Three-dimensional displacement mapping of diffused Pt thermal barrier coatings via synchrotron X-ray computed tomography and digital volume correlation

Danial Khoshkhou; Mahmoud Mostafavi; Christina Reinhard; MP Taylor; David S Rickerby; IM Edmonds; H.E. Evans; James Marrow; Brian Connolly

doi:10.1016/j.scriptamat.2015.10.033

Three-dimensional displacement mapping of diffused Pt thermal barrier coatings via synchrotron X-ray computed tomography and digital volume correlation

Danial Khoshkhou
, Mahmoud Mostafavi
, Christina Reinhard
, MP Taylor
, David S Rickerby
, IM Edmonds
, H.E. Evans
, James Marrow
, Brian Connolly

Research output: Contribution to journal › Article (Academic Journal) › peer-review

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472 Downloads (Pure)

Abstract

A progressive study of the three-dimensional deformation field within a γ/γ′ thermal barrier coating following cyclic oxidation at 1200 °C is presented, observed using synchrotron X-ray micro-computed tomography and analysed by digital volume correlation. Oxide thickening and bond coat creep displacements are quantified as a function of exposure time at temperature. Linear gradients of these displacements are measured both in-plane and normal to the oxide layer. The first thermal cycle shows the most displacement changes; destructive sectioning confirms the DVC-calculated displacement magnitudes.

Original language	English
Pages (from-to)	100-103
Number of pages	4
Journal	Scripta Materialia
Volume	115
Early online date	25 Jan 2016
DOIs	https://doi.org/10.1016/j.scriptamat.2015.10.033
Publication status	Published - 1 Apr 2016

Keywords

Thermal barrier coating
Three-dimensional tomography
Synchrotron radiation
Cyclic oxidation
Digital volume correlation

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10.1016/j.scriptamat.2015.10.033

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Khoshkhou, D., Mostafavi, M., Reinhard, C., Taylor, MP., Rickerby, D. S., Edmonds, IM., Evans, H. E., Marrow, J., & Connolly, B. (2016). Three-dimensional displacement mapping of diffused Pt thermal barrier coatings via synchrotron X-ray computed tomography and digital volume correlation. Scripta Materialia, 115, 100-103. https://doi.org/10.1016/j.scriptamat.2015.10.033

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title = "Three-dimensional displacement mapping of diffused Pt thermal barrier coatings via synchrotron X-ray computed tomography and digital volume correlation",

abstract = "A progressive study of the three-dimensional deformation field within a γ/γ′ thermal barrier coating following cyclic oxidation at 1200 °C is presented, observed using synchrotron X-ray micro-computed tomography and analysed by digital volume correlation. Oxide thickening and bond coat creep displacements are quantified as a function of exposure time at temperature. Linear gradients of these displacements are measured both in-plane and normal to the oxide layer. The first thermal cycle shows the most displacement changes; destructive sectioning confirms the DVC-calculated displacement magnitudes.",

keywords = "Thermal barrier coating, Three-dimensional tomography, Synchrotron radiation, Cyclic oxidation, Digital volume correlation",

author = "Danial Khoshkhou and Mahmoud Mostafavi and Christina Reinhard and MP Taylor and Rickerby, \{David S\} and IM Edmonds and H.E. Evans and James Marrow and Brian Connolly",

year = "2016",

month = apr,

day = "1",

doi = "10.1016/j.scriptamat.2015.10.033",

language = "English",

volume = "115",

pages = "100--103",

journal = "Scripta Materialia",

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TY - JOUR

T1 - Three-dimensional displacement mapping of diffused Pt thermal barrier coatings via synchrotron X-ray computed tomography and digital volume correlation

AU - Khoshkhou, Danial

AU - Mostafavi, Mahmoud

AU - Reinhard, Christina

AU - Taylor, MP

AU - Rickerby, David S

AU - Edmonds, IM

AU - Evans, H.E.

AU - Marrow, James

AU - Connolly, Brian

PY - 2016/4/1

Y1 - 2016/4/1

N2 - A progressive study of the three-dimensional deformation field within a γ/γ′ thermal barrier coating following cyclic oxidation at 1200 °C is presented, observed using synchrotron X-ray micro-computed tomography and analysed by digital volume correlation. Oxide thickening and bond coat creep displacements are quantified as a function of exposure time at temperature. Linear gradients of these displacements are measured both in-plane and normal to the oxide layer. The first thermal cycle shows the most displacement changes; destructive sectioning confirms the DVC-calculated displacement magnitudes.

AB - A progressive study of the three-dimensional deformation field within a γ/γ′ thermal barrier coating following cyclic oxidation at 1200 °C is presented, observed using synchrotron X-ray micro-computed tomography and analysed by digital volume correlation. Oxide thickening and bond coat creep displacements are quantified as a function of exposure time at temperature. Linear gradients of these displacements are measured both in-plane and normal to the oxide layer. The first thermal cycle shows the most displacement changes; destructive sectioning confirms the DVC-calculated displacement magnitudes.

KW - Thermal barrier coating

KW - Three-dimensional tomography

KW - Synchrotron radiation

KW - Cyclic oxidation

KW - Digital volume correlation

U2 - 10.1016/j.scriptamat.2015.10.033

DO - 10.1016/j.scriptamat.2015.10.033

M3 - Article (Academic Journal)

SN - 1359-6462

VL - 115

SP - 100

EP - 103

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Three-dimensional displacement mapping of diffused Pt thermal barrier coatings via synchrotron X-ray computed tomography and digital volume correlation

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