MPEA Al0.214 Nb0.714 Ta0.571 Ti1 V0.143 Zr0.929
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Famille: High-Entropy Alloy (MPEA)
High-entropy alloy. Phase: BCC. Processing: OTHER.
Notations de performance
Performance Radar
| Propriété | Rating |
|---|---|
| Strength | 6 / 10 |
| Corrosion Res. | 9 / 10 |
| Lightweight | 5 / 10 |
| Machinability | 1 / 10 |
| Affordability | 3 / 10 |
| Heat Res. | 8 / 10 |
Composition
Propriétés mécaniques
| Résistance à la traction | 693.0 MPa |
| Limite d'élasticité | 678.0 MPa |
| Allongement | 50.0% |
| Dureté (Brinell) | 500.0 HB |
| Dureté (Rockwell) | |
| Module d'élasticité | 107.0 GPa |
Propriétés physiques
| Densité | 7.700 g/cm³ |
Composition chimique
| Élément | Pourcentage (%) |
|---|---|
| V | 0,143 |
| Al | 0,214 |
| Nb | 0,714 |
| Ta | 0,571 |
| Ti | 1,0 |
| Zr | 0,929 |
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Description
This complex concentrated alloy (CCA) with nominal composition Al0.214 Nb0.714 Ta0.571 Ti1 V0.143 Zr0.929 is a predominantly face-centered cubic (FCC) austenitic alloy system within the multi-principal element alloy research space, incorporating Al, Nb, Ta and 3 additional elements. Key properties include very high melting point (>1800°C), excellent high-temperature strength retention, and good oxidation resistance at elevated temperatures; titanium additions promote intermetallic precipitation for additional strengthening. Investigated applications include high-temperature structural applications, advanced gas turbine components, nuclear energy systems, and refractory coating materials.