... on Gibbs free energy changes of the reactions. The developed calculation method was validated by the qualitative agreements between measured and calculated results. In the measured and the calculated results, it was confirmed that the potential difference between Zn and Fe was larger and the corrosion...

..., electrode potential), and geometrical (head radius, clearance) parameters and synovial fluid viscosity affecting hip joint degradation. Moreover, the tribocorrosion approach taken here shows that in vivo degradation is highly dependent on individual patient features and reveals that in vivo characterization...

...A.A. Sagüés; A.N. Sánchez; K. Lau; S.C. Kranc The chloride corrosion threshold of steel in concrete depends not only on concrete and steel properties but also on the potential of the steel while it is still in the passive condition. An innovative model to predict corrosion in reinforced concrete...

... knowledge of their unique potentials is warranted. Further, the difference in characteristic potentials of different RE elements is also of relevance. Herein we have surveyed the elements cerium, erbium, gadolinium, lanthanum, and neodymium in room temperature chloride solutions ranging from 0.01 M to 0.6 M...

...Liu Cao; G.S. Frankel; N. Sridhar It is known that dissolved oxygen promotes stress corrosion cracking (SCC) of carbon steel in fuel-grade ethanol. The effects of oxygen on ethanol SCC were investigated using controlled-potential tests in deaerated simulated fuel-grade ethanol (SFGE...

..., each containing standard boron and lithium additions. First, the dependences of crack growth rates on temperature were measured in low- and high-potential water in the range from 250°C to 360°C. Intergranular morphology was observed for nonsensitized CW316 in both low- and high-potential water. However...

...T.-S. Huang; G.S. Frankel The effects of temper and potential on localized corrosion kinetics of aluminum alloy (AA)7075 (UNS A97075) were studied using the foil penetration technique. Specimens were heat-treated to W, T6, and T7 tempers. Experiments were performed in sodium chloride (NaCl...

... potentials and strain rates. It was found that transgranular SCC occurred in this steel in the two solutions. The influence of strain rate was correlated with electrochemical potential. At a high strain rate, there were fewer cracks visible on the specimen side surface, but SCC occurred at a high cathodic...

... it was exposed to high chloride concentrations (up to ~4.7% of the cement weight) by the end of nine years of testing. The potential of that steel increased following macrocell decoupling, and instances of depassivation were observed 15 days to 75 days after decoupling. The results are contrasted with previous...

...N. Birbilis; L.J. Holloway; M. Forsyth The effect of loss of cathodic protection (CP) on steel in soil is presented for simulated (anodic) telluric currents over and above CP currents. The potential of the steel is intentionally shifted to 0 V vs. silver/silver chloride (Ag/AgCl, saturated) for 20...

...L. Li; A.A. Sagüés The effect of specimen surface area (S), varied by 3 orders of magnitude, on the pitting and repassivation potentials of concrete reinforcing steel specimens in alkaline solutions was determined using the conventional cyclic polarization technique. For most of the conditions...

...) and potential measurements. The integral corrosion rate was found to decrease with successive cycles, thereby demonstrating that the formed corrosion products confers protection to the zinc surface. The corrosion product formed in (NH₄)₂SO₄ solution was less corrosive than...

...Z. Misirlioğlu; A. Aksüt This study focuses on the corrosion of Mo in acidic media (sulfuric acid [H₂SO₄] and hydrochloric acid [HCl]). The effect of the electrode pretreatment was investigated by testing the electrode at different cathodic potentials. The effect of propargyl...

...L. Li; A.A. Sagüés Cyclic polarization (CYP) experiments were performed on reinforcing steel bars of various surface finishes in chloride-containing alkaline solutions (pH 11.6 ~ 13.6). Pitting initiation was observed at potentials below the oxygen evolution potential (E_OE) when...

...F. Mansfeld; C.H. Hsu; Z. Sun; D. Örnek; T.K. Wood A shift of the corrosion potential in the positive direction (“ennoblement”) has been observed for cartridge brass and Al 2024 (UNS A92024) exposed to artificial seawater or Luria Bertani growth medium in the presence of bacteria such as B...

... International 2002 copper-nickel alloys galvanic corrosion localized corrosion marine corrosion potential seawater stainless steel weight loss zero-resistance ammetry High-strength copper-nickel alloys and superduplex stainless steels (SS) are examples of a relatively new generation...

... zinc dust and conductive extender contents. Experimental data refers mainly to electrochemical measurements of corrosion potential and polarization resistance. The authors propose an interpretation of the deterioration with time of the capability of the zinc particles in the paint to provide cathodic...

...) and pH 13.3 (SPS1) and pH 13.6 (SPS2) simulated concrete pore solutions. These solutions were free of chlorides at the beginning of the test to allow the steel specimens to passivate. Then the chloride concentration ([Cl^–]) was increased in several steps. The corrosion potential was monitored...

...W.-T. Tsai; C.-C. Kuoh Corrosion fatigue crack growth (FCG) behavior of alloy 600 (UNS N06600) sensitized at 1,100°C/0.5 h + 700°C/5 h in 0.1 M sodium thiosulfate (Na₂S₂O₃) solution at room temperature under applied anodic potential conditions was investigated using...

...) aqueous solution at 23°C ± 2°C. With the potentiodynamic test, it was only possible to measure the pitting potential (E_pit) of UNS S32404, which was equal to 1,007 mV_SCE ± 31 mV_SCE. On anodic polarization curves of UNS S31500, current oscillations were observed...