Department of Mechanical Engineering, Indian Institute of Technology (BHU) Varanasi, Varanasi, 221005, India.
Department of Metallurgical Engineering, Indian Institute of Technology (BHU) Varanasi, Varanasi, 221005, India.
Biomed Mater. 2022 Jun 21;17(4). doi: 10.1088/1748-605X/ac7763.
Titanium-based biomedical alloys are susceptible as they are used as a substitute for human bone. In this study, titanium alloy, Ti-5Cu-%Nb (= 0, 5, 10, 15) (%wt) was developed by powder metallurgy route. The effect of alloying niobium with Ti-5Cu alloy and its effect on the microstructure, mechanical strength, corrosion resistance, and antibacterial properties have been evaluated. The results show that the sintered alloy has both-Ti and TiCu phases. With increasing niobium content in the alloy,-Ti was also detected. Additionally, it was found that the micro-hardness and compressive strength of the studied alloy was better than commercially pure titanium (cpTi), while the Young's modulus was lower than cpTi. These properties are highly favorable for using this alloy to replicate the human cortical bone. The alloy was also tested for anticorrosive property in Ringer's solution. The antibacterial activity was also examined forandbacteria. The alloy showed promising anticorrosive and antibacterial ability.
钛基生物医学合金因其可用作人体骨骼的替代品而备受关注。本研究采用粉末冶金法制备了钛合金 Ti-5Cu-%Nb（=0、5、10、15）（wt%）。研究了铌对 Ti-5Cu 合金的影响及其对微观结构、力学性能、耐腐蚀性和抗菌性能的影响。结果表明，烧结合金中存在-Ti 和 TiCu 相。随着合金中铌含量的增加，也检测到了-Ti。此外，研究发现，所研究合金的显微硬度和抗压强度优于工业纯钛（cpTi），而杨氏模量低于 cpTi。这些性能非常有利于用这种合金来替代人类皮质骨。还对合金在林格氏溶液中的耐腐蚀性进行了测试。并对和细菌进行了抗菌活性测试。该合金表现出良好的耐腐蚀性和抗菌能力。
