... and aggressive process environments. For this purpose, the model calculates the corrosion rates, corrosion potential and repassivation potential as a function of temperature, alkalinity, pH, partial pressure of gases (including H₂S), and concentrations of various aggressive species. The corrosion...

... in ASTM G16-13, ⁴⁸ using the Kolmogorov-Smirnov goodness-of-fit (K-S GoF) test statistics. ^{50 , 56} Therefore, the results of the K-S GoF tests of corrosion test data compatibility with the statistical distribution models are presented in Figure 2 , for corrosion potential...

...Corrosion potential measurements were performed on two types of CRAs: 2535 (N08535) and S13Cr (S41425). The chemical compositions of the two materials are listed in Table 1 . Table 1 Compositions of the alloys studied (weight percent) Alloy UNS No Ni Fe Cr Mo C Other 2535...

...martensite-based stainless steel for OCTG austenite volume ratio corrosion potential rest potential open-cut potential pitting potential INTRODUCTION This paper reports from the electrochemical point of view that the austenite ratio has little impact on corrosion resistance in higher Cr-added...

...-V-Fe, Al-Fe-Ni-Cu and Al-Si-Ni) systems that were obtained as ingots. Al-V-Fe-Si system had the best combination of high temperature strength and pitting resistance. Rapid Solidification Repassivation Corrosion Potential Ribbons Chloride Artificial Crevice Electrode (ACE) INTRODUCTION Rapidly...

... Corrosion Potential LPR INTRODUCTION The rebars were momentarily removed from the solution before transferring into new solution for the initial two sodium chloride additions. This transfer likely allowed some additional oxygen to reach the rebar surface and interact with the passive layer, than...

... once water leakage occurs. Rebar corrosion reinforced concrete tunnel waterproof membranes corrosion survey cathodic protection corrosion potential chloride profile INTRODUCTION The reinforced concrete tunnels structures located under salt water are generally protected from rebar corrosion using...

... the O₂ concentration was about fifty-fold higher than that of the H₂O₂. The results indicated that the H₂O₂ reduction reaction occurred faster than that of O₂. The electrochemical corrosion potentials (ECPs) in the H₂O₂...

... or mesh. When specified the silver-silver chloride electrode was used as well. The difference in potential between the calomel and the silver-silver chloride electrode is approximately 40 mV. For the long term monitoring, the corrosion potential (E_corr) was measured every 3 minutes...

...Abstract Severe corrosion damage may occur when gas transmission pipelines are exposed, at disbonded coating locations, to groundwaters containing sulfide. This scenario has been investigated in long-term anaerobic experiments in which corrosion was followed by measurement of corrosion potentials...

... specimens were those overprotected. An inverse relationship between corrosion potential and corrosion rate is demonstrated using a linear regression model. A mechanism involving moisture content, soil resistivity and oxygen content is proposed to explain this inverse relationship. Similarly, this mechanism...

... corrosion is governed by the values of the critical potential (E_crit) for crevice corrosion and the corrosion potential (E_corr). If E_crit is higher than E_corr crevice corrosion will not occur. The objective of this work was to explore the effect of the electrolyte...

... of localized corrosion is governed by the values of the critical potential (E_crit) for crevice corrosion and the corrosion potential (E_corr). If by natural evolution E_corr may reach potential values in the order of E_crit, localized corrosion may be expected...

...As a result of this, highly oxidizing conditions were generated by the manganese dioxide deposits on the steel surface. Measurements of the corrosion potential in the waste water showed a steady level of 450-500 mV SCE that was typically reached within 30-60 days after exposing fresh samples...

... liquor such as thiosulfates and polysulfides are known to accelerate the corrosion of mild steel [ 5 ]. Wensley et al., have reported that increasing the amount of polysulfides caused an increase in the corrosion potential of mild steel in white liquor [ 6 ]. This could either lead to accelerated active...

... of grade / heat of stainless steel, martensite content or H₂ fugacity / permeation rate was observed, while large effects were observed for yield strength (cold work), stress intensity factor, corrosion potential, and temperature. A model “stainless steel” containing 5% Si (and elevated Ni...

... corrosion cracking crack growth rates prediction mechanisms emerging issues high temperature water water chemistry stainless steel Ni alloys corrosion potential stress intensity factor INTRODUCTION Stress corrosion cracking (SCC) in iron- and nickel-base alloy structural materials has occurred...

... chlorine. It was found that the pitting and repassivation potentials in synthetic seawater are strongly dependent on the alloy composition. The presence of free chlorine did not significantly affect the cathodic reaction kinetics. It, however, increased the corrosion potential and changed the corrosion...

..., a lower +dK/da value will produce an acceleration in growth rate. stress corrosion cracking crack growth rates K profiles dK/da high temperature water water chemistry stainless steel Ni alloys corrosion potential stress intensity factor Despite extensive study, important new insights...

...Effect of Corrosion Potential on SCC of Carbon Steel in Ethanol Abstract Stress corrosion cracking (SCC) of carbon steel in fuel ethanol service has been observed in an increasing number of failures in the last few years. This increase in failures is also due to the increasing use of ethanol...