A biomedical high-strength and toughness Ti-6Al-4V titanium alloy rod and preparation method thereof
A high-strength toughness, biomedical technology, applied in the preparation of the above-mentioned titanium alloy rods, the field of biomedical high-strength and toughness Ti-6Al-4V titanium alloy rods, can solve the problems of low plasticity, low hardness, etc., to improve production efficiency, Good consistency of mechanical properties
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[0021] A kind of preparation method of biomedical high-strength toughness Ti-6Al-4V titanium alloy bar of the present invention, concrete implementation steps are as follows:
[0022] Step 1: Preparation of ingot: Sponge titanium, aluminum vanadium alloy, and aluminum beans are used as raw materials, according to the content range of each element: Al6.0% ~ 6.3%, V 4.0% ~ 4.3%, O 0.16% ~ 0.18%, Fe 0.18% to 0.25%, Ti 88.97% to 89.66% to calculate the ingredients, weigh the above raw materials and mix them, and then use a 3500t oil press to press them into electrode blocks, and then use a vacuum consumable arc melting furnace to prepare a diameter of 460mm ingot, made ingot;
[0023] Step 2: Forging and elongating into billets: the ingots obtained in step 1 are subjected to billet forging and elongating processes in a gas furnace, and multiple fires are used to reversing pier drawing. The heating temperature is 1050-1150 ° C, and the heat preservation The time is 200-240min, so ...
Embodiment 1
[0028] Preparation of ingot: Preparation of ingot: use sponge titanium, aluminum vanadium alloy, and aluminum beans as raw materials, and calculate the ingredients according to the content range of each element: Al 6.0%, V 4.0%, O 0.16%, Fe 0.18%, and Ti 88.97% , and the above raw materials were weighed and mixed respectively, and then pressed into an electrode block by using a 3500t hydraulic press, and then used in a vacuum consumable arc melting furnace to prepare an ingot with a diameter of 460mm through three meltings to obtain an ingot; the obtained ingot The billet forging and elongation process is carried out with a gas furnace, and the multi-fire reversing piercing is adopted. The heating temperature is 1050°C and the holding time is 200min, so that the diameter of the ingot is reduced to 200mm; then the elongation process is carried out once. The heating temperature is 1000°C, the final forging temperature is 900°C, and the holding time is 200min, and a billet with a ...
Embodiment 2
[0030]Preparation of ingot: Preparation of ingot: use titanium sponge, aluminum vanadium alloy, and aluminum beans as raw materials, and calculate the ingredients according to the content range of each element: Al 6.2%, V 4.2%, O 0.17%, Fe 0.22%, and Ti 89.21% , and the above raw materials were weighed and mixed respectively, and then pressed into an electrode block by using a 3500t hydraulic press, and then used in a vacuum consumable arc melting furnace to prepare an ingot with a diameter of 460mm through three meltings to obtain an ingot; the obtained ingot The billet forging and elongation process is carried out with a gas furnace, and the multi-fire reversing pier drawing is adopted. The heating temperature is 1100°C and the holding time is 220min, so that the diameter of the ingot is reduced to 210mm; then the elongation process is carried out once, The heating temperature is 1025°C, the final forging temperature is 925°C, and the holding time is 200min, and a billet with...
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