Tungsten-Rhenium Alloy Wire Using Profile and Performance

Tungsten-based alloy elements added rhenium, tungsten alloy. The rhenium content of the alloy is typically: 1%, 3%, 5%, 20%, 25% and 26% and so on. Tungsten often bred in the grain interface microcracks, these micro-crack is caused by tungsten broken off an important reason. Tungsten-rhenium alloy is formed in the deformation twinning process easy, thus reducing the stacking fault energy of layers, reduce the grain boundary movement of dislocations impedance, resulting in increased mobility of dislocations promote tungsten solution softened. This phenomenon is called "rhenium plasticizing effect." Tungsten rhenium alloy series, the low concentration of rhenium rhenium plasticizing effect is obvious, rhenium, rhenium concentration is high plasticizing effect decreases.

Tungsten-rhenium alloy wire for tungsten rhenium thermocouples

W-3Re/W-25Re, W-5Re/W-20Re, W-5Re/W-26Re, W/W-26Re, 2: Binding for single crystal sapphire sapphire tungsten rhenium wire or tungsten rhenium alloy wire used Model: W-25Re, 0.5mm diameter

Tungsten-rhenium alloy has a series of excellent properties such as melting point, high strength, high hardness, high ductility, high recrystallization temperature, high resistivity, low vapor pressure, low electron work function, and low ductility brittle transition temperature.

Tungsten-rhenium alloy addition to the above performance, low-rhenium alloy and high-rhenium alloy wire thermocouple into the match, with a high thermoelectric power values. Various types of tungsten rhenium thermocouple thermoelectric power value and temperature relationships.

Sapphire single crystal tungsten rhenium wire binding with commonly used models: W-25Re, 0.5mm diameter.


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