Ti-13Nb-13Zr
Ti-13Nb-13Zr Overview
Ti-13Nb-13Zr alloy is a near-β type biomedical titanium alloy, developed by the United States in 1994. It is the first low elastic modulus medical titanium alloy officially included in international standards.
Due to the alloy's low elastic modulus (approximately 49-79 GPa, similar to that of human bones), high strength, excellent corrosion resistance and biocompatibility, as well as the absence of harmful elements such as aluminum (Al) and vanadium (V) that are toxic to the human body, it has extensive applications in the medical field.
The common used standard for this alloy is ASTM F1713.
Ti-13Nb-13Zr Chemical Composition
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Ti-13Nb-13Zr Mechanical Properties
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Ti-13Nb-13Zr Physical Properties
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Ti-13Nb-13Zr Application
The Ti-13Nb-13Zr alloy, due to its excellent biocompatibility, low elastic modulus, high strength and corrosion resistance, has broad application prospects in fields such as orthopedic implants, oral restoration, surgical implant devices and craniofacial reconstruction.
Artificial joints: The Ti-13Nb-13Zr alloy is used to manufacture artificial hip joints, knee joints, etc. Its low elastic modulus helps to reduce the "stress shielding effect", and lowers the risk of bone density decline around the implant and the failure of the implant.
Fracture repair: This alloy can be used to manufacture bone plates, bone screws, intramedullary nails and other internal fixation devices for fractures.
Surgical implant devices: The Ti-13Nb-13Zr alloy is utilized in the manufacturing of various surgical implant devices due to its excellent corrosion resistance and biocompatibility, such as spinal fixation systems and cranio-maxillofacial prostheses.
Dental implants: The Ti-13Nb-13Zr alloy is used to manufacture dental implants due to its excellent biocompatibility and mechanical properties, which are suitable for the restoration of teeth after loss.
Dental prosthesis repair: This alloy can be processed through heat treatment to adjust its mechanical properties, and is suitable for manufacturing movable denture frameworks and crowns.
Activity support: After being subjected to 750℃ solid solution treatment (water cooling), the elastic modulus of the alloy drops to 49 GPa, the tensile strength reaches 710 MPa, and the elongation rate is 25%. This meets the requirements for oral activity supports.
Dental crown: After being subjected to a 680℃ solidification (water cooling) process followed by a 460℃ aging (air cooling) treatment, the alloy's tensile strength can reach 982 MPa, the yield strength is 815 MPa, and the elongation rate is 12%. The overall performance is suitable for manufacturing dental crowns.
Craniofacial reconstruction: This alloy can be used for the repair of complex areas such as skull defects and jawbone defects. Due to its excellent biocompatibility and mechanical properties, it can combine well with human tissues.
The complete processing procedure of Ti-13Nb-13Zr can be divided into 5 stages: "melting - ingot casting - hot processing - heat treatment - machining/additive manufacturing". Each step must take into account the requirements of biological implant grade cleanliness, uniform composition and low elastic modulus.
Through the above process chain, semi-finished or finished products of Ti-13Nb-13Zr that meet the mechanical and biological requirements of different implant sites can be obtained. Typical applications include artificial joints, bone plates, dental implants, and personalized porous bone scaffolds.
