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Microstructure Evolution in Charged Particle Irradiated 316 SS Modified to Reduce Radiation Damage

Published online by Cambridge University Press:  21 March 2011

J. Gan ,
E. P. Simonen ,
D. J. Edwards ,
S. M. Bruemmer ,
B. H. Sencer ,
L. Fournier  and
G. S. Was
J. Gan
Affiliation:
Pacific Northwest National Laboratory, Richland, WA 99352, USA
E. P. Simonen
Affiliation:
Pacific Northwest National Laboratory, Richland, WA 99352, USA
D. J. Edwards
Affiliation:
Pacific Northwest National Laboratory, Richland, WA 99352, USA
S. M. Bruemmer
Affiliation:
Pacific Northwest National Laboratory, Richland, WA 99352, USA
B. H. Sencer
Affiliation:
The University of Michigan, Ann Arbor, MI 48109, USA
L. Fournier
Affiliation:
The University of Michigan, Ann Arbor, MI 48109, USA
G. S. Was
Affiliation:
The University of Michigan, Ann Arbor, MI 48109, USA
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Abstract

The objective of this work is to investigate the addition of misfit elements in both size and mass on the evolution of irradiated microstructure in 316 SS. Alloys were modified by the addition of Pt and Hf to suppress the radiation damage. Pt and Hf were added as a lattice perturbation to catalyze defect recombination within the early stage of cascade formation and defect migration. Irradiations were conducted with 5 MeV Ni-ions at 500 °C to doses up to 50 dpa or with 3.2 MeV protons at 400 °C. Microstructures were characterized using transmission electron microscopy. While no beneficial effect was seen for Pt addition, Hf appears to effectively alter the microstructural response to irradiation.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 650: Symposium R – Microstructural Processes in Irradiated Materials-2000 , 2000 , R2.6
Copyright
Copyright © Materials Research Society 2001

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References

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