The manufacturing process of molybdenum-zirconium-titanium alloy is as follows:
1. Arc melting-casting method: First, pure molybdenum is melted by arc, and then a certain amount of titanium, zirconium and other alloy elements are added according to the weight percentage, and finally the product is processed by conventional casting method.
2. Powder metallurgy method: high-purity molybdenum powder is evenly mixed with TiH2 powder, ZrH2 powder and graphite powder in proportion, and then cold isostatic pressing is performed, and then high-temperature sintering is performed under protective atmosphere to obtain TZM billet.
3. The billet is then subjected to high-temperature hot rolling (high-temperature forging), high-temperature annealing, medium-temperature hot rolling (medium-temperature forging), medium-temperature annealing to eliminate stress, and then warm rolling (warm forging) to obtain TZM finished material.