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research article

Combining neutron diffraction and imaging for residual strain measurements in a single crystal turbine blade

Pierret, S.
•
Evans, A.
•
Paradowska, A. M.
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2012
Ndt & E International

Neutron diffraction is a technique often used for the non-destructive characterization of residual stresses in engineering materials and components. Measuring stresses within partially hollow objects with complex internal geometry however is challenging due to the difficulties of accurately placing the measurement gage volume in relation to the internal structures. In this study this difficulty is overcome combining surface metrology and neutron tomography to guide the neutron diffraction measurements. Using this technique the triaxial residual strain variations across the airfoil in a single crystal nickel-based superalloy turbine blade have been measured. (C) 2011 Elsevier Ltd. All rights reserved.

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Type
research article
DOI
10.1016/j.ndteint.2011.08.009
Web of Science ID

WOS:000298125900006

Author(s)
Pierret, S.
Evans, A.
Paradowska, A. M.
Kaestner, A.
James, J.
Etter, T.
Van Swygenhoven, H.
Date Issued

2012

Published in
Ndt & E International
Volume

45

Start page

39

End page

45

Subjects

Non-destructive

•

Diffraction

•

Tomography

•

Single crystal Ni-based superalloys

•

Stress

•

Beam

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
UPSWYG  
Available on Infoscience
February 16, 2012
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/77814
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