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Tungsten-Rhenium (WRe) Alloy
Tungsten-Rhenium (W-Re) Alloy
A high-temperature alloy widely used for its exceptional durability and improved ductility.
The W-Re alloy is typically used in high-temperature applications such as rocket nozzles, thermocouples, and cutting tools. In a common tungsten-5% rhenium alloy, approximately 95% tungsten is alloyed with 5% rhenium, lowering brittleness while preserving tungsten's extreme melting point.
| Property | Value | Notes |
|---|---|---|
| Composition | W ~95%, Re ~5% | Common eutectic composition for improved ductility |
| Melting Point | ~3100°C | Lower than pure tungsten yet extremely high |
| Electrical Resistivity | ~6 µΩ·cm | Very low resistivity for high-temperature performance |
| Thermal Conductivity | ~150 W/m·K | Efficient heat dissipation under extreme conditions |
| Mechanical Strength | ~600 MPa | High strength with improved ductility |
Conceptual 3D Microstructure
A simplified 3D model displaying alternating layers of tungsten (dark gray) and rhenium (bright red).
Applications
High-Temp Thermocouples
Enables accurate temperature measurements in extreme environments.
Cutting Tools
Offers high wear resistance and durability for precision machining.
Aerospace Components
Delivers exceptional performance in high-temperature aerospace systems.
Scientific Instruments
Provides reliability and stability in high-precision measurement devices.
Element Breakdown
Symbol: W
Atomic Number: 74
Key Role in W-Re: Provides an extremely high melting point and structural strength.
Fun Fact: Tungsten has the highest melting point of all metals.
Symbol: Re
Atomic Number: 75
Key Role in W-Re: Improves ductility and resistance to embrittlement at high temperatures.
Fun Fact: Rhenium is one of the rarest elements in the Earth's crust.
Performance Comparison: Melting Point
Comparison of melting points among popular alloys. The W-Re alloy's ~3100°C melting point is ideal for extreme high-temperature applications.
Manufacturing & Production
The tungsten-rhenium alloy is produced by melting high-purity tungsten and rhenium under controlled conditions. The addition of approximately 5% rhenium improves the ductility and overall performance of tungsten, making it suitable for high-temperature thermocouples and cutting tools.
Safety & Handling
- Handle molten W-Re alloy with proper protective gear to avoid burns.
- Work in a well-ventilated area and follow industry-standard safety protocols.
- Due to the high operating temperatures, ensure that equipment is rated for extreme conditions.