| Element | Content（%） |
|---|---|
| Ta | Remaining % |
| C | ≤0.002 |
| O | ≤0.002 |
| N | ≤0.002 |
| H | ≤0.001 |
| Nb | ≤0.5% |
| W | 11.5-13.5 |
Tantalum-12.5% Tungsten alloy is a high-performance refractory metal alloy composed of 87.5% tantalum (Ta) and 12.5% tungsten (W). It combines the excellent corrosion resistance of tantalum with the high-temperature strength of tungsten, making it widely suitable for use in extreme environments.
High-Temperature Strength:
Solid-solution strengthening by tungsten significantly enhances tantalum's high-temperature creep resistance, maintaining structural stability even at temperatures exceeding 1600°C.
Corrosion Resistance:
It retains tantalum's resistance to corrosion by acids (such as aqua regia, hydrochloric acid, and sulfuric acid) and molten metals (such as liquid alkali metals).
Radiation Protection:
Its high density and resistance to neutron irradiation make it suitable as a material for the inner walls of nuclear fusion devices.
| Element | Content（%） |
|---|---|
| Ta | Remaining % |
| C | ≤0.002 |
| O | ≤0.002 |
| N | ≤0.002 |
| H | ≤0.001 |
| Nb | ≤0.5% |
| W | 11.5-13.5 |