Magnetic Testing of Power Plant Steel Deterioration

Abstract:

Nowadays, there is increasing importance of the remaining life time estimation of engineering structures. In this work the thermal shock fatigue process induced deterioration of the three different power plant steels was investigated. The tested steels are widely used as steam pipeline base material of power plants. The applied thermal shock fatigue test can model the material degradation due to long term service in high temperature environment. A special AC magnetometer was designed and used for the magnetic measurements at the Department of Materials Science and Engineering of BUTE. In this paper a new high sensitivity magnetic measurement is presented for controlling the thermal shock fatigue deterioration. This measurement technique was developed for non-destructive testing of pipelines and pressure vessels of steam power plants.

• Periodical: Materials Science Forum (Volume 792)
• Pages: 183-188
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.792.183
• Online since: August 2014
• Authors: István Mészáros*, János Ginsztler
• Keywords: AC Magnetic Testing, Adaptive Testing, Material Deterioration, NDT, Remnant Life Time Estimation, Thermal Shock Fatigue

References

[1] J. Ginsztler, L. Dévényi: European J. of Mechanical Engineering, Vol. 36 (1991), p.251.

[2] R.P. Skelton: High temperature fatigue: Properties and Prediction, 1987, pp.123-124.

[3] J. Ginsztler, R.P. Skelton: Component reliability under creep-fatigue conditions, 1998, pp.6-7.

DOI: 10.1007/978-3-7091-2516-8

[4] P. J. Szabó: Mat. Sci. Eng. A 387-389C (2004) p.710.

[5] N. Mohapatra, N.R. Bandyopadhyay, M.K. Gunjan, A. Mitra: Journal of Magnetism and Magnetic Materials Vol. 322 (2010) p.589.

[6] S. W. Nam, S. C. Lee, J.M. Lee: Nuclear Engineering and Design, (1995) p.213.

[7] S.K. Das, A. Joarder, A. Mitra: NDT&E International Vol. 37 (2007) p.243.

[8] G. Vértesy, T. Uchimoto, I. Tomáš, T. Takagi: J. Magn. Magn. Mater. Vol. 322 (2010) p.3117.

[9] G. Vértesy, I. Tomáš T. Uchimoto, T. Takagi: NDT & E International, Vol. 47 (2012) p.51.

[10] J. Dobránszky – P. J. Szabó: Mat. Sci. Forum, Vol. 414-415 (2003), p.189.

[11] G. Vertesy, A. Gasparics: Materials Science Testing and Inf. Vol. 414(4) (2004) p.343.

[12] E. Hristoforou, K. Kosmas: International Journal of Applied Electromagnetics and Mechanics, Vol. 25 (2007) p.287.

[13] B. Augustyniak, L. Piotrowski, M. Chmielewski, K. Kosmas, E. Hristoforou: IEEE Trans. Mag., Vol. 46 (2010) p.544.

DOI: 10.1109/tmag.2009.2033340

[14] I. Mészáros, J. Ginsztler: Key Engineering Materials Vols. 345-346 (2007) p.1283.

[15] I. Mészáros, J. Ginsztler: Materials Science Forum Vols. 537-538 (2007) p.419.

[16] I. Mészáros: Materials Science Forum Vols. 414-415 (2003) p.275.