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Sigma and Random Grain Boundaries and Their Effect on the Corrosion of the Ni-Cr-Mo Alloy 22

Published on Jan 1, 2016in Journal of The Electrochemical Society3.12
· DOI :10.1149/2.1111605jes
N. Ebrahimi8
Estimated H-index: 8
(UWO: University of Western Ontario),
Pellumb Jakupi12
Estimated H-index: 12
(UWO: University of Western Ontario)
+ 3 AuthorsD.W. Shoesmith27
Estimated H-index: 27
(UWO: University of Western Ontario)
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  • References (39)
  • Citations (5)
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References39
Newest
Published on Apr 1, 2016in Corrosion Science6.36
N. Ebrahimi8
Estimated H-index: 8
(UWO: University of Western Ontario),
J.J. Noël14
Estimated H-index: 14
(UWO: University of Western Ontario)
+ 1 AuthorsD.W. Shoesmith27
Estimated H-index: 27
(UWO: University of Western Ontario)
Abstract The initiation and propagation of crevice corrosion on the BC1 nickel-chromium-molybdenum alloy has been studied galvanostatically in concentrated chloride solution at 120 °C, and the distribution of corrosion damage determined using surface analytical techniques. The distribution of damage was dependent on the applied current and showed an increased tendency to spread across the surface as the applied current was increased. Attempts to induce repassivation by galvanodynamically reducin...
Published on Dec 1, 2015in Corrosion1.86
N. Ebrahimi8
Estimated H-index: 8
,
Pellumb Jakupi12
Estimated H-index: 12
+ 1 AuthorsD.W. Shoesmith27
Estimated H-index: 27
The roles of the alloying elements Mo, Cr, and W in resisting crevice corrosion of UNS N06022, UNS N06625, and UNS N10362 have been studied under galvanostatic conditions in 5 mol/L NaCl at 150°C. Corrosion damage patterns were investigated using surface analytical techniques such as scanning electron microscopy and optical imaging, and the corrosion products characterized by energy dispersive x-ray spectroscopy. While the Cr content of the alloy is critical in controlling initiation of crevice ...
Published on Sep 1, 2014in Corrosion Science6.36
S.Y. Persaud8
Estimated H-index: 8
(U of T: University of Toronto),
Andreas Korinek10
Estimated H-index: 10
(McMaster University)
+ 2 AuthorsR.C. Newman8
Estimated H-index: 8
(U of T: University of Toronto)
Abstract Alloy 600 in the solution annealed (SA) and thermally treated (TT) conditions was exposed to a hydrogenated steam environment considered to simulate primary water in pressurized water reactors. The likely susceptibility to primary water stress corrosion cracking (PWSCC) was evaluated using the internal oxidation model. A FIB was used to extract cross-sections from Alloy 600 samples and elemental maps were generated; internal oxidation was observed intragranularly in all cases, resulting...
Published on Sep 1, 2014in MRS Communications1.94
Derek J. Horton5
Estimated H-index: 5
(UVA: University of Virginia),
A. W. Zhu1
Estimated H-index: 1
(UVA: University of Virginia)
+ 1 AuthorsMatthew Neurock56
Estimated H-index: 56
(UVA: University of Virginia)
Electrochemical dissolution by congruent oxidation of Fe Pd in 1 M HCl solution was strongly controlled by crystallographic orientation. Anodic dissolution was characterized over a wide variety of grain surface plane orientations providing a detailed view of the crystallographic nature of oxidative dissolution and surface facet evolution as a function of grain orientation. Near {100}-oriented grains retained low surface roughness after corrosion and low dissolution rates. Grains with orientation...
Published on Jul 1, 2014in Corrosion1.86
A.K. Mishra10
Estimated H-index: 10
(UWO: University of Western Ontario),
D.W. Shoesmith27
Estimated H-index: 27
The effects of Cr, Mo, and W on the crevice corrosion of a number of commercial Ni-Cr-Mo(W) alloys in 1.0 mol/L sodium chloride (NaCl) were studied using the potentiodynamic-galvanostatic-potentiodynamic technique to measure film breakdown and repassivation potentials as well as protection temperatures. As expected, Cr is the key element determining resistance to crevice initiation, but a substantial Mo alloy content is required to achieve maximum film stability, especially at temperatures >60°C...
