Tungsten copper rod corrosion resistance is one of significant properties to evaluate tungsten copper products. It mainly refers to the chemical stability and depends on components, chemical properties and morphology.
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- Improve the thermodynamic stability of tungsten copper alloy (increase electrode potential);
- Reduce the anode activity:
- Reduce the alloy cathode active phase of adaptation cathode control corrosion, non-passivated metal:
- Form the dense amorphous protective film on the surface of alloy, such as add Cu, P and alloy elements in steel.