Magnetic testing of creep deterioration

I. Mészáros, J. Ginsztler

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this work a new magnetometer setup and a novel model based data evaluation technique was used to determine the creep damage in ferritic power plant steel. The tested material was lCr-0.5Mo-0.25V ferritic steel which is commonly used as pipeline base material of steam generators in power plants. It is commonly accepted that a combined form of fatigue and the creep processes cause the deterioration of this structural parts due to long time elevated temperature service. Nowadays, there is increasing need for remaining lifetime estimation of these engineering structures. In this paper, the variation of magnetization curves of Cr-Mo-V ferritic steel due to creep measured and the relation between creep damage and the magnetic property changes is discussed. A new data evaluation technique is presented which is based on the hyperbolic model of magnetization. A magnetic descriptor was derived from the hyperbolic model which can be determined from the initial part of the normal magnetization curve. The introduced parameter and evaluation technique seems to be especially useful for magnetic nondestuctive remanent lifetime evaluation.

Original languageEnglish
Title of host publicationProcedia Engineering
Pages990-995
Number of pages6
Volume10
DOIs
Publication statusPublished - 2011
Event11th International Conference on the Mechanical Behavior of Materials, ICM11 - Como, Italy
Duration: Jun 5 2011Jun 9 2011

Other

Other11th International Conference on the Mechanical Behavior of Materials, ICM11
CountryItaly
CityComo
Period6/5/116/9/11

Fingerprint

Deterioration
Creep
Magnetization
Ferritic steel
Testing
Power plants
Magnetometers
Steam generators
Magnetic properties
Pipelines
Fatigue of materials
Steel
Temperature

Keywords

  • Creep
  • Deterioration
  • Hyperbolic model
  • Nondestructive evaluation

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Mészáros, I., & Ginsztler, J. (2011). Magnetic testing of creep deterioration. In Procedia Engineering (Vol. 10, pp. 990-995) https://doi.org/10.1016/j.proeng.2011.04.163

Magnetic testing of creep deterioration. / Mészáros, I.; Ginsztler, J.

Procedia Engineering. Vol. 10 2011. p. 990-995.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Mészáros, I & Ginsztler, J 2011, Magnetic testing of creep deterioration. in Procedia Engineering. vol. 10, pp. 990-995, 11th International Conference on the Mechanical Behavior of Materials, ICM11, Como, Italy, 6/5/11. https://doi.org/10.1016/j.proeng.2011.04.163
Mészáros I, Ginsztler J. Magnetic testing of creep deterioration. In Procedia Engineering. Vol. 10. 2011. p. 990-995 https://doi.org/10.1016/j.proeng.2011.04.163
Mészáros, I. ; Ginsztler, J. / Magnetic testing of creep deterioration. Procedia Engineering. Vol. 10 2011. pp. 990-995
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