Characterization of a new beta titanium alloy, Ti–12Mo–3Nb, for biomedical applications

Precipitation hardening and microstructure evolution of the Ti–7Nb–10Mo alloy during aging

“…β-Ti alloys with low modulus usually have B o = 2.75-2.85, M d = 2.35-2.45 [6] and e/a = 4.20-4.24 [7]. Following these results, a series of β type alloys with low modulus have been developed, such as Ti-4.4Ta-1.9Nb [8], Ti-13Mo-7Zr-3Fe [3], Ti-12Mo-3Nb [9], Ti-13Nb-13Zr [10], Ti-29Nb-13Ta-4.6Zr [11], Ti-25Nb-10Ta-1Zr-0.2Fe [12], Ti-35Nb-7Zr-5Ta [13] and gum metal Ti-12Ta-9Nb-3V-6Zr-1.5O [14,15]. And the B o , M d , and e/a values of these β type alloys fall in the ranges of 2.79-2.88, 2.39-2.48 and 4.02-4.26, respectively.…”

Influence of Si addition on the microstructure and mechanical properties of Ti–35Nb alloy for applications in orthopedic implants

“…However, the titanium alloys currently in use also exhibit a high elastic modulus (110 GPa) in comparison to that of the human bone elastic modulus (10-30 GPa), fact that may cause the stress-shielding phenomenon and result in the premature failure of the implant; This factor, in turn, is considered to be a major cause of revision surgeries (Zhou and Luo, 2011;Zhou and Niinomi, 2009;Zhentao and Lian, 2006;Hao et al, 2006). As a result, during the last decades, increasing attention has been given to the development of new type-ȕ titanium alloys, they are assumed to be possible substitutes for the most widely used alloy in orthopedic applications -Ti-6Al-4V alloy (Niinomi et al, 2012;Gabriel et al, 2012;Kim et al, 2006a;Guo et al, 2010;Lopes et al, 2011). In this context, Nb addition to titanium alloys has become common because of its biological passivity and capability to reduce the elastic modulus (Lopes et al, 2011;Cremasco et al, 2011;Afonso et al, 2007).…”

Microstructure and mechanical properties of as-cast Ti-Mo-xCr alloy for biomedical application

“…Additionally, the preferred titanium alloy for biomedical applications should have low young's modulus to overcome critical issue stress shielding [4] . Recently, number studies focused to develop low young's modulus Ti alloy with non-toxic elements such as Mo, Nb, Sn, and Ta [4][5][6][7].…”