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Analysis of Deformation-Induced Microstructure using Positron Annihilation: Dislocations and Vacancies in Nickel and Steel

: Dlubek, G.; Sourkov, A.; Depetasse, S.; Meyendorf, N.

Bilde-Sorensen, J.B.; Carstensen, J.V.; Hansen, N. ; Technical University of Denmark -DTU-, Riso National Laboratory for Sustainable Energy:
Deformation-Induced Microstructures: Analysis and Relation to Properties
Roskilde: Riso National Laboratory, 1999
ISSN: 0907-0079
ISBN: 87-550-2592-7
International Symposium on Materials Science <20, 1999, Roskilde>
Conference Paper
Fraunhofer IZFP ()
analysis; Mikrostruktur; nickel; Stahl

Positron annihilation lifetime (PAL) spectroscopy is used to study the concentration of vacancies, vacancy clusters and dislocations as a function of strain during tensile straining of austentic steel. The annealing of defects in cold-rolled nickel and diluted NiSb alloys is also studied. Furthermore, the general ideas of studying defects with positrons are briefly described.