Preparation of TZM
The common preparation methods of TZM alloy ingot include arc melting casting and powder metallurgy.
Arc melting casting method is to melt pure molybdenum by arc and add a certain amount of alloy elements such as Ti and Zr according to the weight percentage, and then get TZM alloy (molybdenum zirconium titanium alloy) by conventional casting method;
Powder metallurgy has unique chemical composition and mechanical and physical properties, which can not be obtained by traditional melting and casting. The high purity molybdenum powder was uniformly mixed with TiH2 powder, ZrH2 powder and graphite powder in proportion, and then formed by cold isostatic pressing, and then sintered at high temperature in a protective atmosphere to obtain TZM billet. The billet is then hot rolled at high temperature (high temperature forging), annealing at high temperature, hot rolled at medium temperature (medium temperature forging), annealing at medium temperature to eliminate stress, and then warm rolled (warm forging) to get TZM finished material. The rolling (forging) process and subsequent heat treatment of TZM billet have great influence on the properties, anisotropy and texture of the material.
The use of powder metallurgy method can save the vacuum consumable electric arc furnace, large extruder and forging hammer and the corresponding high temperature heating furnace and other large equipment, so that the process is simplified, the production cycle is shortened, the energy consumption is reduced, the production capacity and the rate of finished products are increased, so the cost is greatly reduced.
TZM alloy (molybdenum zirconium titanium alloy) is usually prepared into TZM wire, TZM bars and TZM plates. Powder metallurgy method can save the vacuum consumable electric arc furnace, large extruder and forging hammer and the corresponding high temperature heating furnace and other large equipment, so that the process is simplified, the production cycle is shortened, the consumption is reduced, the production capacity and the yield can be improved, so the cost is greatly reduced.
Mosten alloy produces TZM plates, TZM rods, TZM foils, TZM wires, and processing parts according to customer requirements.
