Should the oxygen source be considered in the initiation of KCl-induced high-temperature corrosion?

Juho Lehmusto; Mohammad Sattari; Mats Halvarsson; Leena Hupa

doi:10.1016/j.corsci.2021.109332

Should the oxygen source be considered in the initiation of KCl-induced high-temperature corrosion?

Juho Lehmusto^*, Mohammad Sattari, Mats Halvarsson, Leena Hupa

^*Tämän työn vastaava kirjoittaja

Tutkimustuotos: Lehtiartikkeli › Artikkeli › Tieteellinen › vertaisarvioitu

4 Sitaatiot (Scopus)

Abstrakti

The role of two oxygen sources, oxygen and water vapor, in the initiation of KCl-induced high-temperature corrosion was addressed by studying two high-alloyed commercial materials at 550 °C. The differentiation between the two oxygen sources was implemented with ¹⁸O-enriched water and ¹⁶O₂.
Based on the results, the solid-solid reaction between KCl(s) and the protective oxide on the alloy surface appeared to be more responsible for corrosion than the gas-solid reaction between KCl(g) and the protective oxide. Water was more involved in the abovementioned reactions than O₂: ¹⁸O was the main oxygen isotope found in the formed surface oxides and intermediates.

Alkuperäiskieli	Englanti
Artikkeli	109332
Julkaisu	Corrosion Science
Vuosikerta	183
DOI - pysyväislinkit	https://doi.org/10.1016/j.corsci.2021.109332
Tila	Julkaistu - 1 toukok. 2021
OKM-julkaisutyyppi	A1 Julkaistu artikkeli, soviteltu

Pääsy asiakirjaan

10.1016/j.corsci.2021.109332Lisenssi: CC BY-NC-ND

Viittausmuodot

@article{9baf1a40a1eb49d0ac0cf986461bd2e4,

title = "Should the oxygen source be considered in the initiation of KCl-induced high-temperature corrosion?",

abstract = "The role of two oxygen sources, oxygen and water vapor, in the initiation of KCl-induced high-temperature corrosion was addressed by studying two high-alloyed commercial materials at 550 °C. The differentiation between the two oxygen sources was implemented with 18O-enriched water and 16O2.Based on the results, the solid-solid reaction between KCl(s) and the protective oxide on the alloy surface appeared to be more responsible for corrosion than the gas-solid reaction between KCl(g) and the protective oxide. Water was more involved in the abovementioned reactions than O2: 18O was the main oxygen isotope found in the formed surface oxides and intermediates.",

keywords = "Alloy, Stainless steel, SEM, SIMS, TEM, XPS, High-temperature corrosion",

author = "Juho Lehmusto and Mohammad Sattari and Mats Halvarsson and Leena Hupa",

year = "2021",

month = may,

day = "1",

doi = "10.1016/j.corsci.2021.109332",

language = "English",

volume = "183",

journal = "Corrosion Science",