A kind of tough and corrosion-resistant titanium alloy and preparation method thereof
A titanium alloy and corrosion-resistant technology, which is applied in the field of strong, tough, corrosion-resistant titanium alloys and their preparation, can solve the problems that the strength, toughness and corrosion resistance of titanium alloys are difficult to meet the industrial service standards, the wide application is limited, and the process is cumbersome, etc. The effect of strength improvement, grain refinement strengthening, and corrosion resistance improvement
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[0035] The present invention also provides a method for preparing the strong and corrosion-resistant titanium alloy described in the above technical solution, comprising the following steps:
[0036] (1) Obtain the as-cast alloy billet after melting the alloy raw material;
[0037] (2) deforming the as-cast alloy billet obtained in the step (1) after heat preservation treatment to obtain a densified alloy billet;
[0038] (3) performing solution treatment on the densified alloy blank obtained in the step (2) to obtain a strong, tough and corrosion-resistant titanium alloy.
[0039]In the invention, the alloy raw material is smelted to obtain the cast alloy billet. In the present invention, there is no special limitation on the type of the alloy raw material, and the alloy raw material well-known to those skilled in the art is used to obtain the titanium alloy with the target composition. In the present invention, the alloy raw materials preferably include sponge titanium, sp...
Embodiment 1
[0053] According to the alloy composition Ti-10Zr-6Al-4V-0.1Ru (mass percentage) ingredients, weigh 89.9g of industrial-grade titanium sponge, 10g of zirconium sponge, 6g of pure aluminum, 4g of pure vanadium, soak in absolute ethanol, and mix after ultrasonic cleaning. Put high-purity Ru0.1g, carry out air-drying, put in the water-cooled copper crucible of non-consumable vacuum arc melting furnace, the vacuum degree in the furnace chamber will be pumped to 8×10 -3 Below Pa, after filling high-purity argon gas as a protective gas (vacuum degree is 0.04-0.05MPa) before arc melting, the arc temperature is about 3000°C during each melting, and the melting time is about 2 minutes each time. After the smelting is completed, the ingot is cooled to obtain the ingot, and then the ingot is turned over for smelting, so that the smelting-casting ingot is repeatedly smelted and turned over 5 times to ensure that the finally obtained ingot has a uniform composition.
[0054] Then heat the ...
Embodiment 2
[0056] According to the alloy composition Ti-20Zr-6Al-4V-0.1Ru (mass percentage) ingredients, weigh 68.839g of industrial-grade titanium sponge, 20.035g of zirconium sponge, 6g of pure aluminum wire, and 4g of high-purity vanadium. After cleaning, add 0.1g of high-purity Ru, air-dry, and put it into a water-cooled copper crucible in a non-consumable vacuum arc melting furnace. The vacuum degree in the furnace cavity should be pumped to 8×10 -3 Below Pa, after filling high-purity argon as protective gas (vacuum degree 0.04-0.05MPa) before arc smelting, the arc temperature is about 2900°C during each smelting, and the smelting time is about 2 minutes, and each smelting is completed After cooling, the ingot is obtained, and then the ingot is turned over for smelting, so that the smelting-casting ingot is repeatedly smelted and turned over 7 times to ensure that the finally obtained ingot has a uniform composition.
[0057] Then heat the alloy ingot taken out to the rolling temper...
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