MPEA Co0.564 Nb0.795 Ta0.103 Ti1 W0.103
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Family: High-Entropy Alloy (MPEA)
High-entropy alloy. Phase: other. Processing: CAST.
Performance Ratings
Performance Radar
Composition
Mechanical Properties
| Hardness (Brinell) | 277.0 HB |
| Hardness (Rockwell) |
Physical Properties
| Density | 7.700 g/cm³ |
Chemical Composition
| Element | Percentage (%) |
|---|---|
| W | 0.103 |
| Co | 0.564 |
| Nb | 0.795 |
| Ta | 0.103 |
| Ti | 1.0 |
Where to Buy MPEA Co0.564 Nb0.795 Ta0.103 Ti1 W0.103
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Description
This high-entropy alloy (HEA) with nominal composition Co0.564 Nb0.795 Ta0.103 Ti1 W0.103 is a predominantly face-centered cubic (FCC) austenitic alloy system within the multi-principal element alloy research space, incorporating Co, 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; molybdenum/tungsten additions provide enhanced solid-solution strengthening and creep resistance; 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.