Effect of Si Contents on the Properties of Ti15Mo7ZrxSi Alloys

The main purpose of this research is to evaluate the mechanical characteristics and biocompatibility of two novel titanium alloys, Ti15Mo7ZrxSi (x = 0, 0.5, 0.75, 1). These samples had already undergone grinding, polishing, cutting, and chipping. Electrochemical, metallographic, three-point bending,...

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Bibliographic Details
Published in:Materials 2023-07, Vol.16 (14), p.4906
Main Authors: Jimenez-Marcos, Cristina, Mirza-Rosca, Julia Claudia, Baltatu, Madalina Simona, Vizureanu, Petrica
Format: Article
Language:English
Subjects:
Ambient temperature
Analysis
Biocompatibility
Biomedical materials
Bone surgery
Chipping
Corrosion and anti-corrosives
Corrosion potential
Corrosion rate
Corrosion resistance
Dendritic structure
Ductility
Electrodes
Hardness
Mechanical properties
Microhardness
Modulus of elasticity
Molybdenum
Physiological aspects
Silicon
Specialty metals industry
Spectrum analysis
Surgical implants
Titanium
Titanium alloys
Titanium base alloys
Transplants & implants
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Summary:The main purpose of this research is to evaluate the mechanical characteristics and biocompatibility of two novel titanium alloys, Ti15Mo7ZrxSi (x = 0, 0.5, 0.75, 1). These samples had already undergone grinding, polishing, cutting, and chipping. Electrochemical, metallographic, three-point bending, and microhardness studies were conducted on the studied materials to determine their corrosion behavior, microstructure, Young's modulus, and hardness. The first investigations revealed that both samples had biphasic and dendritic structures, elastic moduli that were between the highest and minimum values achieved by around 20 GPa, and favorable behavior when in contact with physiological fluids at ambient temperature. Ti15Mo7Zr0.5Si and Ti15Mo7Zr0.75Si, the research samples, had greater corrosion potentials, reduced corrosion rates, and therefore higher corrosion resistance, as well as modulus of elasticity values that were comparable to and closer to those of human bone. The results of this investigation indicate that both alloys exhibit favorable corrosion behavior, great biocompatibility, Young's modulus results lower than those of conventional alloys used in biomedical implants, and hardness values higher than commercially pure titanium.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma16144906