MPEA Hf1 Nb1 Ta1 Ti1
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Familie: High-Entropy Alloy (MPEA)
High-entropy alloy. Phase: BCC. Processing: ANNEAL.
Leistungsbewertungen
Performance Radar
| Eigenschaft | Rating |
|---|---|
| Strength | 6 / 10 |
| Corrosion Res. | 5 / 10 |
| Lightweight | 3 / 10 |
| Machinability | 4 / 10 |
| Affordability | 5 / 10 |
| Heat Res. | 5 / 10 |
Zusammensetzung
Mechanische Eigenschaften
| Streckgrenze | 722.0 MPa |
| Härte (Brinell) | 275.0 HB |
| Härte (Rockwell) | |
| Elastizitätsmodul | 119.0 GPa |
Physikalische Eigenschaften
| Dichte | 10.900 g/cm³ |
Chemische Zusammensetzung
| Element | Prozentsatz (%) |
|---|---|
| Hf | 1,0 |
| Nb | 1,0 |
| Ta | 1,0 |
| Ti | 1,0 |
Bezugsquellen MPEA Hf1 Nb1 Ta1 Ti1
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Beschreibung
This medium-entropy alloy (MEA) with nominal composition Hf1 Nb1 Ta1 Ti1 is a predominantly face-centered cubic (FCC) austenitic alloy system within the multi-principal element alloy research space, incorporating hafnium, niobium, tantalum, and titanium. 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.