Current developments of biomedical porous Ti–Mo alloys

Abstract

Current developments of biomedical porous Ti-Mo alloysAs a biomedical hard tissue implant candidate, porous Ti-Mo alloy has received considerable attention because of its special porous structure, appropriate Young's modulus and compressive strength as well as good corrosion resistance. As a bioactive coating, hydroxyapatite is commonly used to cover the surface of bioinert metallic prostheses due to its excellent biocompatibility, bone-like structure and composition. This article reviews the current developments and the relationships between the fabrication methods, porous structure, mechanical properties, bioactive surface modification and corrosion behavior of porous Ti-Mo alloy used for hard tissue implant application. Furthermore, the future research directions are discussed to optimize the porous structure and improve the properties of porous Ti-Mo alloys.

Mechanical Characterization and In Vitro Assay of Biocompatible Titanium Alloys

“…While blood contact implants with minimal interaction are normally required for implants that remain in contact with blood, osseointegrated implants must have strong interaction in order to obtain a high adhesion force. Osteointegration can be influenced by both the structure and topography of the surface and its composition [ 9 , 10 ].…”

Microstructure and Compressive Properties of Cellular Ti-Mo-based Alloys for Hard Tissue Prostheses

“…Vanadium may result in some toxic effects like hematological reactions [1,2]. Recent reports reveal that Mo, Nb, Ta, Zr, and Sn belong to biocompatible alloying elements without or with much lower cytotoxicity [1,2,[4][5][6][7][8]. Accordingly, novel kinds of biomedical near β Ti alloys possessing smaller YM have been studied by selecting the above-mentioned alloying elements.…”

Design, Synthesis, and Preliminary Evaluation for Ti-Mo-Zr-Ta-Si Alloys for Potential Implant Applications

“…One of the promising alloying elements is Mo, especially for good biocompatibility, corrosion resistance and metallurgical effects, to which is added a low manufacturing cost comparatively with other alloying elements. Increasing the Mo content reduces the transition temperature of the β phase, decreases the elastic modulus and balances the pH in the body [22,23]. Recent research has shown that the use of about 18 wt.% Zr and 13 wt.% Mo as alloying elements for titanium has led to high values for yield stress and good ductility.…”