Low-cast and superplasticity titanium alloy
A technology of superplasticity and titanium alloy, which is applied in the field of low-cost superplastic titanium alloy, can solve the problems of restricting the wide application of titanium alloy, difficulty in processing titanium alloy, and high cost of titanium alloy products, so as to reduce processing cost, facilitate plastic deformation, reduce The effect of raw material costs
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[0007] Example 1
[0008] According to the nominal alloy ingredients, the ingot is prepared by smelting twice in a vacuum consumable electric arc furnace. The weight percentage composition of the alloy is: aluminum is 3.2%, vanadium is 2.0%, molybdenum is 3.0%, iron is 2.0%, and chromium is 1.0%, the balance is titanium and unavoidable impurities. After forging, the alloy is processed into bars with a diameter Φ of 25mm. After 850℃ / 1h, WQ+510℃ / 8h, AC system heat treatment, the room temperature tensile performance is: tensile strength σ b =1010MPa, the yield strength σ 0.2 =970MPa, elongation δ=21%, reduction of area Ψ=59%. At a temperature of 850°C and a stretching speed of 2 mm / min, the elongation δ is 1000%.
Example Embodiment
[0009] Example 2
[0010] According to the nominal alloy ingredients, the ingot is prepared by smelting twice in a vacuum consumable electric arc furnace. The weight percentage composition of the alloy is: aluminum is 4.5%, vanadium is 3.0%, molybdenum is 2.0%, iron is 1.0%, and chromium is 1.0%, the balance is titanium and unavoidable impurities. After forging, the alloy is processed into bars with a diameter Φ of 25mm. After 850℃ / 1h, WQ+510℃ / 8h, AC system heat treatment, the room temperature tensile performance is: tensile strength σ b =1030MPa, yield strength σ 0.2 =980MPa, elongation δ=19%, reduction of area Ψ=56%. At a temperature of 850°C and a stretching speed of 2 mm / min, the elongation δ is 1000%.
Example Embodiment
[0011] Example 3
[0012] According to the nominal alloy ingredients, the ingot is prepared by smelting twice in a vacuum consumable electric arc furnace. The weight percentage composition of the alloy is: aluminum is 5.5%, vanadium is 3.5%, molybdenum is 2.5%, iron is 1.5%, and chromium is 1.5%, the balance is titanium and unavoidable impurities. After forging, the alloy is processed into bars with a diameter Φ of 25mm. After 850℃ / 1h, WQ+510℃ / 8h, AC system heat treatment, the room temperature tensile performance is: tensile strength σ b =1100MPa, yield strength σ 0.2 =990MPa, elongation δ = 15%, reduction of area Ψ = 50%. At a temperature of 850°C and a stretching speed of 2 mm / min, the elongation δ is 1000%.
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