A Comparison of Strain Measurements on an Inertia Friction Weld Using the ENGIN-X and SALSA Neutron Strain Mapping Instruments

Abstract:

Article Preview

In this study we present a direct comparison between residual strain measurements carried out on the same inertia friction weld using ENGIN-X at ISIS, UK and the new strain scanner SALSA at ILL, France. ENGIN-X is a time of flight (TOF) instrument, which receives neutrons from a neutron spallation source, while the SALSA Strain-Imager, a high resolution diffractometer, is based at a research reactor source with a continuous neutron flux and is operated with a constant wavelength. The purpose of this study was to demonstrate a confidence in crosscomparing future strain measurements to be performed at ENGIN-X and SALSA. Measurements were carried out on medium size inertia friction welded nickel superalloy test-piece, which show no significant crystallographic texture across the weld line. The results demonstrate that, even though residual stresses determined on SALSA only rely on a single peak analysis (in this case the (111) reflection), the results show excellent agreement with the measurements carried out on ENGIN-X, where strain is determined from multi-peak Rietveld analysis.

Info:

Periodical:

Materials Science Forum (Volumes 524-525)

Edited by:

W. Reimers and S. Quander

Pages:

393-398

DOI:

10.4028/www.scientific.net/MSF.524-525.393

Citation:

M. Karadge et al., "A Comparison of Strain Measurements on an Inertia Friction Weld Using the ENGIN-X and SALSA Neutron Strain Mapping Instruments", Materials Science Forum, Vols. 524-525, pp. 393-398, 2006

Online since:

September 2006

Export:

Price:

$35.00

[1] M.T. Hutchings, P.J. Withers, T.M. Holden and T. Lorentzen, Introduction to the Characterisation of Residual Stresses by Neutron Diffraction (2005). London: CRC Press, Taylor & Francis.

[2] T.M. Holden, R.A. Holt, A.P. Clarke, Materials Science and Engineering A, 246 (1998), p.180.

[3] H.J. Stone, T.M. Holden, R.C. Reed, Scripta Materialia, 40, 3 (1999), p.353.

[4] H.M. Rietveld, Journal of Applied Crystallography, 2 (1969), p.65.

[5] M.R. Daymond and N.W. Bonner, Materials Science and Engineering A, 340 (2003), p.272.

[6] M. Preuss, J. Quinta da Fonseca, I. Kyriakoglou, P.J. Withers and G.J. Baxter, TMS Superalloy 2004, p.477.

[7] J.A. Dann, M.R. Daymond, L. Edwards, J.A. James and J.R. Santisteban, Physica B: Condensed Matter, 350 (2004), p E511.

[8] M. Preuss, J.W.L. Pang, P.J. Withers and G.J. Baxter, Metallurgical and Materials Transactions, 33A (2002) p.3227.

[9] T. Pirling, G. Bruno and P.J. Withers, SALSA - A New Instrument for Strain Imaging in Engineering Materials & Components. Materials Science and Engineering A, (2006), accepted for publication.

DOI: 10.1016/j.msea.2006.04.083

[10] M. Preuss and M. Daymond, to be submitted to Acta Materialia.

[11] M. Karadge, B. Grant, A. Hoerling, P J. Withers, M. Preuss and G. Baxter, to be submitted to Materials Science and Engineering A.

In order to see related information, you need to Login.