Tailoring Mechanical and Magnetic Properties in Dual-Phase FeCoNi(CuAl)<sub>0.8</sub> High-Entropy Alloy
For tailoring the mechanical and magnetic properties of dual-phase high-entropy alloys (HEAs), it is crucial to understand the effect of each phase on the overall properties. In this paper, the effects of individual FCC and BCC phases on the mechanical and magnetic properties of the FeCoNi(CuAl)<...
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MDPI AG
2023-11-01
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| Online Access: | https://www.mdpi.com/1996-1944/16/22/7222 |
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| author | Xiaohua Tan Lingmiao Chen Mengxin Lv Wenfeng Peng Hui Xu |
| author_facet | Xiaohua Tan Lingmiao Chen Mengxin Lv Wenfeng Peng Hui Xu |
| author_sort | Xiaohua Tan |
| collection | DOAJ |
| description | For tailoring the mechanical and magnetic properties of dual-phase high-entropy alloys (HEAs), it is crucial to understand the effect of each phase on the overall properties. In this paper, the effects of individual FCC and BCC phases on the mechanical and magnetic properties of the FeCoNi(CuAl)<sub>0.8</sub> HEA are investigated by nanoindentation and first-principles calculations. The nano-hardness of the BCC phase is 8.73 GPa, which is nearly double the 4.60 GPa of the FCC phase, which ascribes to spherical nanoprecipitates that are only observed in the BCC phase leading to precipitation hardening. First-principles calculations on the electronic structure show that calculated saturation magnetization (M<sub>s</sub>) of the BCC phase is 0.81 T, higher than 0.77 T of the FCC phase. An approximate yield strength and M<sub>s</sub> can be estimated by summing the volume-fraction-weighted contributions from each phase, and are in good agreement with experimental values. It indicates that the overall mechanical and magnetic properties of the dual-phase HEAs can be tailored by tuning the volume fraction of the individual phase. Our findings are helpful to design prospective dual-phase HEAs with both good mechanical properties and soft magnetic performance by adjusting the content of each phase. |
| first_indexed | 2024-03-09T16:39:29Z |
| format | Article |
| id | doaj.art-c64c694d4a49449d9cdc9fc812294cd3 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T16:39:29Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
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| spelling | doaj.art-c64c694d4a49449d9cdc9fc812294cd32023-11-24T14:53:53ZengMDPI AGMaterials1996-19442023-11-011622722210.3390/ma16227222Tailoring Mechanical and Magnetic Properties in Dual-Phase FeCoNi(CuAl)<sub>0.8</sub> High-Entropy AlloyXiaohua Tan0Lingmiao Chen1Mengxin Lv2Wenfeng Peng3Hui Xu4Institute of Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, ChinaInstitute of Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, ChinaInstitute of Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, ChinaInstitute of Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, ChinaInstitute of Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, ChinaFor tailoring the mechanical and magnetic properties of dual-phase high-entropy alloys (HEAs), it is crucial to understand the effect of each phase on the overall properties. In this paper, the effects of individual FCC and BCC phases on the mechanical and magnetic properties of the FeCoNi(CuAl)<sub>0.8</sub> HEA are investigated by nanoindentation and first-principles calculations. The nano-hardness of the BCC phase is 8.73 GPa, which is nearly double the 4.60 GPa of the FCC phase, which ascribes to spherical nanoprecipitates that are only observed in the BCC phase leading to precipitation hardening. First-principles calculations on the electronic structure show that calculated saturation magnetization (M<sub>s</sub>) of the BCC phase is 0.81 T, higher than 0.77 T of the FCC phase. An approximate yield strength and M<sub>s</sub> can be estimated by summing the volume-fraction-weighted contributions from each phase, and are in good agreement with experimental values. It indicates that the overall mechanical and magnetic properties of the dual-phase HEAs can be tailored by tuning the volume fraction of the individual phase. Our findings are helpful to design prospective dual-phase HEAs with both good mechanical properties and soft magnetic performance by adjusting the content of each phase.https://www.mdpi.com/1996-1944/16/22/7222dual-phase high-entropy alloynanoindentationmagnetic propertymechanical propertyfirst-principles calculations |
| spellingShingle | Xiaohua Tan Lingmiao Chen Mengxin Lv Wenfeng Peng Hui Xu Tailoring Mechanical and Magnetic Properties in Dual-Phase FeCoNi(CuAl)<sub>0.8</sub> High-Entropy Alloy Materials dual-phase high-entropy alloy nanoindentation magnetic property mechanical property first-principles calculations |
| title | Tailoring Mechanical and Magnetic Properties in Dual-Phase FeCoNi(CuAl)<sub>0.8</sub> High-Entropy Alloy |
| title_full | Tailoring Mechanical and Magnetic Properties in Dual-Phase FeCoNi(CuAl)<sub>0.8</sub> High-Entropy Alloy |
| title_fullStr | Tailoring Mechanical and Magnetic Properties in Dual-Phase FeCoNi(CuAl)<sub>0.8</sub> High-Entropy Alloy |
| title_full_unstemmed | Tailoring Mechanical and Magnetic Properties in Dual-Phase FeCoNi(CuAl)<sub>0.8</sub> High-Entropy Alloy |
| title_short | Tailoring Mechanical and Magnetic Properties in Dual-Phase FeCoNi(CuAl)<sub>0.8</sub> High-Entropy Alloy |
| title_sort | tailoring mechanical and magnetic properties in dual phase feconi cual sub 0 8 sub high entropy alloy |
| topic | dual-phase high-entropy alloy nanoindentation magnetic property mechanical property first-principles calculations |
| url | https://www.mdpi.com/1996-1944/16/22/7222 |
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