Titanium-Zirconium-Molybdenum Alloy

Titanium-Zirconium-Molybdenum alloy, commonly referred to as TZM, is a high-performance molybdenum-based alloy containing small amounts of titanium (typically 0.5%), zirconium (about 0.08%), and carbon (around 0.02% to 0.03%). These alloying elements are carefully added to improve the mechanical properties and high-temperature performance of molybdenum, making TZM one of the most widely used high-temperature molybdenum alloys.

Classification:

Product Series

E-mail:

monfils.chen@mtwkj.com

Contact

Message

introduce

Key Properties
- High Recrystallization Temperature: TZM has a recrystallization temperature around 1400–1500°C, significantly higher than pure molybdenum. This allows it to maintain mechanical strength at elevated temperatures.
- Excellent Creep Resistance: The alloy exhibits outstanding resistance to creep deformation under prolonged high-temperature conditions.
- High Strength and Hardness: TZM has greater tensile strength and hardness compared to pure molybdenum, especially at temperatures above 1000°C.
- Improved Ductility and Toughness: The fine dispersion of carbides (mainly TiC and ZrC) enhances toughness and prevents grain growth at high temperatures.
- Good Machinability: While harder than pure molybdenum, TZM can still be machined using conventional methods with appropriate tooling.
Typical Applications
- Aerospace and Defense: Rocket nozzles, propulsion components, and heat shields requiring high thermal resistance and mechanical strength.
- High-Temperature Furnaces: Heating elements, shielding parts, crucibles, and support structures.
- Die Casting and Metal Processing: TZM is widely used for hot tooling applications, including extrusion dies, forging dies, and casting molds due to its high strength and resistance to thermal fatigue.
- Electronics Industry: Components for high-temperature vacuum and semiconductor manufacturing equipment.
- Nuclear Industry: Structural components that require high strength and radiation resistance in nuclear reactors.
Advantages over Pure Molybdenum
- Higher recrystallization temperature.
- Better creep resistance and high-temperature strength.
- Reduced grain growth, resulting in improved mechanical stability.
- Enhanced wear resistance and durability in extreme environments.
Summary

TZM alloy is a high-strength, high-temperature molybdenum alloy that offers superior performance in demanding applications. Its combination of excellent creep resistance, high-temperature strength, and toughness makes it an ideal choice for aerospace, defense, nuclear, and industrial applications that require reliable operation under extreme conditions.