The Measurement of Stresses within Oxides Produced on Austenitic and Ferritic Steels Using Raman Spectroscopy

Abstract:

Article Preview

Raman spectroscopy has been used by various workers to provide a measure of the stresses within the oxides grown on metal substrates at high temperatures. In this paper, we consider thermally grown oxides produced on a Type 316 austenitic stainless steel and an iron 3% silicon ferritic steel. The oxides were grown in air at temperatures of 950oC and 650oC respectively over a range of times. These oxides have been characterised by producing cross-sections using focused ion beam milling. The variation of the Raman spectra wave number (He, Ne laser; λ = 633nm) for the oxides produced on the polycrystalline austenitic stainless steel and the ferritic steel were measured as a function of oxide thickness. This shift in wave number was a function of stress. For a fixed oxide thickness on the stainless steel substrate the specimen has been subject to a bending force. A back face strain gauge fixed to the metal substrate provided a measure of the applied strain. The peak wave number varied with applied strain. The results are discussed with respect to the potential to characterise the stresses produced in thermally grown oxides and as a tool to monitor applied stress.

Info:

Periodical:

Materials Science Forum (Volumes 524-525)

Edited by:

W. Reimers and S. Quander

Pages:

957-962

DOI:

10.4028/www.scientific.net/MSF.524-525.957

Citation:

G. Hilson et al., "The Measurement of Stresses within Oxides Produced on Austenitic and Ferritic Steels Using Raman Spectroscopy", Materials Science Forum, Vols. 524-525, pp. 957-962, 2006

Online since:

September 2006

Export:

Price:

$35.00

[1] M. Jepson and R.L. Higginson. The use of EBSD to study the microstructural development of oxide scales on 316 stainless steel. Accepted for publication in Materials at High Temperatures.

[2] P.E.J. Flewitt. Structural integrity assessment of high integrity structures and components: user experience. Mechanical Behaviour of Materials ed. A. Bakker. Delft University Press (Delft 1995).

[3] L. Grabner. Spectroscopic technique for the measurement of residual stress in sintered Al2O3. Journal of Applied Physics. Vol. 49 (1978), pp.580-583.

DOI: 10.1063/1.324682

[4] Q. Ma and D.R. Clarke. Stress measurement in single-crystal and polycrystalline ceramics using their optical fluorescence. Journal of the American Ceramic Society. Vol. 76 (1993), pp.1433-1440.

[5] J. Mougin, N. Rosman, G. Lucazeau and A. Galerie. In situ monitoring of chromium oxide scale growth for stress determination. Journal of Raman Spectroscopy Vol. 32 (2001), pp.739-744.

DOI: 10.1002/jrs.734

[6] J. Mougin, T. Le Bihan, and G. Lucazeau. High-pressure study of Cr2O3 obtained by high temperature oxidation by X-ray diffraction and Raman spectroscopy. Journal of Physics and Chemistry of Solids. Vol. 62 (2001), pp.553-563.

DOI: 10.1016/s0022-3697(00)00215-8

[7] M. Bradley, Curve fitting in Raman and IR spectroscopy: basic theory of line shapes and applications. Thermo Electron Corporation. Madison, WI, USA, (2004).

[8] A. Galerie, F. Toscan, M. Dupeux, J. Mougin, G. Lucazeau, C. Valot, A. -M. Huntz, and L. Antoni. Stress and adhesion of chromia-rich oxide scales on ferritic stainless steels in relation with spallation. Materials Research. Vol. 7 (2004).

DOI: 10.1590/s1516-14392004000100012

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