Materials (Basel) 2023; 16:7581. [PMID: 38138723 PMCID: PMC10744853 DOI: 10.3390/ma16247581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 11/28/2023] [Accepted: 12/02/2023] [Indexed: 12/24/2023]
Abstract
To investigate the comprehensive effects of the Al and Zr element contents on the microstructure evolution of the AlNbTiVZr series light-weight refractory high entropy alloys (HEAs), five samples were studied. Samples with different compositions were designated Al1.5NbTiVZr, Al1.5NbTiVZr0.5, AlNbTiVZr, AlNbTiVZr0.5, and Al0.5NbTiVZr0.5. The results demonstrated that the actual density of the studied HEA samples ranged from 5.291 to 5.826 g·cm-3. The microstructure of these HEAs contains a solid solution phase with a BCC structure and a Laves phase. The Laves phase was further identified as the ZrAlV intermetallic compound by TEM observations. The microstructure of the AlNbTiVZr series HEAs was affected by both the Al and Zr element contents, whereas the Zr element showed a more dominant effect due to Zr atoms occupying the core position of the ZrAlV Laves phase (C14 structure). Therefore, the as-cast Al0.5NbTiVZr0.5 sample exhibits the best room temperature compression property with a compression strength (σp) of 1783 MPa and an engineering strain of 28.8% due to having the lowest ZrAlV intermetallic compound area fraction (0.7%), as characterized by the EBSD technique.
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Affiliation(s)
- Hongwei Yan
- State Key Laboratory of Nonferrous Metals and Processes, China GRINM Group Co., Ltd., Beijing 100088, China; (H.Y.)
- GRIMAT Engineering Institute Co., Ltd., Beijing 101407, China
- General Research Institute for Nonferrous Metals, Beijing 100088, China
| | - Rui Liu
- State Key Laboratory of Nonferrous Metals and Processes, China GRINM Group Co., Ltd., Beijing 100088, China; (H.Y.)
- GRIMAT Engineering Institute Co., Ltd., Beijing 101407, China
- General Research Institute for Nonferrous Metals, Beijing 100088, China
| | - Shenglong Li
- State Key Laboratory of Nonferrous Metals and Processes, China GRINM Group Co., Ltd., Beijing 100088, China; (H.Y.)
- GRIMAT Engineering Institute Co., Ltd., Beijing 101407, China
- General Research Institute for Nonferrous Metals, Beijing 100088, China
| | - Yong’an Zhang
- State Key Laboratory of Nonferrous Metals and Processes, China GRINM Group Co., Ltd., Beijing 100088, China; (H.Y.)
- GRIMAT Engineering Institute Co., Ltd., Beijing 101407, China
- General Research Institute for Nonferrous Metals, Beijing 100088, China
| | - Wei Xiao
- State Key Laboratory of Nonferrous Metals and Processes, China GRINM Group Co., Ltd., Beijing 100088, China; (H.Y.)
- GRIMAT Engineering Institute Co., Ltd., Beijing 101407, China
- General Research Institute for Nonferrous Metals, Beijing 100088, China
| | - Boyu Xue
- State Key Laboratory of Nonferrous Metals and Processes, China GRINM Group Co., Ltd., Beijing 100088, China; (H.Y.)
- GRIMAT Engineering Institute Co., Ltd., Beijing 101407, China
- General Research Institute for Nonferrous Metals, Beijing 100088, China
| | - Baiqing Xiong
- State Key Laboratory of Nonferrous Metals and Processes, China GRINM Group Co., Ltd., Beijing 100088, China; (H.Y.)
- GRIMAT Engineering Institute Co., Ltd., Beijing 101407, China
- General Research Institute for Nonferrous Metals, Beijing 100088, China
| | - Xiwu Li
- State Key Laboratory of Nonferrous Metals and Processes, China GRINM Group Co., Ltd., Beijing 100088, China; (H.Y.)
- GRIMAT Engineering Institute Co., Ltd., Beijing 101407, China
- General Research Institute for Nonferrous Metals, Beijing 100088, China
| | - Zhihui Li
- State Key Laboratory of Nonferrous Metals and Processes, China GRINM Group Co., Ltd., Beijing 100088, China; (H.Y.)
- GRIMAT Engineering Institute Co., Ltd., Beijing 101407, China
- General Research Institute for Nonferrous Metals, Beijing 100088, China
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