MPEA Nb0.333 Ta0.667 Ti0.667 Zr1
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Family: High-Entropy Alloy (MPEA)
High-entropy alloy. Phase: other. Processing: CAST.
Performance Ratings
Performance Radar
| Property | Rating |
|---|---|
| Strength | 7 / 10 |
| Corrosion Res. | 5 / 10 |
| Lightweight | 4 / 10 |
| Machinability | 3 / 10 |
| Affordability | 5 / 10 |
| Heat Res. | 5 / 10 |
Composition
Mechanical Properties
| Tensile Strength | 843.0 MPa |
| Elongation | 0.0% |
| Hardness (Brinell) | 489.0 HB |
| Hardness (Rockwell) |
Physical Properties
| Density | 8.600 g/cm³ |
Chemical Composition
| Element | Percentage (%) |
|---|---|
| Nb | 0.333 |
| Ta | 0.667 |
| Ti | 0.667 |
| Zr | 1.0 |
Where to Buy MPEA Nb0.333 Ta0.667 Ti0.667 Zr1
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Description
This medium-entropy alloy (MEA) with nominal composition Nb0.333 Ta0.667 Ti0.667 Zr1 is a predominantly face-centered cubic (FCC) austenitic alloy system within the multi-principal element alloy research space, incorporating niobium, tantalum, titanium, and zirconium. 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.