Optimize the Mechanical Properties of Al<sub>0.6</sub>CoCrFeNi High-Entropy Alloys by Thermo-Mechanical Processing
The phase stability, microstructural evolution, and mechanical properties of Al<sub>0.6</sub>CoCrFeNi high-entropy alloy (HEA) subjected to different thermo-mechanical treatments were systematically investigated in the present study. The face center cubic (FCC) matrix, B2, and minor Body...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-01-01
|
| Series: | Metals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-4701/12/2/178 |
| _version_ | 1797478085134647296 |
|---|---|
| author | Huijun Yang Yaqin Tan Junwei Qiao Jeffrey A. Hawk Yong Zhang Michael Gao Peter K. Liaw |
| author_facet | Huijun Yang Yaqin Tan Junwei Qiao Jeffrey A. Hawk Yong Zhang Michael Gao Peter K. Liaw |
| author_sort | Huijun Yang |
| collection | DOAJ |
| description | The phase stability, microstructural evolution, and mechanical properties of Al<sub>0.6</sub>CoCrFeNi high-entropy alloy (HEA) subjected to different thermo-mechanical treatments were systematically investigated in the present study. The face center cubic (FCC) matrix, B2, and minor Body Center Cubic (BCC) phases were observed in the as-cast state. The morphology of the B2 precipitates evolved from needle-like to droplet-shaped when annealed at 900 °C, 1000 °C, and 1100 °C. The resulting yield stress of this FCC/B2 duplex-phase HEA after annealing heat treatments was successfully analyzed based on the contributions from solid solution strengthening, precipitate strengthening, grain boundary hardening, and dislocation hardening. |
| first_indexed | 2024-03-09T21:27:01Z |
| format | Article |
| id | doaj.art-da787b8dc3bf46d485845a234bacc58a |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T21:27:01Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-da787b8dc3bf46d485845a234bacc58a2023-11-23T21:06:10ZengMDPI AGMetals2075-47012022-01-0112217810.3390/met12020178Optimize the Mechanical Properties of Al<sub>0.6</sub>CoCrFeNi High-Entropy Alloys by Thermo-Mechanical ProcessingHuijun Yang0Yaqin Tan1Junwei Qiao2Jeffrey A. Hawk3Yong Zhang4Michael Gao5Peter K. Liaw6Laboratory of High-Entropy Alloys, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaLaboratory of High-Entropy Alloys, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaLaboratory of High-Entropy Alloys, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaNational Energy Technology Laboratory, 1450 Queen Ave SW, Albany, OR 97321, USAState Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, ChinaNational Energy Technology Laboratory, 1450 Queen Ave SW, Albany, OR 97321, USADepartment of Materials Science and Engineering, The University of Tennessee, Knoxville, TN 37996, USAThe phase stability, microstructural evolution, and mechanical properties of Al<sub>0.6</sub>CoCrFeNi high-entropy alloy (HEA) subjected to different thermo-mechanical treatments were systematically investigated in the present study. The face center cubic (FCC) matrix, B2, and minor Body Center Cubic (BCC) phases were observed in the as-cast state. The morphology of the B2 precipitates evolved from needle-like to droplet-shaped when annealed at 900 °C, 1000 °C, and 1100 °C. The resulting yield stress of this FCC/B2 duplex-phase HEA after annealing heat treatments was successfully analyzed based on the contributions from solid solution strengthening, precipitate strengthening, grain boundary hardening, and dislocation hardening.https://www.mdpi.com/2075-4701/12/2/178high-entropy alloythermo-mechanical treatmentmicrostructurephase stabilitystrengthening mechanisms |
| spellingShingle | Huijun Yang Yaqin Tan Junwei Qiao Jeffrey A. Hawk Yong Zhang Michael Gao Peter K. Liaw Optimize the Mechanical Properties of Al<sub>0.6</sub>CoCrFeNi High-Entropy Alloys by Thermo-Mechanical Processing Metals high-entropy alloy thermo-mechanical treatment microstructure phase stability strengthening mechanisms |
| title | Optimize the Mechanical Properties of Al<sub>0.6</sub>CoCrFeNi High-Entropy Alloys by Thermo-Mechanical Processing |
| title_full | Optimize the Mechanical Properties of Al<sub>0.6</sub>CoCrFeNi High-Entropy Alloys by Thermo-Mechanical Processing |
| title_fullStr | Optimize the Mechanical Properties of Al<sub>0.6</sub>CoCrFeNi High-Entropy Alloys by Thermo-Mechanical Processing |
| title_full_unstemmed | Optimize the Mechanical Properties of Al<sub>0.6</sub>CoCrFeNi High-Entropy Alloys by Thermo-Mechanical Processing |
| title_short | Optimize the Mechanical Properties of Al<sub>0.6</sub>CoCrFeNi High-Entropy Alloys by Thermo-Mechanical Processing |
| title_sort | optimize the mechanical properties of al sub 0 6 sub cocrfeni high entropy alloys by thermo mechanical processing |
| topic | high-entropy alloy thermo-mechanical treatment microstructure phase stability strengthening mechanisms |
| url | https://www.mdpi.com/2075-4701/12/2/178 |
| work_keys_str_mv | AT huijunyang optimizethemechanicalpropertiesofalsub06subcocrfenihighentropyalloysbythermomechanicalprocessing AT yaqintan optimizethemechanicalpropertiesofalsub06subcocrfenihighentropyalloysbythermomechanicalprocessing AT junweiqiao optimizethemechanicalpropertiesofalsub06subcocrfenihighentropyalloysbythermomechanicalprocessing AT jeffreyahawk optimizethemechanicalpropertiesofalsub06subcocrfenihighentropyalloysbythermomechanicalprocessing AT yongzhang optimizethemechanicalpropertiesofalsub06subcocrfenihighentropyalloysbythermomechanicalprocessing AT michaelgao optimizethemechanicalpropertiesofalsub06subcocrfenihighentropyalloysbythermomechanicalprocessing AT peterkliaw optimizethemechanicalpropertiesofalsub06subcocrfenihighentropyalloysbythermomechanicalprocessing |