Title of article
Impact properties of NIFS-HEAT-2 (V–4Cr–4Ti) after YAG laser welding and neutron irradiation at 563 K
Author/Authors
Nagasaka، نويسنده , , Takuya and Heo، نويسنده , , Nam-Jin and Muroga، نويسنده , , Takeo and Nishimura، نويسنده , , Arata and Watanabe، نويسنده , , Hideo and Narui، نويسنده , , Minoru and Shinozaki، نويسنده , , Kenji، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2004
Pages
5
From page
1539
To page
1543
Abstract
Weld specimens of the reference low activation vanadium alloy, NIFS-HEAT-2, were irradiated up to the neutron fluence of 4.5 × 1023 nm−2 (0.08 dpa) at 563 K in JMTR. The weld metal showed larger irradiation hardening than that of the base metal, and the weld metal showed an embrittlement at 77 K. However, irradiation hardening at the weld metal was effectively reduced by post weld heat treatment at 873 and 1223 K. Mechanisms of irradiation hardening, and behavior of C, N and O impurities in the weld metal was discussed, based on the characterization of radiation defects.
Journal title
Journal of Nuclear Materials
Serial Year
2004
Journal title
Journal of Nuclear Materials
Record number
1361048
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