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Miniature Charpy impact test results for the irradiated ferritic alloys HT-9 and modified 9Cr-1Mo

Wenli Hu, D.S. Gelles

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Abstract

Impact tests of irradiated Charpy specimens made of ferritic alloys were conducted at temperatures from -65/sup 0/C to 250/sup 0/C. The specimens involve four different material stocks, namely, HT-9 base metal, HT-9 weld metal, HT-9 heat-affected-zone (HAZ) and modified 9Cr-1Mo base metal. The specimens were irradiated in EBR-II to a peak exposure of approximately 13 dpa at temperatures of 390, 450, 500 and 550/sup 0/C. Specimens made of unirradiated HT-9 base metal and modified 9Cr-1Mo base metal were also tested.

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What this paper is about

Impact tests of irradiated Charpy specimens made of ferritic alloys were conducted at temperatures from -65/sup 0/C to 250/sup 0/C. The specimens involve four different material stocks, namely, HT-9 base metal, HT-9 weld metal, HT-9 heat-affected-zone (HAZ) and modified 9Cr-1Mo base metal. The specimens were irradiated in EBR-II to a peak exposure of approximately 13 dpa at temperatures of 390, 450, 500 and 550/sup 0/C. Specimens made of unirradiated HT-9 base metal and modified 9Cr-1Mo base metal were also tested.

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Available abstract

Impact tests of irradiated Charpy specimens made of ferritic alloys were conducted at temperatures from -65/sup 0/C to 250/sup 0/C. The specimens involve four different material stocks, namely, HT-9 base metal, HT-9 weld metal, HT-9 heat-affected-zone (HAZ) and modified 9Cr-1Mo base metal. The specimens were irradiated in EBR-II to a peak exposure of approximately 13 dpa at temperatures of 390, 450, 500 and 550/sup 0/C. Specimens made of unirradiated HT-9 base metal and modified 9Cr-1Mo base metal were also tested.

Key concepts: Charpy impact test, Base metal, Materials science, Irradiation, Metallurgy, Metal, Base (topology), Welding

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