Preparation method of hydrogen-containing titanium alloy wire for additive manufacturing
A titanium alloy wire and additive manufacturing technology, applied in the field of titanium alloys, can solve the problems of difficult processing, poor forming performance, and reduce manufacturing costs, and achieve the effects of improving internal structure, optimizing hot forming performance, and reducing manufacturing costs.
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[0035] combine figure 1 As shown, the present invention provides a method for preparing a hydrogen-containing titanium alloy wire for additive manufacturing, comprising:
[0036] Step 1. Homogenize and heat treat the titanium alloy ingot. The titanium alloy ingot can be a titanium alloy bar with a certain length and diameter or a titanium alloy ingot in other shapes, including but not limited to a rectangle;
[0037] Step 2. Put the titanium alloy ingot into a closed tubular hydrogen heating furnace, and in a vacuum environment, pass hydrogen into the solid state hydrogenation treatment to obtain the hydrogenated titanium alloy ingot;
[0038] Step 3. Put the hydrogenated titanium alloy ingot into the heat treatment furnace for solution treatment;
[0039] Step 4, subjecting the solution-treated titanium alloy ingot to a hot drawing process with a preset deformation amount, and furnace cooling is completed after drawing to obtain a titanium alloy wire; and
[0040] Step 5, s...
Embodiment 1
[0059] [Implementation 1] Adopt the process of "hydrogen setting + solid solution + drawing at room temperature + aging"
[0060] 1) The TC4 titanium alloy ingot is subjected to hydrogen treatment, specifically, the TC4 titanium alloy ingot is placed in a tubular hydrogen furnace, and the vacuum is evacuated to 1.5*10 -3 Pa, heated to 700°C-800°C at a rate of 10-20°C / min, holding time for 10-30min, filled with 0.8% hydrogen according to the weight percentage of the titanium alloy ingot, kept for 2h, and then heated at 5-15°C / min. min cooled to room temperature to obtain a hydrogen-containing titanium alloy ingot; such as image 3 shown;
[0061] 2) Carry out solution treatment to the above-mentioned hydrogenated titanium alloy ingot, put the titanium alloy ingot into the heat treatment furnace, and heat it to T at a speed of 10-20°C / min. β ℃+10℃, hold for 20min~40min, then quench and cool to room temperature;
[0062] 3) The hydrogenated titanium alloy ingot is peeled to re...
Embodiment 2
[0065] [Implementation 2] The process of "hydrogen setting + solid solution + hot drawing + aging" is adopted
[0066] 1) The TC4 titanium alloy ingot is peeled to remove surface cracks and folds, one end is rounded, and the hydrogen treatment is carried out. Specifically, the TC4 titanium alloy ingot is placed in a tubular hydrogen furnace, and the vacuum is evacuated to 1.5*10 -3 Pa, heated to 700°C-800°C at a rate of 10-20°C / min, holding time for 10-30min, filled with 0.8% hydrogen according to the weight percentage of the titanium alloy ingot, kept for 2h, and then heated at 5-15°C / min. min cooled to room temperature to obtain a hydrogen-containing titanium alloy ingot;
[0067] 2) Carry out solution treatment to the above-mentioned hydrogenated titanium alloy ingot, put the titanium alloy ingot into the heat treatment furnace, and heat it to T at a speed of 10-20°C / min. β ℃+10℃, hold for 20min~40min, then quench;
[0068] 3) Put the hydrogenated titanium alloy ingot in ...
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