Identifying suboxide grains at the metal–oxide interface of a corroded Zr–1.0%Nb alloy using (S)TEM, transmission-EBSD and EELS

Jing Hu; Alistair Garner; Na Ni; Ali Gholinia; Rebecca Nicholls; Sergio Lozano-Perez; Philipp Frankel; Michael Preuss; Chris Grovenor

doi:10.1016/j.micron.2014.10.004

Identifying suboxide grains at the metal–oxide interface of a corroded Zr–1.0%Nb alloy using (S)TEM, transmission-EBSD and EELS

Jing Hu, Alistair Garner, Na Ni, Ali Gholinia, Rebecca Nicholls, Sergio Lozano-Perez, Philipp Frankel, Michael Preuss, Chris Grovenor

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

Abstract

Abstract Here we report a methodology combining TEM, STEM, Transmission-EBSD and \{EELS\} to analyse the structural and chemical properties of the metal???oxide interface of corroded Zr alloys in unprecedented detail. TEM, \{STEM\} and diffraction results revealed the complexity of the distribution of suboxide grains at the metal???oxide interface. \{EELS\} provided accurate quantitative analysis of the oxygen concentration across the interface, identifying the existence of local regions of stoichiometric ZrO with varying thickness. Transmission-EBSD confirmed that the suboxide grains can be indexed with the hexagonal ZrO structure predicted with ab initio by Nicholls et al. (2014). The t-EBSD analysis has also allowed for the mapping of a relatively large region of the metal???oxide interface, revealing the location and size distribution of the suboxide grains.

Original language	English
Pages (from-to)	35-42
Number of pages	7
Journal	Micron
Volume	69
DOIs	https://doi.org/10.1016/j.micron.2014.10.004
Publication status	Published - 2015

Keywords

Oxidation mechanism

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10.1016/j.micron.2014.10.004

http://www.sciencedirect.com/science/article/pii/S0968432814001887

Light Alloys towards environmentally sustainable transport: 2nd generation solutions for Advanced Metallic Systems ( LATEST 2 )
Thompson, G. (PI), Bate, P. (CoI), Prangnell, P. (CoI), Preuss, M. (CoI), Quinta Da Fonseca, J. (CoI), Robson, J. (CoI), Skeldon, P. (CoI) & Zhou, X. (CoI)
1/02/10 → 31/07/15
Project: Research

Cite this

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title = "Identifying suboxide grains at the metal–oxide interface of a corroded Zr–1.0%Nb alloy using (S)TEM, transmission-EBSD and EELS",

abstract = "Abstract Here we report a methodology combining TEM, STEM, Transmission-EBSD and \{EELS\} to analyse the structural and chemical properties of the metal???oxide interface of corroded Zr alloys in unprecedented detail. TEM, \{STEM\} and diffraction results revealed the complexity of the distribution of suboxide grains at the metal???oxide interface. \{EELS\} provided accurate quantitative analysis of the oxygen concentration across the interface, identifying the existence of local regions of stoichiometric ZrO with varying thickness. Transmission-EBSD confirmed that the suboxide grains can be indexed with the hexagonal ZrO structure predicted with ab initio by Nicholls et al. (2014). The t-EBSD analysis has also allowed for the mapping of a relatively large region of the metal???oxide interface, revealing the location and size distribution of the suboxide grains.",

keywords = "Oxidation mechanism",

author = "Jing Hu and Alistair Garner and Na Ni and Ali Gholinia and Rebecca Nicholls and Sergio Lozano-Perez and Philipp Frankel and Michael Preuss and Chris Grovenor",

year = "2015",

doi = "10.1016/j.micron.2014.10.004",

language = "English",

volume = "69",

pages = "35--42",

journal = "Micron",

issn = "0968-4328",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Identifying suboxide grains at the metal–oxide interface of a corroded Zr–1.0%Nb alloy using (S)TEM, transmission-EBSD and EELS

AU - Hu, Jing

AU - Garner, Alistair

AU - Ni, Na

AU - Gholinia, Ali

AU - Nicholls, Rebecca

AU - Lozano-Perez, Sergio

AU - Frankel, Philipp

AU - Preuss, Michael

AU - Grovenor, Chris

PY - 2015

Y1 - 2015

N2 - Abstract Here we report a methodology combining TEM, STEM, Transmission-EBSD and \{EELS\} to analyse the structural and chemical properties of the metal???oxide interface of corroded Zr alloys in unprecedented detail. TEM, \{STEM\} and diffraction results revealed the complexity of the distribution of suboxide grains at the metal???oxide interface. \{EELS\} provided accurate quantitative analysis of the oxygen concentration across the interface, identifying the existence of local regions of stoichiometric ZrO with varying thickness. Transmission-EBSD confirmed that the suboxide grains can be indexed with the hexagonal ZrO structure predicted with ab initio by Nicholls et al. (2014). The t-EBSD analysis has also allowed for the mapping of a relatively large region of the metal???oxide interface, revealing the location and size distribution of the suboxide grains.

AB - Abstract Here we report a methodology combining TEM, STEM, Transmission-EBSD and \{EELS\} to analyse the structural and chemical properties of the metal???oxide interface of corroded Zr alloys in unprecedented detail. TEM, \{STEM\} and diffraction results revealed the complexity of the distribution of suboxide grains at the metal???oxide interface. \{EELS\} provided accurate quantitative analysis of the oxygen concentration across the interface, identifying the existence of local regions of stoichiometric ZrO with varying thickness. Transmission-EBSD confirmed that the suboxide grains can be indexed with the hexagonal ZrO structure predicted with ab initio by Nicholls et al. (2014). The t-EBSD analysis has also allowed for the mapping of a relatively large region of the metal???oxide interface, revealing the location and size distribution of the suboxide grains.

KW - Oxidation mechanism

U2 - 10.1016/j.micron.2014.10.004

DO - 10.1016/j.micron.2014.10.004

M3 - Article

SN - 0968-4328

VL - 69

SP - 35

EP - 42

JO - Micron

JF - Micron

ER -

Identifying suboxide grains at the metal–oxide interface of a corroded Zr–1.0%Nb alloy using (S)TEM, transmission-EBSD and EELS

Abstract

Keywords

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Projects

Light Alloys towards environmentally sustainable transport: 2nd generation solutions for Advanced Metallic Systems ( LATEST 2 )

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