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  4. Characterization of microstructure of plastically deformed and and thermally treated carbon steel by means of positron annihilation life-time spectroscopy in comparison with micromagnetic methods
 
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1996
Conference Paper
Title

Characterization of microstructure of plastically deformed and and thermally treated carbon steel by means of positron annihilation life-time spectroscopy in comparison with micromagnetic methods

Abstract
Positron annihilation is a very sensitive method for detecting crystal lattice defects. Using positron life-time measurements separate information can be obtained about deslocations, vacancies and vacancy clusters in meatls. Also micromagnetics is very sensitive to the microstructure in steels if they are ferromagnetic. The paper compares positron life-time measurement and micromagnetics during thermal annealing of plastically deformed pure nickel and a carbon steel. The advantage of positron annihilation is insensitivity to macroscopic residual stresses, the disadvantage is a long measuring time. Both methods can give complemantary information about the microstructure of the material
Author(s)
Meyendorf, N.
Somieski, B.
Krause, R.
Altpeter, I.
Gessner, M.
Mainwork
Nondestructive characterization of materials VII. Pt.2  
Conference
International Symposium on Nondestructive Characterization of Materials 1995  
Language
English
Fraunhofer-Institut für Zerstörungsfreie Prüfverfahren IZFP  
Keyword(s)
  • annealing

  • Barkhausen noise

  • Barkhausen-Rauschen

  • carbon steel

  • cold rolling

  • crystal lattice defect

  • micromagnetic

  • Mikromagnetik

  • nickel

  • plastic deformation

  • plastische Verformung

  • positron annihilation

  • Positronenannihilation

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