The effect of short-range order on passivation of Fe-Cr alloys

Minglu Liu, Ashlee Aiello, Yusi Xie, Karl Sieradzki

Research output: Contribution to journalArticle

Abstract

While it is well known that 12–13 at.% chromium is required for stainless-like passivation behavior of binary Fe-Cr alloys, there remain outstanding questions regarding the compositional dependence of this behavior. In order to explore these issues, we examined the passivation behavior of short-range ordered (SRO) Fe-Cr alloys and compared this to that of their random solid solution counterpart. Our results reveal that for alloys containing between 12–18 at.% Cr, passivation in the SRO alloys is delayed and we attribute this to ordering effects on percolation behavior. Finally, we discuss some major outstanding questions regarding passivation in the Fe-Cr system and suggest that first-principles based calculations could make important contributions to our understanding of passivation in this system.

Original languageEnglish (US)
Pages (from-to)C830-C834
JournalJournal of the Electrochemical Society
Volume165
Issue number11
DOIs
StatePublished - Jan 1 2018

Fingerprint

Passivation
Chromium
Solid solutions

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

Cite this

The effect of short-range order on passivation of Fe-Cr alloys. / Liu, Minglu; Aiello, Ashlee; Xie, Yusi; Sieradzki, Karl.

In: Journal of the Electrochemical Society, Vol. 165, No. 11, 01.01.2018, p. C830-C834.

Research output: Contribution to journalArticle

Liu, Minglu ; Aiello, Ashlee ; Xie, Yusi ; Sieradzki, Karl. / The effect of short-range order on passivation of Fe-Cr alloys. In: Journal of the Electrochemical Society. 2018 ; Vol. 165, No. 11. pp. C830-C834.
@article{06b0f9745dc54b70b74e20e45f108c81,
title = "The effect of short-range order on passivation of Fe-Cr alloys",
abstract = "While it is well known that 12–13 at.{\%} chromium is required for stainless-like passivation behavior of binary Fe-Cr alloys, there remain outstanding questions regarding the compositional dependence of this behavior. In order to explore these issues, we examined the passivation behavior of short-range ordered (SRO) Fe-Cr alloys and compared this to that of their random solid solution counterpart. Our results reveal that for alloys containing between 12–18 at.{\%} Cr, passivation in the SRO alloys is delayed and we attribute this to ordering effects on percolation behavior. Finally, we discuss some major outstanding questions regarding passivation in the Fe-Cr system and suggest that first-principles based calculations could make important contributions to our understanding of passivation in this system.",
author = "Minglu Liu and Ashlee Aiello and Yusi Xie and Karl Sieradzki",
year = "2018",
month = "1",
day = "1",
doi = "10.1149/2.0871811jes",
language = "English (US)",
volume = "165",
pages = "C830--C834",
journal = "Journal of the Electrochemical Society",
issn = "0013-4651",
publisher = "Electrochemical Society, Inc.",
number = "11",

}

TY - JOUR

T1 - The effect of short-range order on passivation of Fe-Cr alloys

AU - Liu, Minglu

AU - Aiello, Ashlee

AU - Xie, Yusi

AU - Sieradzki, Karl

PY - 2018/1/1

Y1 - 2018/1/1

N2 - While it is well known that 12–13 at.% chromium is required for stainless-like passivation behavior of binary Fe-Cr alloys, there remain outstanding questions regarding the compositional dependence of this behavior. In order to explore these issues, we examined the passivation behavior of short-range ordered (SRO) Fe-Cr alloys and compared this to that of their random solid solution counterpart. Our results reveal that for alloys containing between 12–18 at.% Cr, passivation in the SRO alloys is delayed and we attribute this to ordering effects on percolation behavior. Finally, we discuss some major outstanding questions regarding passivation in the Fe-Cr system and suggest that first-principles based calculations could make important contributions to our understanding of passivation in this system.

AB - While it is well known that 12–13 at.% chromium is required for stainless-like passivation behavior of binary Fe-Cr alloys, there remain outstanding questions regarding the compositional dependence of this behavior. In order to explore these issues, we examined the passivation behavior of short-range ordered (SRO) Fe-Cr alloys and compared this to that of their random solid solution counterpart. Our results reveal that for alloys containing between 12–18 at.% Cr, passivation in the SRO alloys is delayed and we attribute this to ordering effects on percolation behavior. Finally, we discuss some major outstanding questions regarding passivation in the Fe-Cr system and suggest that first-principles based calculations could make important contributions to our understanding of passivation in this system.

UR - http://www.scopus.com/inward/record.url?scp=85067407302&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85067407302&partnerID=8YFLogxK

U2 - 10.1149/2.0871811jes

DO - 10.1149/2.0871811jes

M3 - Article

VL - 165

SP - C830-C834

JO - Journal of the Electrochemical Society

JF - Journal of the Electrochemical Society

SN - 0013-4651

IS - 11

ER -