Magnetic detection of creep deterioration

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 1Cr-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 publicationMaterials Science Forum
Pages325-330
Number of pages6
Volume659
DOIs
Publication statusPublished - 2010
Event7th Hungarian Conference on Materials Science - Balatonkenese, Hungary
Duration: Oct 11 2009Oct 13 2009

Publication series

NameMaterials Science Forum
Volume659
ISSN (Print)02555476

Other

Other7th Hungarian Conference on Materials Science
CountryHungary
CityBalatonkenese
Period10/11/0910/13/09

Fingerprint

deterioration
Deterioration
Creep
Magnetization
evaluation
Ferritic steel
steels
power plants
magnetization
Power plants
damage
life (durability)
Steel
boilers
Magnetometers
Steam generators
curves
magnetometers
Magnetic properties
Pipelines

Keywords

  • Cr-Mo-V ferritic steel
  • Creep deterioration
  • Hyperbolic model
  • Magnetic hysteresis
  • Nondestructive testing

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Mészáros, I. (2010). Magnetic detection of creep deterioration. In Materials Science Forum (Vol. 659, pp. 325-330). (Materials Science Forum; Vol. 659). https://doi.org/10.4028/www.scientific.net/MSF.659.325

Magnetic detection of creep deterioration. / Mészáros, I.

Materials Science Forum. Vol. 659 2010. p. 325-330 (Materials Science Forum; Vol. 659).

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

Mészáros, I 2010, Magnetic detection of creep deterioration. in Materials Science Forum. vol. 659, Materials Science Forum, vol. 659, pp. 325-330, 7th Hungarian Conference on Materials Science, Balatonkenese, Hungary, 10/11/09. https://doi.org/10.4028/www.scientific.net/MSF.659.325
Mészáros I. Magnetic detection of creep deterioration. In Materials Science Forum. Vol. 659. 2010. p. 325-330. (Materials Science Forum). https://doi.org/10.4028/www.scientific.net/MSF.659.325
Mészáros, I. / Magnetic detection of creep deterioration. Materials Science Forum. Vol. 659 2010. pp. 325-330 (Materials Science Forum).
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