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HomeDefect and Diffusion ForumDefect and Diffusion Forum Vol. 294Acoustic Emission during Isothermal Oxidation of...

Acoustic Emission during Isothermal Oxidation of 2.25Cr-1Mo Steel

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Abstract:

Acoustic emission (AE) signals, obtained during the isothermal oxidation of 2.25Cr-1Mo steel at 773 K, 873 K, 973 K and 1073 K, have been analyzed. The results indicated that the rate of occurrence of AE events and consequently the total number of AE events generated during isothermal oxidation at these temperatures increased with an increase in the oxidation rate. Variation in the temperature of oxidation did not show any variation in the root mean square (RMS) level of the AE signals. The b-parameters obtained from a logarithmic cumulative amplitude distribution plot indicated that the strength of the AE signals did not change during isothermal oxidation carried out at these temperatures. Different event rates, and consequently the difference in the total number of AE events generated during isothermal oxidation at these temperatures, are indicative of the increased rate of energy release associated with the growth of oxide layers formed at higher temperatures. The rate of energy release has been found to be higher for higher temperatures of oxidation.

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Defects and Diffusion, Theory and Simulation

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Periodical:

Defect and Diffusion Forum (Volume 294)

Pages:

93-104

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.294.93

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Online since:

December 2009

Authors:

B.B. Jha, Barada Kanta Mishra, S.N. Ojha

Keywords:

2.25Cr-1Mo Steel, Acoustic Emission (AE), Isothermal Oxidation

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© 2009 Trans Tech Publications Ltd. All Rights Reserved

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[1] H.N.G. Wadley, C.B. Scruby and J.H. Speake: International Metals Reviews Vol. 3 (1980), p.41.

[2] C.R. Heiple and S.H. Carpenter: Journal of Acoustic Emission Vol. 6B (1987), p.177.

[3] D. Renusch and M. Schutze: Materials at High Temperatures Vol 22 (2005), p.35.

[4] C. Coddet, G. Beranger and J.F. Cretien, in: Materials and Coating to Resist High Temperature Corrosion edited by D. Holmes and A. Rahmel p.175, Applied Science Publishers Ltd., London (1978).

[5] C. Coddet, G. de Barros and G. Beranger, in: Corrosion and Mechanical Stress at high temperature edited by V. Guttman and M. Merz p.417, Applied Science Publishers Ltd., London (1981).

[6] C. Coddet, G. de Barros and G. Beranger, in: Proceedings International Congress on Metallic Corrosion, p.66, Toronto, Canada (1984).

[7] J.C. Baram, D. Itzhak and M. Rosen: Journal of Testing and Evaluation Vol. 7 (1979), p.172.

[8] A. Ashary, G.H. Meier and F.S. Pettit, in: Proceedings Conference on High temperature Protective Coatings, p.105, Atlanta, GA (1983).

[9] H. Jonas and J.A. Golczewski: J. Nuel. Mat. Vol. 120 (1984), p.272.

[10] D.J. Hall, S. Booth and W.T. Evans: Material Science and Technology Vol. 6 (1990), p.53.

[11] Li Tiefan and Li Meishuan: Material Science and Engineering Vol. Al20 (1989), p.235.

[12] Li Tiefan and Li Meishuan: Material Science and Engineering Vol. A120 (1989), p.239.

[13] W. Christl, A. Rahmel and M. Schutze: Materials Science and Engineering Vol. 87 (1987), p.289.

[14] W. Christl, A. Rahmel and M. Schutze: Oxidation of Metals Vol. 31 (1989), p.1.

[15] W. Christl, A. Rahmel and M. Schutze: Oxidation of Metals Vol. 31 (1989), p.35.

[16] H.J. Schmutzler and H.J. Grabke: Oxidation of Metals Vol. 39 (1993), p.15.

[17] S. Rajendran Pillai, N. Sivai Barasi, H.S. Khatak and J.B. Gnanamoorthy: Oxidation of Metals Vol. 49 (1998), p.509.

DOI: 10.1023/a:1018846828114

[18] S. Rajendran Pillai, N. Sivai Barasi and H.S. Khatak: Oxidation of Metals Vol. 53 (2000), p.193.

DOI: 10.1023/a:1004595016655

[19] Claas Bruns and M. Schutze: Oxidation of Metals Vol. 55 (2001), p.35.

[20] A.S. Khanna and J.B. Gnanamoorthy: Oxidation of Metals Vol. 18 (1982), p.315.

[21] A.S. Khanna and J.B. Gnanamoorthy: Oxidation of Metals Vol. 23 (1985), p.17.

[22] G.C. Wood and F.H. Stott: Material. Science and Technology Vol. 3 (1987), p.519.

[23] N.J. Simns and J.A. Little: Material Science and Technology Vol. 4 (1988), p.1133.

[24] U.R. Evans: The Corrosion and Oxidation of Metals: Scientific Principles & Practical Applications (Edward Arnold Publishers Ltd., London 1971).

[25] A.G. Evans and M. Lintzer: Annual Review of Material Science Vol. 7 (1977), p.179.