Metastable beta type Ti-Nb-Ta-Zr-O alloy and preparation method thereof
A ti-nb-ta-zr-o, alloy technology, applied in the field of medical devices, can solve the problems of low tensile strength, application limitation, low elastic modulus, etc., and achieves low work hardening rate, good processing performance, cold working good performance
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[0027] Example 1
[0028] The alloy is prepared by using sponge titanium, titanium-niobium master alloy, zirconium block and titanium dioxide as raw materials. The design masses of each component are: titanium (Ti) 11.5 kg, niobium (Nb) 7.7 kg, zirconium (Zr) 0.8 kg, titanium White powder (TiO 2 ) 0.8 kg. The raw materials are pressed into electrodes and smelted in a vacuum consumable arc furnace; the alloy ingots are Hot-roll forming with a deformation of 60% was carried out, and then After 0.5h of vacuum solution treatment, the solution is cooled with brine, and finally cold-rolled at room temperature with a deformation amount of 90% to form a plate to prepare the alloy of the present invention. The measured tensile properties at room temperature are: R m =890MPa, R p0.2 =1230Mpa, A e =1.8%, A=13%, E=48Gpa.
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[0029] Example 2
[0030] The alloy is prepared by using sponge titanium, titanium-niobium master alloy, zirconium block and titanium dioxide as raw materials. The design masses of each component are: titanium (Ti) 11.5 kg, niobium (Nb) 7.7 kg, zirconium (Zr) 0.8 kg, titanium White powder (TiO 2 ) 0.2 kg. The raw materials are pressed into electrodes and smelted in a vacuum consumable arc furnace; the alloy ingots are Hot-roll forming with a deformation of 90% was carried out, and then After 1 hour of vacuum solid solution treatment, water cooling is performed, and finally cold rolling is performed at room temperature with a deformation amount of 50% to form a plate to prepare the alloy of the present invention. The measured tensile properties at room temperature are: R m =830MPa, R p0.2 =1130Mpa, A e =1.9%, A=16%, E=45Gpa.
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[0031] Example 3
[0032] The alloy is prepared by using sponge titanium, titanium-niobium master alloy, tantalum-zirconium master alloy, zirconium block and titanium dioxide as raw materials. The design masses of each component are: titanium (Ti) 11.5 kg, niobium (Nb) 7.2 kg, tantalum (Ta ) 0.4 kg, zirconium (Zr) 0.6 kg, titanium dioxide (TiO 2 ) 0.3 kg. The raw materials are pressed into electrodes and smelted in a vacuum consumable arc furnace; the alloy ingots are Hot-draw forming with a deformation amount of 75%, and then After 1 hour of vacuum solution treatment, water cooling, and finally cold drawing at room temperature with a deformation amount of 70% is performed to form a wire rod to prepare the alloy of the present invention. The measured tensile properties at room temperature are: R m =850MPa, R p0.2 =1150Mpa, A e = 2.2%, A = 17%, E = 43 Gpa.
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