...) cooling at a constant rate while the same potential of previous step is maintained. The procedure was successfully applied to alloys N06022, N06059, N07022, N06686 and N10362 in 0.1 and 1 mol/L chloride solutions, and alloy N06625 in 0.1 mol/L chloride solutions. Judicious application of this testing...

... the repository closure due to the heat released from radioactive decay. After reaching a peak, temperature will slowly decrease. In the present work, we have studied the crevice corrosion repassivation kinetics on cooling, for alloys N06022, N07022 and N10362 in chloride solutions. A two-stage electrochemical...

... the electrochemical noise technique to study the crevice corrosion process on alloys 22 (UNS N06022) and 625 (UNS N06625). Potential and current noise records were obtained by using asymmetric electrodes assembly which consisted of a creviced specimen of alloy N06022 or N06625 and a second non-creviced specimen...

.... nickel alloys N06022 corrosion bicarbonate chloride anodic INTRODUCTION Table 1 Chemical Composition of Nickel Based Alloys (Weight %). Alloy Chemical compositions Wt (%)^* Ni Cr Mo W Fe Si Mn C S Other 22 56.58 22.26 13.90 3.15 3.81 0.02 0.24 0.004...

..., N06110, N06022, N10276 alloys and Grade 2 titanium) in calcium bromide solutions using the ASTM G150 electrochemical critical pitting test procedures. Similar experiments were also conducted in solutions containing equal concentrations (by weight) of chlorides and bromide. Corrosion of S32003, N08367...

.... Sulfate, chromate and molybdate were moderately goods inhibitors. N06022 chloride crevice corrosion repassivation potential inhibitors INTRODUCTION Alloy 22 (N06022) ¹ is a well known member of the Ni-Cr-Mo family of alloys. It was designed to withstand the most aggressive industrial...

...Abstract Alloy 22 (N06022) is a nickel base alloy especially designed to resist all forms of industrial corrosion. In aggressive environmental conditions and in the presence of tight occluded conditions, Alloy 22 could suffer crevice corrosion, a form of localized attack. The likelihood of crevice...

... corrosion increased. nickel alloys Ni-Cr-Mo alloys N06022 chloride crevice corrosion INTRODUCTION The ability of nickel (Ni) to retain large amounts of different alloying elements has led to the development of several Ni alloys families. ^{1 , 2} Each alloy family is intended for specific...

... potential up to reaching alloy repassivation. Abstract Alloy 22 (UNS N06022) belongs to the Ni-Cr-Mo family and it is highly resistant to general and localized corrosion, but it may suffer crevice corrosion in aggressive environmental conditions, such as high chloride concentration, high applied potential...

... of phosphate ions on chloride induced crevice corrosion of Alloy 22. Localized corrosion N06022 repassivation potential inhibition phosphates INTRODUCTION Alloy 22 (UNS N06022) is a nickel based alloy which contains a high concentration of chromium (22%) and belongs to the Ni-Cr-Mo-W family of alloys...

...TABLE 1 CHEMICAL COMPOSITION OF THE TESTED SPECIMENS (Wt%) Elements → Ni Cr Mo W Fe Others Nominal ASTM B 575 N06022 50-62 20-22.5 12.5-14.5 2.5-3.5 2-6 2.5Co-0.5Mn-0.35V max MA Rods Heat 2277-0-3251 ~56 22 14.1 2.7 4.5 1.3 Co, 0.31 Mn, 0.16 V, 0.03 Si, 0.003 C...

...INTRODUCTION Abstract Crevice corrosion of Alloy 22 (N06022) in hot chloride solutions at open circuit potential was studied in short term tests. Mill Annealed (MA) and thermally aged PCA (Prism Crevice Assembly) specimens were used. Thermally aged specimens were obtained by aging at 760 °C...

... behavior of Alloy 22 (N06022) in 1M NaCl solutions at various pH values from acidic to neutral at 90°C. All the tested material was wrought Mill Annealed (MA). Tests were also performed in NaCl solutions containing weak organic acids such as oxalic, acetic, citric and picric acids. Results show...

...Abstract Alloy 22 (N06022) belongs to the Ni-Cr-Mo family and it is highly resistant to localized corrosion. The anodic and cathodic behavior of mill annealed (MA) and thermally aged (10 hours at 760°C) Alloy 22 was studied in chloride solutions with different pH values at 90°C. Thermal aging...

... the release of radioactive material will consist of a sealed waste package and a detached drip shield. The waste package will be double walled with an inner shell of a type 316 stainless steel (with modified carbon and nitrogen compositional ranges) and an outer barrier of Alloy 22 (N06022). The 316 SS shell...

...Abstract The resistance of Alloy 22 (N06022) to localized corrosion, mainly crevice corrosion, has been extensively investigated in the last few years. However, the behavior of Alloy 22 in concentrated aqueous solutions that may simulate concentrated ground waters was not fully understood...

... . This type of PTFE compression gasket is not considered demanding enough to study crevice corrosion of Alloy 22. ³⁰ Abstract Alloy 22 (N06022) is highly resistant to localized corrosion. Under aggressive environmental conditions Alloy 22 may be susceptible to crevice corrosion in hot chloride...

...Alloy 22 (N06022) is a nickel (Ni) based alloy that contains nominally 22% chromium (Cr), 13% molybdenum (Mo), 3% tungsten (W) and 3% iron (Fe) (ASTM B 575). ¹ Alloy 22 is able to remain passive in most industrial environments because of its high level of Cr, and therefore has...

... potential. The scan rate used was 0.167 mV/s, and the scan direction was reversed when the current reached 1-10 mA/cm². At the conclusion of the test, the specimens were examined microscopically for signs of corrosion. Abstract Alloy 22 (N06022) is a nickel based alloy containing alloying...

...INTRODUCTION Alloy 22 (N06022) specimens were prepared from wrought mill annealed plate stock. The chemical composition of the alloy in weight percent was 59.56% Ni, 20.38% Cr, 13.82% Mo, 2.64% W, 2.85% Fe, 0.17% V and 0.16% Mn (Heat 059902LL1). All the tested material was wrought Mill Annealed...