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The Effect of Sodium Hydroxide on Niobium Carbide Precipitates in Thermally Sensitised 20Cr-25Ni-Nb Austenitic Stainless Steel
- Source :
- Clark, R N, Chan, C M, Martin, T L, Walters, W S, Engelberg, D, Burrows, R & Williams, G 2020, ' The effect of sodium hydroxide on niobium carbide precipitates in thermally sensitised 20Cr-25Ni-Nb austenitic stainless steel ', Corrosion Science, vol. 170, 108596 . https://doi.org/10.1016/j.corsci.2020.108596, Clark, R N, Chan, C M, Martin, T L, Walters, W S, Engelberg, D, Burrows, R & Williams, G 2020, ' The Effect of Sodium Hydroxide on Niobium Carbide Precipitates in Thermally Sensitised 20Cr-25Ni-Nb Austenitic Stainless Steel ', Corrosion Science . https://doi.org/10.1016/j.corsci.2020.108596
- Publication Year :
- 2020
- Publisher :
- Elsevier BV, 2020.
-
Abstract
- Niobium-stabilised austenitic stainless steel (20Cr-25Ni-Nb) has been immersed in sodium hydroxide, which is used as a corrosion inhibitor. The work shows how NbC precipitates may be degraded by use of pH 13 NaOH. Initial electrochemical measurements indicate that there is no benefit to this pretreatment as regards long-term corrosion inhibition, and post corrosion imaging shows the initiation of pitting corrosion at Nb-rich precipitates still present in the microstructure.
- Subjects :
- Materials science
020209 energy
General Chemical Engineering
C Inclusion
02 engineering and technology
A Stainless steel
engineering.material
Electrochemistry
Corrosion
chemistry.chemical_compound
Corrosion inhibitor
B SEM
0202 electrical engineering, electronic engineering, information engineering
Pitting corrosion
Dalton Nuclear Institute
General Materials Science
Austenitic stainless steel
B AFM
B Polarisation
Metallurgy
General Chemistry
C Alkaline corrosion
021001 nanoscience & nanotechnology
Microstructure
ResearchInstitutes_Networks_Beacons/dalton_nuclear_institute
chemistry
Sodium hydroxide
engineering
B EIS
Niobium carbide
0210 nano-technology
C Intergranular corrosion
C Pitting corrosion
SIMS
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- Clark, R N, Chan, C M, Martin, T L, Walters, W S, Engelberg, D, Burrows, R & Williams, G 2020, ' The effect of sodium hydroxide on niobium carbide precipitates in thermally sensitised 20Cr-25Ni-Nb austenitic stainless steel ', Corrosion Science, vol. 170, 108596 . https://doi.org/10.1016/j.corsci.2020.108596, Clark, R N, Chan, C M, Martin, T L, Walters, W S, Engelberg, D, Burrows, R & Williams, G 2020, ' The Effect of Sodium Hydroxide on Niobium Carbide Precipitates in Thermally Sensitised 20Cr-25Ni-Nb Austenitic Stainless Steel ', Corrosion Science . https://doi.org/10.1016/j.corsci.2020.108596
- Accession number :
- edsair.doi.dedup.....6851cc6a7545cc5c6ea7b992a7f21442