SYMPOSIA PAPER Published: 01 January 1987
STP33853S

Effect of Irradiation on Carbide Evolution in a Pure Fe-2¼Cr-1Mo Ferritic Alloy

Source

Ion irradiation was observed to accelerate the kinetics of the carbide evolution in a “pure” Fe-2¼Cr-1Mo steel. The type and structure of the phases were unchanged by irradiation compared to thermal annealing. The transformation kinetics of Fe3C to M7C3 and the independent nucleation of Mo2C were both enhanced by the ion irradiation. The observed irradiation enhancement of the kinetics however did not follow a predicted trend based on a simple radiation enhanced diffusion model. There is no obvious explanation for this discrepancy except that mechanisms in addition to enhanced diffusion influence the complex transformation process.

Author Information

Brimhall, JL
Battelle-Northwest, Richland, WA
Simonen, EP
Battelle-Northwest, Richland, WA
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Details
Developed by Committee: E10
Pages: 713–720
DOI: 10.1520/STP33853S
ISBN-EB: 978-0-8031-5016-4
ISBN-13: 978-0-8031-0962-9