Investigating the effect of aging on transpassive behavior of Ni-based alloys in sulfuric acid with shell-isolated nanoparticle enhanced Raman spectroscopy (SHINERS)

Nicole R. Honesty; Andrew A. Gewirth

doi:10.1016/j.corsci.2012.10.002

Investigating the effect of aging on transpassive behavior of Ni-based alloys in sulfuric acid with shell-isolated nanoparticle enhanced Raman spectroscopy (SHINERS)

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Abstract

The effect of high temperature aging on the electrochemical behavior of Ni superalloys has implications for their use in Generation IV nuclear reactors. Linear sweep voltammetry, shell-isolated nanoparticle enhanced Raman spectroscopy (SHINERS), and X-ray photoelectron spectroscopy (XPS) were used to interrogate the passivation layer formed on heat-treated and as-received samples of Inconel 617 and Haynes 230. Results demonstrate that heat treatment improves electrochemical corrosion resistance for both alloys. The improved electrochemical behavior is associated with differences in the spectra; specifically, the appearance of a mixed Cr(III/VI) oxide.

Original language	English (US)
Pages (from-to)	67-74
Number of pages	8
Journal	Corrosion Science
Volume	67
DOIs	https://doi.org/10.1016/j.corsci.2012.10.002
State	Published - Feb 2013

Keywords

A. Sulfuric acid
A. Superalloys
B. Polarization
B. Raman spectroscopy
C. High temperature corrosion
C. Passive films

ASJC Scopus subject areas

Materials Science(all)
Chemical Engineering(all)
Chemistry(all)

Online availability

10.1016/j.corsci.2012.10.002

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title = "Investigating the effect of aging on transpassive behavior of Ni-based alloys in sulfuric acid with shell-isolated nanoparticle enhanced Raman spectroscopy (SHINERS)",

abstract = "The effect of high temperature aging on the electrochemical behavior of Ni superalloys has implications for their use in Generation IV nuclear reactors. Linear sweep voltammetry, shell-isolated nanoparticle enhanced Raman spectroscopy (SHINERS), and X-ray photoelectron spectroscopy (XPS) were used to interrogate the passivation layer formed on heat-treated and as-received samples of Inconel 617 and Haynes 230. Results demonstrate that heat treatment improves electrochemical corrosion resistance for both alloys. The improved electrochemical behavior is associated with differences in the spectra; specifically, the appearance of a mixed Cr(III/VI) oxide.",

keywords = "A. Sulfuric acid, A. Superalloys, B. Polarization, B. Raman spectroscopy, C. High temperature corrosion, C. Passive films",

author = "Honesty, {Nicole R.} and Gewirth, {Andrew A.}",

note = "Funding Information: The support of the DOE (INL 120293 A0782) is gratefully acknowledged. We thank R. Haasch for his help performing XPS. XPS experiments were carried out in the Frederick Seitz Materials Research Laboratory Central Facilities, University of Illinois. ",

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doi = "10.1016/j.corsci.2012.10.002",

language = "English (US)",

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AU - Honesty, Nicole R.

AU - Gewirth, Andrew A.

N1 - Funding Information: The support of the DOE (INL 120293 A0782) is gratefully acknowledged. We thank R. Haasch for his help performing XPS. XPS experiments were carried out in the Frederick Seitz Materials Research Laboratory Central Facilities, University of Illinois.

PY - 2013/2

Y1 - 2013/2

N2 - The effect of high temperature aging on the electrochemical behavior of Ni superalloys has implications for their use in Generation IV nuclear reactors. Linear sweep voltammetry, shell-isolated nanoparticle enhanced Raman spectroscopy (SHINERS), and X-ray photoelectron spectroscopy (XPS) were used to interrogate the passivation layer formed on heat-treated and as-received samples of Inconel 617 and Haynes 230. Results demonstrate that heat treatment improves electrochemical corrosion resistance for both alloys. The improved electrochemical behavior is associated with differences in the spectra; specifically, the appearance of a mixed Cr(III/VI) oxide.

AB - The effect of high temperature aging on the electrochemical behavior of Ni superalloys has implications for their use in Generation IV nuclear reactors. Linear sweep voltammetry, shell-isolated nanoparticle enhanced Raman spectroscopy (SHINERS), and X-ray photoelectron spectroscopy (XPS) were used to interrogate the passivation layer formed on heat-treated and as-received samples of Inconel 617 and Haynes 230. Results demonstrate that heat treatment improves electrochemical corrosion resistance for both alloys. The improved electrochemical behavior is associated with differences in the spectra; specifically, the appearance of a mixed Cr(III/VI) oxide.

KW - A. Sulfuric acid

KW - A. Superalloys

KW - B. Polarization

KW - B. Raman spectroscopy

KW - C. High temperature corrosion

KW - C. Passive films

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VL - 67

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JO - Corrosion Science

JF - Corrosion Science

ER -

Investigating the effect of aging on transpassive behavior of Ni-based alloys in sulfuric acid with shell-isolated nanoparticle enhanced Raman spectroscopy (SHINERS)

Abstract

Keywords

ASJC Scopus subject areas

Online availability

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