
Journal of Functional Biomaterials, Journal Year: 2025, Volume and Issue: 16(4), P. 126 - 126
Published: April 2, 2025
Hip joint implants are among the most prevalent types of medical utilized for replacement damaged joints. The utilization modern implant materials, such as cobalt–chromium alloys, stainless steel, titanium, and other titanium is accompanied by challenges, including toxicity certain elements (e.g., aluminum, vanadium, nickel) excessive Young’s modulus, which adversely impact biomechanical compatibility. A mismatch between stiffness material bone tissue, known stress shielding, can lead to adverse outcomes resorption loosening. Recent studies have shifted focus β-titanium alloys due their exceptional biocompatibility, corrosion resistance, low close modulus tissue (10–30 GPa). In this study, microstructure, mechanical properties, phase stability Ti-38Zr-11Nb alloy were investigated. Energy dispersion spectrometry was employed confirm homogeneous distribution Ti, Zr, Nb in alloy. subsequent microstructural analysis revealed presence elongated β-grains rolling quenching. Furthermore, grinding contributed process recrystallization formation subgrains. X-ray diffraction confirmed a stable β-phase under any heat treatment conditions, be explained use β-stabilizer Zr neutral element with weak β-stabilizing effect β-stabilizers. elasticity, determined tensile testing, exhibited decline from 85 GPa 81 after annealing. Mechanical tests demonstrated substantial enhancement strength (from 529 MPa 628 MPa) concurrent 32% reduction elongation fracture samples. These alterations attributed transformations, subgrains rearrangement dislocations. This study’s findings suggest that has potential choice its lower compared traditional materials β-phase, enhances implant’s durability reduces risk brittle phases forming over time. study demonstrates resistance grade 2 comparable. question no evidence cytotoxic activity context mammalian cells.
Language: Английский