[(AlxTi1−x)-(FeCoNi)12](AlxTi1−x)0.5Cr2.5 High-Entropy Alloy Coating by Laser Cladding
Abstract
:1. Introduction
2. Compositional Design Based on Cluster-Plus-Glue-Atom Model
3. Material and Methods
4. Results
4.1. Microstructural Analysis
Element | ΔHmix (kJ/mol) | |||||
---|---|---|---|---|---|---|
Fe | Co | Ni | Cr | Al | Ti | |
Fe | - | −1 | −2 | −1 | −11 | −17 |
Co | - | 0 | −4 | −19 | −28 | |
Ni | - | −7 | −22 | −35 | ||
Cr | - | −10 | −7 | |||
Al | - | −30 |
Element | Atomic Radius (Å) | Crystal | Tm (K) | VEC |
---|---|---|---|---|
Fe | 1.24 | BCC | 1811 | 8 |
Co | 1.25 | HCP | 1768 | 9 |
Ni | 1.25 | FCC | 1728 | 10 |
Cr | 1.25 | BCC | 2180 | 6 |
Al | 1.43 | FCC | 933 | 3 |
Ti | 1.46 | HCP | 1941 | 4 |
Alloy Composition | Tm(K) | ΔSmix(J/K·mol) | ΔHmix(kJ/mol) | Ω | δ | VEC |
---|---|---|---|---|---|---|
0 | 1849.28 | 12.90 | −11.90 | 2.00 | 4.91% | 8.06 |
0.5 | 1801.91 | 12.25 | −10 | 2.21 | 4.59% | 8.02 |
1 | 1849.28 | 12.90 | −11.90 | 2.00 | 4.91% | 8.06 |
4.2. Corrosion Resistance
4.3. Microhardness
4.4. Wear Resistance
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Electrochemical Parameters | X = 0 | X = 0.5 | X = 1 | Substrate |
---|---|---|---|---|
Ecorr/mVSCE | −553.7 | −605.0 | −468.8 | −273.0 |
Icorr/μA cm−2 | 31.41 | 35.65 | 44.77 | 33.34 |
Epit/mVSCE | 838.8 | 756.7 | 898.6 | 170.8 |
Epit − Ecorr/mVSCE−2 | 1392.5 | 1361.7 | 1367.4 | 443.8 |
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Bo, S.; Guo, Y.; Liu, Q. [(AlxTi1−x)-(FeCoNi)12](AlxTi1−x)0.5Cr2.5 High-Entropy Alloy Coating by Laser Cladding. Metals 2022, 12, 740. https://doi.org/10.3390/met12050740
Bo S, Guo Y, Liu Q. [(AlxTi1−x)-(FeCoNi)12](AlxTi1−x)0.5Cr2.5 High-Entropy Alloy Coating by Laser Cladding. Metals. 2022; 12(5):740. https://doi.org/10.3390/met12050740
Chicago/Turabian StyleBo, Shenghong, Yaxiong Guo, and Qibin Liu. 2022. "[(AlxTi1−x)-(FeCoNi)12](AlxTi1−x)0.5Cr2.5 High-Entropy Alloy Coating by Laser Cladding" Metals 12, no. 5: 740. https://doi.org/10.3390/met12050740