Nondestructive Characterization of a Deformed Steel Using Positron Annihilation

  • Yong Ki Park
  • Jae Ok Lee
  • Sekyung Lee

Summary

Positron annihilation spectroscopy is a relatively new NDE technique for characterizing the atomic scale lattice defects like vacancies and dislocations. Positron annihilation lifetime and Doppler broadening line-shape were measured and analyzed in cold rolled low carbon steel. Both positron lifetime and Doppler broadening line shape reflect the change in the microstructure and the substructure of the specimens sensitively.

Keywords

Attenuation Ferrite 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1989

Authors and Affiliations

  • Yong Ki Park
    • 1
  • Jae Ok Lee
    • 1
  • Sekyung Lee
    • 1
  1. 1.Nondestructive Evaluation LaboratoryKorea Standards Research InstituteTaedok Science TownRepublic of Korea

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