Published on Jun 1, 2013in Electrochimica Acta5.38
A.K. Mishra10
Estimated H-index: 10
(UWO: University of Western Ontario),
S. Ramamurthy1
Estimated H-index: 1
+ 1 AuthorsD.W. Shoesmith27
Estimated H-index: 27
(UWO: University of Western Ontario)
Abstract Electrochemical and surface analytical techniques (X-ray photoelectron and Auger spectroscopies) were used to characterize the influence of potential on the properties of the oxide film formed on the Hybrid BC-1 (a Ni–Cr–Mo) alloy in chloride solutions containing bicarbonate. In the passive region the film possesses the expected bilayer structure with a Cr(III)-dominated barrier layer containing mixed oxidation states of Mo and an outer dominantly-hydroxide layer. At more positive poten...
Published on Oct 1, 2012in Acta Materialia7.29
Shigeaki Kobayashi13
Estimated H-index: 13
(Ashikaga Institute of Technology),
T. Maruyama1
Estimated H-index: 1
(Ashikaga Institute of Technology)
+ 1 AuthorsTadao Watanabe33
Estimated H-index: 33
(NU: Northeastern University)
Abstract The effect of grain boundary microstructure on the fracture resistance of sulfur-doped polycrystalline nickel was investigated using specimens with different grain boundary microstructures to reveal the usefulness of grain boundary engineering for control of segregation-induced intergranular brittle fracture of polycrystalline materials. The sulfur-doped polycrystalline nickel specimen with more homogeneous fine-grained structure and a higher fraction of low-Σ coincidence site lattice (...
Published on Aug 1, 2012in Corrosion Science6.36
C. Luo10
Estimated H-index: 10
(University of Manchester),
X. Zhou33
Estimated H-index: 33
(University of Manchester)
+ 1 AuthorsA.E. Hughes37
Estimated H-index: 37
(CSIRO: Commonwealth Scientific and Industrial Research Organisation)
Abstract Aluminium alloy 2024-T351 was examined using a range of electron microscope techniques at the early stages of attack after immersion in 0.1 M NaCl aqueous solution. At attack sites, a significant portion of the intergranular network was attacked, even though only 15% of the boundaries were decorated by second phase particles (θ-phase). Structure of the grains and the grain boundaries, including grain misorientation angle and grain stored energy, based on dislocation density, were probed...
Published on Aug 1, 2012in Electrochimica Acta5.38
Natalia S. Zadorozne2
Estimated H-index: 2
,
C. Mabel Giordano4
Estimated H-index: 4
+ 2 AuthorsRaul B. Rebak19
Estimated H-index: 19
(GE: General Electric)
Abstract The crevice corrosion kinetics of alloys C-22, C-22HS and HYBRID-BC1 was studied in several chloride solutions at 90 °C. The crevice corrosion resistance of the alloys increased with PREN (Pitting Resistance Equivalent Number), which is mainly affected by the Mo content in the alloys. The crevice corrosion kinetics of the three alloys was analyzed at potentials slightly higher than the repassivation potential. Crevice propagation was controlled by ohmic drop in the more dilute chloride ...
Published on Jan 1, 2012in Corrosion Science6.36
Pellumb Jakupi12
Estimated H-index: 12
(UWO: University of Western Ontario),
J.J. Noël14
Estimated H-index: 14
(UWO: University of Western Ontario),
D.W. Shoesmith27
Estimated H-index: 27
(UWO: University of Western Ontario)
Abstract Crevice corrosion of alloy-22 was studied galvanostatically (10–200 μA) at 120 °C in 5 M NaCl. Corrosion damage was analyzed by confocal laser scanning microscopy to obtain penetration profiles. Three-dimensional images demonstrate that damage morphologies varied with applied current. At low applied currents (⩽70 μA), propagation predominantly leads to penetration into the alloy, whereas at higher applied currents (>70 μA) corrosion damage spreads across the alloy. Limited penetration d...
