Post-Irradiation Deformation Microstructures in Fe-9Cr

DS Gelles; ML Hamilton; R Schäublin

doi:10.1520/STP10554S

SYMPOSIA PAPER Published: 01 January 2001

STP10554S

Post-Irradiation Deformation Microstructures in Fe-9Cr

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The deformed microstructures of both irradiated and unirradiated Fe-9Cr uniaxial tensile specimens have been examined to identify controlling mechanisms. Deformation following irradiation is found to occur in poorly defined channels, causing formation of discrete steps at surfaces and delineated by nonuniformly distributed highly elongated voids. Deformation is by motion of a∕2<111> dislocations, which interact with and decompose irradiation-induced a<100> loops. The structure formed after extensive deformation consists of highly complex cell walls and moderate densities of individual slip dislocations.

Author Information

Gelles, DS

PNNL Materials Research Department, Richland, WA

Hamilton, ML

PNNL Materials Research Department, Richland, WA

Schäublin, R

EPFL-CRPP Fusion Technology, Villigen PSI, Switzerland

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Details

Developed by Committee: E10

Pages: 523–534

DOI: 10.1520/STP10554S

ISBN-EB: 978-0-8031-5454-4

ISBN-13: 978-0-8031-2878-1

Post-Irradiation Deformation Microstructures in Fe-9Cr

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