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The self-sustaining propagation of crevice corrosion on the hybrid BC1 Ni–Cr–Mo alloy in hot saline solutions

Published on Apr 1, 2016in Corrosion Science6.36
· DOI :10.1016/j.corsci.2016.01.003
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)
Cite
Abstract
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 reducing the current to zero were unsuccessful. Galvanic coupling to a large BC1 counter electrode showed propagation could be maintained by oxygen reduction on the coupled electrode at a slow rate for >1200 h.
  • References (45)
  • Citations (10)
Cite
References45
Newest
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, 2015in Corrosion Science6.36
Akiko Tomio2
Estimated H-index: 2
(Nippon Steel),
Masayuki Sagara2
Estimated H-index: 2
(Nippon Steel)
+ 3 AuthorsTakeo Kudo3
Estimated H-index: 3
(University of Hyogo)
Abstract Corrosion test and surface analysis were conducted in the H 2 S–Cl – environments to elucidate the role of alloyed molybdenum on the corrosion resistance of Ni–Cr–Mo–Fe alloys. The alloyed molybdenum improves the localized corrosion resistance. The surface film is of double layers which comprise sulfide including molybdenum and chromium oxide. However, the Ni–Mo–Fe alloy also shows good corrosion resistance in the H 2 S–Cl – environment. This good corrosion resistance is considered to b...
Published on Sep 1, 2015in Corrosion1.86
Florent Bocher5
Estimated H-index: 5
,
John R. Scully32
Estimated H-index: 32
The effects of limited remote cathode area on crevice corrosion propagation, repassivation, and anode site reorganization were investigated on AISI 316 stainless steel (UNS S31600) in 0.6 M NaCl at 50°C. Both multiple crevice assemblies and rescaled coupled multi-electrode arrays were utilized. Potentiostatically activated crevices were subjected to conditions that limited propagation by either: (i) stepping the potential downward below the repassivation potential, (ii) performing a downward sca...
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 Surface and Interface Analysis1.32
Dmitrij Zagidulin7
Estimated H-index: 7
(UWO: University of Western Ontario),
Xiangrong Zhang4
Estimated H-index: 4
(UWO: University of Western Ontario)
+ 2 AuthorsDavid W. Shoesmith32
Estimated H-index: 32
(UWO: University of Western Ontario)
The composition of anodically grown oxide films on Alloy 22, a Ni-Cr-Mo(W) alloy, has been investigated in 5 mol l−1 NaCl at room temperature using X-ray photoelectron spectroscopy and time-of-flight secondary ion mass spectrometry. For applied potentials up to 0.2 V (vs Ag/AgCl (saturated KCl solution)), a Cr(III) oxide barrier layer develops at the alloy/oxide interface accounting for the excellent passivity demonstrated to prevail in this potential region by previous electrochemical impedance...
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 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 MRS Proceedings
Edgar C. Hornus2
Estimated H-index: 2
,
C. Mabel Giordano4
Estimated H-index: 4
+ 1 AuthorsRicardo M. Carranza10
Estimated H-index: 10
Abstract Deep geological disposal is the strongest alternative to the disposal of high level nuclear waste. Alloys 625, C-22, C-22HS and HYBRID-BC1 are considered among candidates as engineered barriers of nuclear repositories. Localized corrosion, like crevice or pitting corrosion, is one of the most important degradation processes that will limit the lifetime of containers. The susceptibility to crevice corrosion is measured by the value of the repassivation potential (E CO ). The objective of...
Cited By10
Newest
Published on Feb 1, 2019in Corrosion Science6.36
Jeffrey D. Henderson5
Estimated H-index: 5
(UWO: University of Western Ontario),
Xuejie Li1
Estimated H-index: 1
(PSL Research University)
+ 2 AuthorsK. Ogle8
Estimated H-index: 8
(PSL Research University)
Abstract The role of alloyed Mo during transpassive dissolution of four commercially available Ni-based alloys in neutral chloride solution was investigated by atomic emission spectroelectrochemistry. Time-resolved dissolution rates of Ni, Cr, Mo, and Fe were obtained as a function of applied potential. Mo enrichment occurred at the transpassive potentials and redissolved when the potential returned to the passive domain. These results suggest a mechanism of Mo enrichment and release that could ...
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 May 1, 2018in Corrosion Science6.36
Francesca Borgioli20
Estimated H-index: 20
(UniFI: University of Florence),
Emanuele Galvanetto17
Estimated H-index: 17
(UniFI: University of Florence),
T. Bacci18
Estimated H-index: 18
(UniFI: University of Florence)
Abstract Low temperature plasma nitriding was performed on CrNi-based (AISI 316L), CrMn-based (AISI 202) and nickel-free (P558) austenitic stainless steels. For all the used steels modified surface layers consist mainly of S phase without the precipitation of large amounts of nitrides, and they show enhanced surface microhardness and corrosion resistance in NaCl acqueous solution. The different electrochemical corrosion testing techniques evidence that the increase of corrosion potential may be ...
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 Dec 1, 2017
R M Carranza3
Estimated H-index: 3
,
Martín A. Rodríguez5
Estimated H-index: 5
Nickel-based alloys are considered among other candidate materials as engineering barriers of geological repositories due to their excellent corrosion resistance. These alloys possess unique advantages: they may be used in saturated and unsaturated repositories, hosted by practically any rock type, while also compatible with any (or no) backfill, and have minimal impact in other barriers. Alloy-22 (UNS N06022) has been the most studied of this class of alloys for its potential application in the...
Published on Nov 1, 2017in Corrosion Science6.36
Y.Z. Li4
Estimated H-index: 4
(HUST: Huazhong University of Science and Technology),
N. Xu4
Estimated H-index: 4
(HUST: Huazhong University of Science and Technology)
+ 1 AuthorsG.A. Zhang13
Estimated H-index: 13
(HUST: Huazhong University of Science and Technology)
Abstract The role of acetic acid (HAc) or H + in initiating the crevice corrosion of N80 carbon steel in CO 2 -saturated NaCl solution was studied by weight loss and electrochemical measurements. It is demonstrated that crevice corrosion could be initiated by the concentration difference either HAc or H + between outside and inside the crevice. The corrosion rate inside the crevice becomes higher than that outside the crevice and the total corrosion rate inside and outside the crevice decreases ...
Published on Jul 1, 2017in Corrosion Science6.36
Y.Z. Li4
Estimated H-index: 4
,
X.P. Guo6
Estimated H-index: 6
,
Guopeng Zhang6
Estimated H-index: 6
Abstract The corrosion behaviour of N80 carbon steel under the coexistence of stress and crevice in the CO 2 -saturated NaCl solution containing acetic acid (HAc) was studied by electrochemical measurements, surface analysis, and stress analysis. It is demonstrated that the corrosion potential of steel shifts negatively and corrosion activity is enhanced with increasing stress. A deep corrosion groove is formed at crevice mouth, which causes stress concentration, increasing the susceptibility to...
Published on Jan 1, 2017in Journal of The Electrochemical Society3.12
Xiangrong Zhang4
Estimated H-index: 4
,
Z. Qin14
Estimated H-index: 14
+ 2 AuthorsDavid W. Shoesmith32
Estimated H-index: 32
View next paperThe Role of Alloying Elements on the Crevice Corrosion Behavior of Ni-Cr-Mo Alloys