The aviation titanium rod method uses consumable electrodes for electroslag melting in non active slag (), which can be directly cast into ingots of the same shape and has good surface quality, suitable for direct processing in the next process. T (Ti-6AL-4v) titanium alloy is an early developed and widely used titanium alloy in the world. Its production accounts for over half of the world's total production of titanium alloy semi-finished products, exceeding 80% in the aviation industry. AL enhances the room temperature strength and thermal strength of the alloy through solid solution strengthening of phase A, while V improves both toughness and plasticity. V can also inhibit the formation of a2 superstructure phase and avoid alloy u and embrittlement during long-term use.
The main characteristics of T titanium alloy are excellent comprehensive properties and good process characteristics. It also has excellent superplasticity, suitable for forming using pressure processing methods and welding using methods.
When the requirements for the plasticity and durability strength indicators of the deformed metal are not too high, the forging shape is relatively simple. Hammer forging is preferred. but β Hammer forging is not suitable for alloys, as multiple heating during the die forging process can have a beneficial impact on mechanical properties.
The main semi-finished forms of T titanium alloy are bars, forgings, thin plates, thick plates, profiles, and wires. This alloy is mainly used in the annealed state, and solid solution aging strengthening can also be used. However, the quenching section does not exceed 25-30mm, and solid solution aging strengthening is not suitable for thick and large workpieces. At present, many modifications of Ti-6Al-4V titanium alloys have emerged in various countries for different usage conditions and process requirements. The main differences are different AL. V content and relatively low interstitial element impurity content, as well as Ti-6Al-4V alloys with trace amounts of Re added.
