Molybdenum-Rhenium Wire

Molybdenum-Rhenium Wire Molybdenum-Rhenium Wire

Molybdenum-Rhenium Wire

Molybdenum-Rhenium Wire

Molybdenum-rhenium wire (Mo-Re Wire) is a high-performance alloy wire made from molybdenum (Mo) and rhenium (Re). The addition of rhenium significantly enhances the ductility, recrystallization resistance, and high-temperature strength of molybdenum. Mo-Re wires are widely used in aerospace, medical imaging, high-temperature electronics, thermocouples, and nuclear applications where extreme performance is required.

1. Typical Chemical Composition

Grades

Rhenium (wt%)

Description

Mo14Re

~14%

Good ductility, used in general high-temperature parts

Mo41Re

~41%

Excellent high-temperature strength and thermal stability

Mo44.5Re

~44.5%

Common in high-temperature thermocouples and sensors

Mo47.5Re

~47.5%

Ultra-high temperature resistance, often for Type C thermocouples

2. Key Properties
Melting Point: 2470°C – 2760°C depending on Re content
High Recrystallization Temperature: Often above 1400°C, ideal for long-term high-temp operation
Excellent Ductility: Greatly improved formability and resistance to brittle fracture
Good Electrical Resistivity: Suitable for heating elements and thermocouples
Weldability: Good brazeability and weldability for medical and aerospace assemblies
Radiation Resistance: High tolerance to neutron irradiation, ideal for nuclear environments

3. Typical Applications

Aerospace & Propulsion Systems

Rocket nozzles, ion thruster components, heat shields, and structural high-temp parts

Medical Equipment

CT scan rotating anodes, X-ray tube heating elements, high-reliability connections

Electronics Industry

Microwave tube components, high-power electronic electrodes, vacuum devices

Thermocouple Materials

Mo-Re thermocouples (Type C, Type D) for ultra-high temperature measurements (>2000°C)

Nuclear Industry

Fuel cladding, target holders, and radiation-resistant structural elements

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