Small concentrations of NaCl help building stable inhibiting layers from 2,5-dimercapto-1,3,4-thiadiazole (DMTD) on AA2024-T3

Jingjing Zhao; Albert Santoso; Santiago J. Garcia

doi:10.1016/j.corsci.2023.111562

Small concentrations of NaCl help building stable inhibiting layers from 2,5-dimercapto-1,3,4-thiadiazole (DMTD) on AA2024-T3

Jingjing Zhao^*, Albert Santoso, Santiago J. Garcia

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

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Abstract

The interaction of 2,5-dimercapto-1,3,4-thiadiazole (DMTD) with the AA2024-T3 local microstructure (S-phase, secondary phases and matrix) as function of the NaCl concentration is studied. The inhibiting power and the local interaction of DMTD with the metal were studied by in–situ opto-electrochemistry, XPS and Raman spectroscopy. The stability of the inhibiting layers was evaluated by re-exposing the samples to NaCl solutions without inhibitor. The amount of DMTD and its interaction state (chemisorption/physisorption) vary with the local microstructural composition and NaCl concentration. Higher stability of the inhibiting layers is obtained when these are formed in presence of small amounts of NaCl (0.025–0.25 M).

Original language	English
Article number	111562
Number of pages	17
Journal	Corrosion Science
Volume	225
DOIs	https://doi.org/10.1016/j.corsci.2023.111562
Publication status	Published - 2023

Funding

The author acknowledge the financial support by Airbus Operations GmbH and Holland High Tech Program. The authors acknowledge Dr. Markus Jordan from Airbus Operations GmbH for his continued support and constructive discussions, Mr. Marlon Mopon for his support with the opto-electrochemical set-up, Mr. Bart Boshuizen for the XPS measurements and Dr. Tone Kokalj from Institute Jozef Stefan in Slovenia for enriching discussions

Keywords

Corrosion inhibition
DMTD
Inhibitor stability
Organic corrosion inhibitor
Raman
Self-healing

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10.1016/j.corsci.2023.111562

1-s2.0-S0010938X23006042-mainFinal published version, 20.8 MBLicence: CC BY

Cite this

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title = "Small concentrations of NaCl help building stable inhibiting layers from 2,5-dimercapto-1,3,4-thiadiazole (DMTD) on AA2024-T3",

abstract = "The interaction of 2,5-dimercapto-1,3,4-thiadiazole (DMTD) with the AA2024-T3 local microstructure (S-phase, secondary phases and matrix) as function of the NaCl concentration is studied. The inhibiting power and the local interaction of DMTD with the metal were studied by in–situ opto-electrochemistry, XPS and Raman spectroscopy. The stability of the inhibiting layers was evaluated by re-exposing the samples to NaCl solutions without inhibitor. The amount of DMTD and its interaction state (chemisorption/physisorption) vary with the local microstructural composition and NaCl concentration. Higher stability of the inhibiting layers is obtained when these are formed in presence of small amounts of NaCl (0.025–0.25 M).",

keywords = "Corrosion inhibition, DMTD, Inhibitor stability, Organic corrosion inhibitor, Raman, Self-healing",

author = "Jingjing Zhao and Albert Santoso and Garcia, {Santiago J.}",

year = "2023",

doi = "10.1016/j.corsci.2023.111562",

language = "English",

volume = "225",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier",

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T1 - Small concentrations of NaCl help building stable inhibiting layers from 2,5-dimercapto-1,3,4-thiadiazole (DMTD) on AA2024-T3

AU - Zhao, Jingjing

AU - Santoso, Albert

AU - Garcia, Santiago J.

PY - 2023

Y1 - 2023

N2 - The interaction of 2,5-dimercapto-1,3,4-thiadiazole (DMTD) with the AA2024-T3 local microstructure (S-phase, secondary phases and matrix) as function of the NaCl concentration is studied. The inhibiting power and the local interaction of DMTD with the metal were studied by in–situ opto-electrochemistry, XPS and Raman spectroscopy. The stability of the inhibiting layers was evaluated by re-exposing the samples to NaCl solutions without inhibitor. The amount of DMTD and its interaction state (chemisorption/physisorption) vary with the local microstructural composition and NaCl concentration. Higher stability of the inhibiting layers is obtained when these are formed in presence of small amounts of NaCl (0.025–0.25 M).

AB - The interaction of 2,5-dimercapto-1,3,4-thiadiazole (DMTD) with the AA2024-T3 local microstructure (S-phase, secondary phases and matrix) as function of the NaCl concentration is studied. The inhibiting power and the local interaction of DMTD with the metal were studied by in–situ opto-electrochemistry, XPS and Raman spectroscopy. The stability of the inhibiting layers was evaluated by re-exposing the samples to NaCl solutions without inhibitor. The amount of DMTD and its interaction state (chemisorption/physisorption) vary with the local microstructural composition and NaCl concentration. Higher stability of the inhibiting layers is obtained when these are formed in presence of small amounts of NaCl (0.025–0.25 M).

KW - Corrosion inhibition

KW - DMTD

KW - Inhibitor stability

KW - Organic corrosion inhibitor

KW - Raman

KW - Self-healing

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U2 - 10.1016/j.corsci.2023.111562

DO - 10.1016/j.corsci.2023.111562

M3 - Article

AN - SCOPUS:85172990417

SN - 0010-938X

VL - 225

JO - Corrosion Science

JF - Corrosion Science

M1 - 111562

ER -

Small concentrations of NaCl help building stable inhibiting layers from 2,5-dimercapto-1,3,4-thiadiazole (DMTD) on AA2024-T3

Abstract

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Keywords

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Data underlying the publication: Small concentrations of NaCl help building stable inhibiting layers from 2,5-dimercapto-1,3,4-thiadiazole (DMTD) on AA2024-T3

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Small concentrations of NaCl help building stable inhibiting layers from 2,5-dimercapto-1,3,4-thiadiazole (DMTD) on AA2024-T3

Abstract

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Datasets

Data underlying the publication: Small concentrations of NaCl help building stable inhibiting layers from 2,5-dimercapto-1,3,4-thiadiazole (DMTD) on AA2024-T3

Cite this