Molybdenum Aluminum Alloy

 

Molybdenum Aluminum Alloy is a high-performance alloy material made by using aluminum as the base and adding metallic molybdenum (the molybdenum content is usually between 2% and 30%, and can reach 50% to 85% when used as an intermediate alloy). This alloy is formed into solid solutions or intermetallic compounds through melting or powder metallurgy techniques, integrating the low density characteristics of aluminum with the high melting point and high hardness advantages of molybdenum. It is an ideal solution to the problems of insufficient strength and poor heat resistance of pure aluminum, and is widely used in high-end industrial fields such as aerospace, automotive manufacturing, and electronic and electrical industries.

 

 

1.Extremely high strength and hardness

The aluminum-molybdenum alloy is strengthened by the solid solution of molybdenum atoms and the formation of intermetallic compounds (such as Al₁₂Mo, Al₈Mo₃), significantly enhancing the tensile strength and hardness. Its strength exceeds that of ordinary aluminum alloys, and it can still maintain excellent creep resistance in high-temperature environments, effectively resisting the deformation risks during long-term use, and is suitable for high-load structural components.

 

2. Outstanding heat resistance and resistance to high-temperature creep

Ordinary aluminum alloys experience a significant drop in strength above 200°C, while the recrystallization temperature of aluminum-molybdenum alloys is significantly increased due to the addition of molybdenum. They can maintain high strength and oxidation resistance at temperatures as high as 300°C or even higher. This characteristic makes them the core material for engine components, high-temperature industrial equipment, and other applications.

 

3. Excellent corrosion resistance

The molybdenum element enhances the stability of the oxide film on the aluminum surface and improves the resistance to pitting corrosion in chloride ion environments. Aluminum-molybdenum alloys perform exceptionally well in marine engineering, chemical equipment and other humid or corrosive environments, significantly extending the service life of the equipment.

 

4. Excellent processing and physical properties

Through component optimization design, the aluminum-molybdenum alloy maintains high strength while still possessing good plasticity and machinability, enabling casting, forging, and mechanical processing. It inherits the thermal and electrical conductivity of aluminum and is suitable for applications such as heat dissipation substrates and conductive structural components.

 

 

 

1. As an intermediate alloy (with high molybdenum content, >50%)

(1) Aerospace and 3D printing: High-purity aluminum-molybdenum alloys (such as AlMo60, AlMo80) are the key intermediate alloys for titanium alloy manufacturing, used in aircraft engine blades, fuselage components, and the preparation of 3D-printed metal powders to ensure uniform material properties.

(2) Grain refiner: Adding a small amount of aluminum-molybdenum alloy during aluminum alloy casting can refine the grain structure, eliminate columnar crystals and cracks, and improve the mechanical properties and yield of the castings, and are widely used in high-end aluminum alloy production.

 

2. As high-performance aluminum alloy (molybdenum content 2% - 30%)

(1) Aerospace and defense: Used for manufacturing high-temperature components of aircraft, missile casings, rocket structural parts and compressor blades of jet engines. Its high strength and heat resistance enable a balance between lightweight and reliability.

(2) Automotive industry: Applied to engine pistons, cylinder heads, turbocharger rotors and other components, enhancing fuel efficiency and power output through high-temperature strength and lightweight characteristics.

(3) Electronics and electrical: As a heat dissipation substrate for high-power LEDs, a heat dissipation sheet for integrated circuits and lead frame materials, leveraging its high thermal conductivity to solve heat dissipation problems.

(4) Chemical and marine engineering: Manufactured for corrosion-resistant valves, pump bodies, heat exchangers and ship components, meeting the requirements for long-term operation in harsh environments.

 

 

 

Item	Specification
Product Name	Molybdenum Aluminum Alloy (Mo-Al Alloy)
Material Type	Mo-based high-temperature alloy / intermetallic compound / composite alloy
Main Composition	Mo: 60%–95% / Al: 5%–40% (adjustable)
Optional Additives	Ti, Si, Nb, B (trace elements for performance optimization)
Density	6.0 – 9.5 g/cm³
Melting Point	1800 – 2600°C (depending on phase composition)
Max Working Temperature	Up to 1500 – 1600°C (in controlled atmosphere)
Thermal Conductivity	Medium to High
Electrical Conductivity	Medium
Oxidation Resistance	Improved vs pure molybdenum (Al₂O₃ protective layer formation)
Mechanical Strength	High strength at elevated temperatures (>1200°C stability)
Creep Resistance	Excellent
Corrosion Resistance	Good resistance to high-temperature oxidizing gases
Formability	Moderate (requires powder metallurgy or advanced processing)
Processing Methods	Powder metallurgy, vacuum sintering, HIP, mechanical alloying
Product Forms	Sheet, plate, rod, block, custom machined parts
Thickness Range	0.1 – 50 mm (sheet/plate forms)
Surface Finish	Rolled, ground, polished, machined
Dimensional Tolerance	±0.01 – ±0.1 mm (precision grade available)
Application Temperature Environment	Vacuum / inert / controlled oxidizing atmosphere
Key Advantages	High-temperature strength, improved oxidation resistance, lighter than pure Mo, enhanced structural stability

 

 

 

 

 

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