HfNbTaTiZr High Entropy Alloy Powder Description
HfNbTaTiZr High Entropy Alloy Powder is a complex refractory powder material with high strength, good ductility, thermal stability, and corrosion resistance. It has 2 refractory elements: Ta and Nb, which improve the highest working temperature to even 1600℃. Refractory metals are easily oxidized when contacting O2 at high temperatures. Adding Ti can protect this HEA deeply oxidized in the air by forming a TiO2 surface layer. Zr and Hf enhance the alloy’s strength, stability, resistance to deformation, and high-temperature stability.
HfNbTaTiZr High Entropy Alloy Powder Specifications
Chemical Composition
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Element
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Hf
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Nb
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Ta
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Ti
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Zr
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Content (%)
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19.5~20.5
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19.5~20.5
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19.5~20.5
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19.5~20.5
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19.5~20.5
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Physical Properties
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Particle size
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0-25, 15-53, 53-150, or custom made
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Density
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8.5~11 g/cm³
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Melting point
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>2000 ℃
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Working Temperature
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1200~1600 ℃
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HfNbTaTiZr High Entropy Alloy Powder Applications
- Aerospace: HfNbTaTiZr features high strength, corrosion resistance, and lightweight properties, therefore it is suitable for aerospace components such as turbine blades, structural parts, and engine components.
- Energy: HfNbTaTiZr exhibits excellent thermal stability, high-temperature strength, and corrosion resistance, so it is suitable for energy generation and storage applications, such as turbine components and heat exchangers.
- Automotive: HfNbTaTiZr alloy can be utilized in automotive applications, including engine parts, exhaust systems, and components requiring high-temperature strength and wear resistance.
- High-Temperature Applications: The exceptional strength, stability, and resistance to deformation at elevated temperatures make HfNbTaTiZr suitable for high-temperature environments, such as heat exchangers, furnaces, and thermal processing equipment.
- Research and Development: HfNbTaTiZr alloy powder can be used as a starting material for further research and development, allowing customization and exploration of its properties for specific applications.
- Additive Manufacturing: HfNbTaTiZr is well-suited for additive manufacturing processes, allowing the production of complex and customized components with exceptional mechanical strength and dimensional accuracy. It is particularly useful in powder bed fusion (PBF) and binder jetting (BJ) techniques.
High-Entropy Alloy (HEA) Powder Comparison Table
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Category
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HfNbTaTiZr Powder
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TiZrHfVNb Powder
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CoCrFeNiMo Powder
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Composition
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Refractory metals (Hf/Ta/Nb)
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Lightweight refractory (Ti/Zr/V)
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Transition metals (Co/Cr/Fe/Ni)
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Phase Structure
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BCC
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BCC
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FCC
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Tap Density
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4.5-5.0 g/cm³
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3.8-4.2 g/cm³
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4.8-5.2 g/cm³
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Room Temp. Strength
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1200-1500 MPa
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900-1100 MPa
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800-1000 MPa
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Fracture Toughness
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15-25 MPa·m½
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20-35 MPa·m½
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40-60 MPa·m½
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Radiation Resistance
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Excellent (anti-swelling)
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Good
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Poor (Ni/Co activation)
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Biocompatibility
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Limited (Ta/Nb for medical use)
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Excellent (non-toxic)
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Poor (Cr/Ni ion release)
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Primary Uses
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Aerospace TPS
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Biomedical implants, aerospace fasteners
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Chemical wear parts, mold steel alternatives
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HfNbTaTiZr High Entropy Alloy Powder Packaging
Our HfNbTaTiZr High Entropy Alloy Powder is carefully handled during storage and transportation to preserve the quality of our product in its original condition.
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