Excellent strength-ductility synergy in as-cast Al0.6CoCrFeNi2Mo0.08V0.04 high-entropy alloy at room and cryogenic temperatures
| Autor: | Shougang Duan, Xuan Huang, Chuanqiang Li, Yong Dong, Zhengrong Zhang |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Mechanical Engineering Alloy 02 engineering and technology engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure 01 natural sciences 0104 chemical sciences Dendrite (crystal) Flexural strength Mechanics of Materials Fracture (geology) engineering General Materials Science Elongation Composite material 0210 nano-technology Ductility Vacuum induction melting |
| Zdroj: | Materials Letters. 294:129778 |
| ISSN: | 0167-577X |
| DOI: | 10.1016/j.matlet.2021.129778 |
| Popis: | The Al0.6CoCrFeNi2Mo0.08V0.04 high-entropy alloy was prepared by vacuum induction melting. The alloy presented dendrite and inter-dendrite microstructure and showed excellent strength-ductility synergy at room and cryogenic temperatures. At room temperature, the yield strength reached 400 MPa while the elongation exceeded to 39%. With the decrease of temperatures, the yield strength, fracture strength, and the elongation were all improved. The maximum yield strength reached 560 MPa at −196 °C and the elongation exceeded 42%. The fracture mechanism was mainly a dimple-type ductile fracture. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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