Electrochemical Behavior of SLM Ti–6Al–4V Alloy After Long Time of Immersion in Lactic Acid Environment

Experimental Study of Performance of Ti-6Al-4V Femoral Implants Using Selective Laser Melting (SLM) Methodology

“…Feng et al [12], Zhu et al [13], Lee et al [14], and Wen et al [15] have determined the mechanical properties of Ti-6Al-4V cast alloys and the mechanical properties of Ti-6Al-4V casting alloys in terms of the machining conditions, the addition of Ti-TiB2 nanoparticles, vacuum centrifugation, Ni sandwich method from a single point of view, and the mechanical properties of Ti-6Al-4V casting alloys and the mechanical properties of Ti-6Al-4V casting alloys from a single point of view, in addition to 4V casting alloy's mechanical properties as well as strength. In addition, some scholars have also investigated the properties of Ti-6Al-4V alloys made by the SLM method: Banu et al [16] investigated the chemical properties of SLM Ti alloys in a lactic acid environment and observed that the corrosion resistance rate of Ti alloys by the SLM method was lower than that of wrought alloys; Cheng et al [17] investigated Ti alloys with 0.3 wt.% Zn additions, and concluded they had better impact toughness and stable high-temperature tensile mechanical properties; Ben-Hamu et al [18] investigated the corrosion resistance of Ti-6Al-4V in 0.9 M NaCl solution under EBM and SLM fabrication methods, and the results show that the corrosion resistance of SLM method Ti-6Al-4V alloys is slightly superior to that of the EBM method Ti-6Al-4V in both the XY and XZ planes. In recent years, the corrosion resistance of the SLM method Ti-6Al-4V alloys for medical articles has also been studied: Tamaddon et al [19], Mondal et al [20], and Kutsukake et al [21] investigated the performance of SLM method Ti alloys in the field of implants, and initially confirmed that SLM method Ti-6Al-4V alloys have a certain development potential in the field of medical implants.…”

The Influence of the Tantalum Content on the Main Properties of the TixTa9Nb8Zr2Ag Alloy

“…The high value of the Young modulus of various materials such as 190-210 GPa for stainless steels [6], 220 GPa for Co-Cr alloys [6], and 90-110 for titanium and its alloys [6,7], compared to that of human bone GPa depending on the nature of the bone and the state of health [8,9]) has the effect of taking over the loads by the implant, protecting the bone and causing bone resorption [10,11]. It is recognized that titanium and its alloys have high biocompatibility for medical applications, and the Ti6Al4V alloy with a biphasic structure (α + β) and an elastic modulus value of about 110 GPa are widely used [12], although Al and V have proven to be toxic to the human body. This aspect determines their replacement with non-toxic beta-stabilizer elements such as Mo, Nb, and Ta [13,14], aiming to obtain a structure with a low content of the alpha phase for a low Young modulus simultaneously.…”