Improvement of bio-corrosion resistance for Ti42Zr40Si15Ta3 metallic glasses in simulated body fluid by annealing within supercooled liquid region

Review on the Research and Development of Ti-Based Bulk Metallic Glasses

“…In this sense, Ti-based BMGs for biomedical use should only contain biocompatible and low-modulus elements. According to this principle, a series of Ti-Zr-Si-(Nb, Ta) metallic glasses that contain no harmful elements has been successfully developed [226,227]. However, the GFA of this class of Ti-based alloys is too poor to form BMG samples.…”

Corrosion Resistance and Electrocatalytic Properties of Metallic Glasses

“…Zr 56 Al 16 Co 28 metallic glass exhibits a decrease of passivation potential and an increasing of penetration rate with increasing heating temperature in Ringer's simulated body fluid at room temperature [33]. The corrosion parameters of some metallic glasses are summarized in the Table 1 [34][35][36][37][38][39]. It can be attained that the corrosion resistance of most metallic glasses after crystallized will decrease, as shown that the corrosion potential decreases and the corrosion current density increases relatively, suggesting that the passive films formed on the surface of the glassy alloy in the anodic process are protective and denser than those on the crystal alloys.…”

EFFECT OF THERMAL OXIDATION ON THE CORROSION RESISTANCE OF CP-Ti

“…However, they are of poor wear resistance and poor corrosion resistance in reducing acid, which limits their practical application in some fields [6][7][8][9][10]. In recent years, a lot of surface modification methods have been used to improve surface properties [11][12][13] (i.e., hardness and wear) of Ti based alloys, such as electroplating, ion implantation, laser surface treatment, carburizing, carbonitriding, thermal oxidation, etc [14][15][16].Among those, thermal oxidation is an easiest and most environmental friendly technique that can be used to harden the surface of titanium and its alloys [17][18], and thus improve their poor wear and corrosion properties, due to the formation of a crystalline rutile oxide film on the surface [19][20][21]. The aim of this research is to determine the suitable thermal oxidation condition of CP-Ti to get the optimum corrosion resistance in HCl, and it is found oxidizing at 700℃ for 330min～500min is appropriate condition.…”