Melting point of copper-tungsten alloy: characteristics and influencing factors

The melting point of copper-tungsten alloy is an important physical property that is affected by various factors. Here are some characteristics and influencing factors of the melting point of copper-tungsten alloy:

Alloy properties:
Copper-tungsten alloy is a high melting point and high hardness alloy with excellent wear resistance, corrosion resistance, and good electrical and thermal conductivity.
The melting point is usually higher than that of pure copper and pure tungsten, because the alloying process changes the crystal structure and interatomic interaction of the metal.
Influencing factors:

Additive elements: The additive elements in alloys can significantly affect the melting point. Different additive elements and amounts can have different effects on the melting point. For example, some elements may lower the melting point, while others may raise it.
Melting pretreatment: Pretreatment methods such as heat treatment on the alloy before melting may also affect the melting point. For example, proper heat treatment can reduce the melting point of the alloy, which is beneficial for subsequent processing and forming.
Powder fineness: The powder fineness of the alloy may also affect the melting point. At lower powder fineness, the melting point may increase; at higher powder fineness, the melting point may decrease. This is because changes in powder fineness affect the surface area and interparticle interaction of the alloy.
Temperature: The melting point of alloys increases with increasing temperature. This is because the increase in temperature increases the thermal motion between atoms, weakening the interatomic interaction forces, requiring higher temperatures to disrupt the crystal structure and melt it.
It should be noted that the above factors do not exist independently, but rather influence and restrict each other. Therefore, in practical production and application, the impact of these factors on the melting point needs to be comprehensively considered based on the specific alloy composition, preparation process, and application requirements.

In addition, the melting point of copper-tungsten alloy is also affected by factors such as preparation process, heat treatment conditions, and impurity content. Therefore, in practical applications, these factors need to be strictly controlled to ensure that the alloy has a stable melting point and excellent performance.