MPEA Hf0.787 Nb0.142 Ta0.142 Ti1 Zr0.787
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Family: High-Entropy Alloy (MPEA)
High-entropy alloy. Phase: BCC. Processing: WROUGHT.
Performance Ratings
Performance Radar
Composition
Mechanical Properties
| Tensile Strength | 995.0 MPa |
| Yield Strength | 540.0 MPa |
| Hardness (Rockwell) | |
| Elastic Modulus | 92.0 GPa |
Physical Properties
| Density | 8.500 g/cm³ |
Chemical Composition
| Element | Percentage (%) |
|---|---|
| Hf | 0.787 |
| Nb | 0.142 |
| Ta | 0.142 |
| Ti | 1.0 |
| Zr | 0.787 |
Where to Buy MPEA Hf0.787 Nb0.142 Ta0.142 Ti1 Zr0.787
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Description
This high-entropy alloy (HEA) with nominal composition Hf0.787 Nb0.142 Ta0.142 Ti1 Zr0.787 is a predominantly face-centered cubic (FCC) austenitic alloy system within the multi-principal element alloy research space, incorporating Hf, Nb, Ta and 2 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.