Ti Grade 23 alloys sheet: Core material in the field of orthopedic implants
Ti-6Al-4V ELI (Extra Low Interstitial, ultra-low interstitial element) Grade5 alloy plates, due to their outstanding composition characteristics and excellent performance, have become one of the core materials in the field of orthopedic implants and are widely used in the manufacturing of devices such as artificial joints, bone plates, and bone nails. Its unique component optimization and key properties make it perform outstandingly in terms of biocompatibility, mechanical fit, corrosion resistance and fatigue resistance, and can meet the strict requirements of orthopedic implants.
Material properties and application scenarios
The basic components of Ti-6Al-4V ELI alloy plates are titanium (Ti, approximately 90%), aluminum (Al, 6%), and vanadium (V, 4%). Meanwhile, the contents of interstitial elements such as oxygen (O<0.13%) and nitrogen (N<0.05%) are strictly controlled, thereby reducing the brittleness risk of the material. This alloy has excellent biocompatibility, does not release toxic ions, and further enhances safety by reducing impurity content. Its elastic modulus is approximately 110 GPa, close to that of human bone (10-30 GPa), which can effectively reduce the "stress shielding" effect and avoid bone resorption problems caused by excessive modulus in traditional stainless steel or cobalt-chromium alloys. In addition, this alloy hardly corrodes in fluid environments and has extremely excellent fatigue resistance. Its service life under cyclic loads can reach more than 10⁷ times, making it highly suitable for long-term load-bearing orthopedic implant applications.
In the specific applications of orthopedic implants, Ti Grade 23 pieces are widely used in fields such as artificial joints, trauma repair devices and spinal implants. In terms of artificial joints, the femoral shank and acetabular cup of the hip joint, as well as the femoral condyle assembly of the knee joint, are all made of this alloy. Both the hip joint system and the precisely forged femoral condyle assembly of the knee joint take advantage of the excellent properties of ELI alloy, enhancing the durability and biocompatibility of the implant. Ti-6Al-4V ELI alloys sheet is widely used in trauma repair devices such as locking compression bone plates and intramedullary nails. Its locking mechanism and elastic modulus fit can effectively promote fracture healing. In terms of spinal implants, products such as 3D-printed porous intervertebral fusion devices and high-torsional strength pedicle screws, leveraging the high performance of this alloy, offer reliable solutions for the treatment of spinal diseases.
Manufacturing process and surface treatment
The manufacturing process and surface treatment technology of Ti-6Al-4V ELI alloys plate are crucial to its performance and application effect. Precision casting technology is often used to manufacture complex-shaped femoral handles. By controlling the microstructure of the α+β phase, the strength of the material can be significantly enhanced. Additive manufacturing (3D printing) technology, especially laser powder bed melting technology.
Surface modification technology is also a key link in improving the performance of Ti-6Al-4V ELI alloys foil. The micro-arc oxidation technology can generate a TiO2 ceramic layer on the alloy surface, enhancing its wear resistance. Bionic coating technologies, such as depositing hydroxyapatite or strontium-doped coatings, can accelerate bone integration and further enhance the biocompatibility and clinical efficacy of implants. These advanced manufacturing processes and surface treatment technologies have enabled the application of Ti-6Al-4V ELI alloy in the field of orthopedic implants to be more extensive and in-depth, providing strong support for the rehabilitation of patients.
Fortu Tech can produce and process titanium alloys billet, titanium alloys sheet, titanium alloys foil, titanium alloys plate, titanium alloys rod, titanium alloys wire, titanium alloys tubes.