Titanium tubes generally exhibit superior resistance against electrochemical corrosions amid seawater for their passive films TiO2. However, hydrogenassisted corrosion (HAC) is actually the Achilles’ heel to titaniummaterials when the temperature exceeds near 70 8C. In this event, severe degradations like quick thinning and leakage were frequently detected on a large number of titanium tubes ex...

Metallic biomaterials in the oral cavity are exposed to many factors such as saliva, bacterial microflora, food, temperature fluctuations, and mechanical forces. Extreme conditions present in the oral cavity affect biomaterial exploitation and significantly reduce its biofunctionality, limiting the time of exploitation stability. We mainly refer to friction, corrosion, and biocorrosion processe...

BACKGROUND Technological advances in wire selection and bracket design have led to improved treatment efficiency and allowed longer time intervals between appliance adjustments. The wires remain in the mouth for a longer duration and are subjected to electrochemical reactions, mechanical forces of mastication and generalized wear. These cause different types of corrosion. This study was done to...

Abstract In a quest for better understanding of the mechanism and contribution(s) fresh (“un-degraded”) degraded CFRP surfaces to galvanic corrosion coupled metals in multi-material assemblies electrochemical behaviour quiescent 50 mM NaCl was studied using techniques. Tests ferricyanide/ferrocyanide redox couple revealed quasi-reversible behaviour. Under cathodic polarization, is active electr...

Carbonation-induced corrosion is usually considered in uniform or generalized corrosion. This true for small laboratory samples but not necessary the case real reinforced concrete structures built with multilayers reinforcement. Multi-layers reinforcement could lead to a galvanic between first de-passivated layer closed surface and deeper layers still passivated. The present paper compares dens...