SYMPOSIA PAPER Published: 01 January 1990
STP49466S

Charpy Impact Test Results of Ferritic Alloys Irradiated to 10 dpa at 55°C

Miniature Charpy specimens of HT-9 in base metal, weld metal, and heat affected zone (HAZ) metal conditions, and 9Cr-1Mo in base metal and weld metal conditions have been tested following irradiation in the High Flux Isotope Reactor (HFIR) at 55°C to ≈5 and 10 dpa. All specimen conditions are found to have degraded properties (both DBTT and USE). 9Cr-Mo degraded more than HT-9, and weld metal performed worse than base metal, which performed worse than HAZ material. As a function of dose, property degradation was approximately linear, indicating that degradation response had not saturated by 10 dpa.

Author Information

Hu, Wan-Liang
Innovative Technology Laboratory, Richland, WA
Gelles, David, S.
Pacific Northwest Laboratory, Richland, WA
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Details
Developed by Committee: E10
Pages: 453–458
DOI: 10.1520/STP49466S
ISBN-EB: 978-0-8031-8887-7
ISBN-13: 978-0-8031-1266-7