Corrosion behaviour of β-Ti20Mo alloy in artificial saliva

Abstract

To evaluate the potential of β-Ti20Mo alloy as a dental material, we tested its corrosion behaviour in artificial saliva in comparison to that of cp-Ti. Open-circuit potential (E(OC)), potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) were used as electrochemical methods to characterize the corrosion behaviour of Ti20Mo alloy and cp-Ti, respectively. Corrosion current and passive current densities obtained from the polarization curves showed low values indicating a typical passive behaviour for Ti20Mo alloy. The EIS technique enabled us to study the nature of the passive film formed on the binary Ti20Mo alloy at various imposed potentials. The Bode phase spectra obtained for Ti20Mo alloy in artificial saliva exhibited two-time constants at higher potential (0.5 V, 1.0 V), indicating a two-layer structure. According to our experimental measurements, Ti20Mo alloy appears to possess superior corrosion resistance to that of cp-Ti in artificial saliva.

Attachment of Porphyromonas gingivalis to Corroded Commercially Pure Titanium and Titanium‐Aluminum‐Vanadium Alloy

“…41 Additionally, several studies have incorporated different metals such as copper (Cu), gold (Au), molybdenum (Mo), niobium (Nb), palladium (Pd), platinum (Pt), tantalum (Ta), and zirconium (Zr) to improve the corrosion resistance of Ti alloys. [42][43][44][45] Future studies focusing on the bacterial attachments of such alloys are warranted. P. gingivalis, a periodontal pathogen, was chosen for this in vitro study because of its common association with peri-implantitis.…”

Investigation of processing effects on the corrosion resistance of Ti20Mo alloy in saline solutions

“…Moreover, alloying titanium with Mo β-stabilizers improves the corrosion resistance [4][5][6][7][8][9][10], in addition to adequate mechanical compatibility and good cytocompatibility [11][12][13][14][15][16] despite one controversial report [17]. Unfortunately, titanium and molybdenum are difficult to alloy through a conventional melting-casting process due to the big difference in melting point and specific gravity between the two metals.…”

Influence of Adhesive on Shear Bond Strength Between Denture Base Materials and Self-Cured Silicon Soft Liner

“…The artificial saliva composition used in this study conformed to that described by Fusayama et al [13][14][15][16][17] and the recipe is presented in Table 2. The chemical reagents were added to the solutions in the order they are listed.…”