Cited By5
Newest
Published on Oct 1, 2019in Measurement2.79
Kalinga Simant Bal2
Estimated H-index: 2
,
Jyotsna Dutta Majumdar11
Estimated H-index: 11
,
Asimava Roy Choudhury2
Estimated H-index: 2
Abstract The laser displacement sensor scan technique proposed in the present study helps to calculate the corrosion rate (CR), and subsequently, determine the susceptibility to intergranular corrosion, without preparing separate samples for the weld zone (WZ), adjacent heat affected zone (HAZ) and unaffected base metal (BM). Processing of the displacement data collected during laser displacement sensor scan of the electron beam welded Hastelloy C-276 sample before and after the corrosion test s...
Published on Jan 1, 2019in Journal of The Electrochemical Society3.12
Hongliu Yang4
Estimated H-index: 4
,
Arezoo Dianat14
Estimated H-index: 14
+ 1 AuthorsGianaurelio Cuniberti41
Estimated H-index: 41
For manufacturing copper interconnects by the damscence technique, electrochemical deposition of copper on patterned sustrates requires several additives to achieve compact filling of trenches and vias, where chloride ions play a crucial role. In the highly acidic electrolyte, adsorption of chloride ions on copper is expected to compete with the adsorption of hydrogen, depending on the copper electrode potential. We propose a general phenomenological model of the coadsorption of two ion species ...
Published on Sep 1, 2018in Electrochimica Acta5.38
Jeffrey D. Henderson5
Estimated H-index: 5
(UWO: University of Western Ontario),
N. Ebrahimi8
Estimated H-index: 8
(UWO: University of Western Ontario)
+ 3 AuthorsJ.J. Noël14
Estimated H-index: 14
(UWO: University of Western Ontario)
Abstract Coupling of metal oxidation in crevice corrosion to both O 2 reduction on surfaces external to the crevice and H + reduction occurring within the crevice, was studied using a galvanostatic crevice corrosion technique in conjunction with weight loss analyses. Results suggest internal H + reduction is a significant contributor to the crevice corrosion of the studied alloys in 5 M NaCl at 120 °C. Repeat experiments suggest damage can be as much as doubled by H + reduction. This process, ho...
Published on Dec 1, 2017in Surface and Interface Analysis1.32
Brad Kobe13
Estimated H-index: 13
(UWO: University of Western Ontario),
Martin Badley1
Estimated H-index: 1
(UWO: University of Western Ontario)
+ 3 AuthorsD.W. Shoesmith27
Estimated H-index: 27
(UWO: University of Western Ontario)
Published on Dec 1, 2017in Surface and Interface Analysis1.32
N. Ebrahimi8
Estimated H-index: 8
(UWO: University of Western Ontario),
Mark C. Biesinger21
Estimated H-index: 21
(UWO: University of Western Ontario)
+ 1 AuthorsJ.J. Noël14
Estimated H-index: 14
(UWO: University of Western Ontario)
The electrochemical properties and compositions of passive, transpassive, and re-formed passive oxides on the Ni-Cr-Mo alloys C22 (high Cr/low Mo) and HYBRID BC1 (low Cr/high Mo) have been studied in 5.0M NaCl solutions. At low potentials in the passive region, the oxide was less resistive on BC1 compared to C22, possibly due to the influence of Mo in increasing the number of defects in the oxide. At higher potentials in the passive region, both alloys exhibited similar behaviours and compositio...
Published on Jul 1, 2017in Journal of Nuclear Materials2.55
Abhishek Telang9
Estimated H-index: 9
(UC: University of Cincinnati),
Amrinder S. Gill10
Estimated H-index: 10
+ 3 AuthorsVijay K. Vasudevan29
Estimated H-index: 29
(UC: University of Cincinnati)
Abstract In this study, we investigate the effect of thermo-mechanical processing (TMP) on the evolution of low coincident site lattice (CSL) grain boundaries (3 ≤ Σ ≤ 27) and thence on the precipitation behavior of carbides at various types of grain boundaries in Alloy 600. Detailed analysis of the microstructure using Electron Back-scattered Diffraction (EBSD) in the scanning electron microscope (SEM) as well as Precession Electron Diffraction (PED) and Energy Dispersive X-ray Spectroscopy (ED...
View next paperThe Effect of Alloy Composition on the Localized Corrosion Behavior of Ni-Cr-Mo Alloys