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

Pierret, S.; Evans, A.; Paradowska, A. M.; Kaestner, A.; James, J.; Etter, T. and Swygenhoven, H. Van (2012). Combining neutron diffraction and imaging for residual strain measurements in a single crystal turbine blade. NDT & E International, 45(1) pp. 39–45.

DOI (Digital Object Identifier) Link: http://dx.doi.org/10.1016/j.ndteint.2011.08.009
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Abstract

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.

Item Type: Journal Article
Copyright Holders: 2011 Elsevier Ltd.
ISSN: 0963-8695
Keywords: engineering; non-destructive; diffraction; tomography; single crystal Ni-based superalloys
Academic Unit/Department: Mathematics, Computing and Technology > Engineering & Innovation
Item ID: 29623
Depositing User: Jon James
Date Deposited: 29 Sep 2011 15:57
Last Modified: 10 Dec 2012 11:17
URI: http://oro.open.ac.uk/id/eprint/29623
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