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Microstructures in Neutron Irradiated Fe-Cr-Ni-P-Ti Model Austenitic Alloys Doped with ¹⁰B

Muroga, T
Professor,National Institute for Fusion Science,

Watanabe, H
Associate Professor and Professor,Research Institute for Applied Mechanics, Kyushu University,

Yoshida, N
Associate Professor and Professor,Research Institute for Applied Mechanics, Kyushu University,

Kurishita, H
Associate Professor,Institute for Materials Research, Tohoku University,

Pages: 12    Published: Jan 1999

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Source: STP1325-EB

Abstract

Fe-16Cr-17Ni ternary alloy and those with addition of 0.024P, 0.1P and 0.1P+0.25Ti were irradiated with fast neutrons in FFTF/MOTA at 793 K and 874 K to 33 dpa and 60 dpa. For the purpose of investigating helium production effect, two levels of ¹⁰B were doped for each alloy. The microstructures and their relation with tensile properties were examined. The yield stress change was correlated with the density of phosphide precipitates.

Keywords:
austenitic alloys, phosphorus addition effects, void swelling, yield stress change, phosphides

Paper ID: STP13897S
Committee/Subcommittee: E10.07
DOI: 10.1520/STP13897S
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