In-situ digital image correlation for fracture analysis of oxides formed on zirconium alloys

P. Platt; D. Lunt; E. Polatidis; M. R. Wenman; M. Preuss

doi:10.1016/j.corsci.2016.05.026

In-situ digital image correlation for fracture analysis of oxides formed on zirconium alloys

P. Platt, D. Lunt, E. Polatidis, M. R. Wenman, M. Preuss

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

22 Citations (Scopus)

Abstract

Repeated breakdown of the protective oxide layer can be a key factor in the oxidation of zirconium alloys. Hence, accurate measurement of the oxide fracture strength is crucial for simulating the oxidation of these alloys. High resolution digital image correlation was applied to SEM images taken during in-situ tensile loading of oxidised ZIRLO^TM. Bi-axial strain measurements obtained during crack formation in the oxide films were converted into stress, and fitted to Weibull distributions to predict the oxide failure strength. Analysis highlights the impact of surface roughness. Samples polished prior to oxidation gave a fracture strength of ∼1.6 GPa.

Original language	English
Pages (from-to)	344-351
Number of pages	8
Journal	Corrosion Science
Volume	111
DOIs	https://doi.org/10.1016/j.corsci.2016.05.026
Publication status	Published - Oct 2016
Externally published	Yes

Keywords

A. Zirconium
B. DIC
B. SEM
B. XRD
C. Effects of strain
C. Oxidation

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10.1016/j.corsci.2016.05.026

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title = "In-situ digital image correlation for fracture analysis of oxides formed on zirconium alloys",

abstract = "Repeated breakdown of the protective oxide layer can be a key factor in the oxidation of zirconium alloys. Hence, accurate measurement of the oxide fracture strength is crucial for simulating the oxidation of these alloys. High resolution digital image correlation was applied to SEM images taken during in-situ tensile loading of oxidised ZIRLOTM. Bi-axial strain measurements obtained during crack formation in the oxide films were converted into stress, and fitted to Weibull distributions to predict the oxide failure strength. Analysis highlights the impact of surface roughness. Samples polished prior to oxidation gave a fracture strength of ∼1.6 GPa.",

keywords = "A. Zirconium, B. DIC, B. SEM, B. XRD, C. Effects of strain, C. Oxidation",

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T1 - In-situ digital image correlation for fracture analysis of oxides formed on zirconium alloys

AU - Platt, P.

AU - Lunt, D.

AU - Polatidis, E.

AU - Wenman, M. R.

AU - Preuss, M.

PY - 2016/10

Y1 - 2016/10

N2 - Repeated breakdown of the protective oxide layer can be a key factor in the oxidation of zirconium alloys. Hence, accurate measurement of the oxide fracture strength is crucial for simulating the oxidation of these alloys. High resolution digital image correlation was applied to SEM images taken during in-situ tensile loading of oxidised ZIRLOTM. Bi-axial strain measurements obtained during crack formation in the oxide films were converted into stress, and fitted to Weibull distributions to predict the oxide failure strength. Analysis highlights the impact of surface roughness. Samples polished prior to oxidation gave a fracture strength of ∼1.6 GPa.

AB - Repeated breakdown of the protective oxide layer can be a key factor in the oxidation of zirconium alloys. Hence, accurate measurement of the oxide fracture strength is crucial for simulating the oxidation of these alloys. High resolution digital image correlation was applied to SEM images taken during in-situ tensile loading of oxidised ZIRLOTM. Bi-axial strain measurements obtained during crack formation in the oxide films were converted into stress, and fitted to Weibull distributions to predict the oxide failure strength. Analysis highlights the impact of surface roughness. Samples polished prior to oxidation gave a fracture strength of ∼1.6 GPa.

KW - A. Zirconium

KW - B. DIC

KW - B. SEM

KW - B. XRD

KW - C. Effects of strain

KW - C. Oxidation

UR - http://www.scopus.com/inward/record.url?scp=84969980458&partnerID=8YFLogxK

U2 - 10.1016/j.corsci.2016.05.026

DO - 10.1016/j.corsci.2016.05.026

M3 - Article

AN - SCOPUS:84969980458

SN - 0010-938X

VL - 111

SP - 344

EP - 351

JO - Corrosion Science

JF - Corrosion Science

ER -

In-situ digital image correlation for fracture analysis of oxides formed on zirconium alloys

Abstract

Keywords

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