Irradiation Effects in Ni–17Mo–7Cr Alloy Bombarded with MeV Au Ions
来源期刊:Acta Metallurgica Sinica2015年第7期
论文作者:Peng Guo Jian-Ming Xue Long Yan Qing Huang Zhi-Jun Li Ping Huai Xing-Tai Zhou
文章页码:903 - 908
摘 要:Irradiation effects in Ni–17Mo–7Cr alloy have been systematically investigated by using 3 Me V Au ions at different fluences ranging from 8 9 1013cm-2to 2.3 9 1015cm-2,corresponding to doses of 1–30 dpa.The results indicated that sample microstrain increased gradually from 0.14 to 0.22% as dose increased from 0 to 30 dpa.Besides,the nanohardness of Ni–17Mo–7Cr alloy increased with irradiation dose until 10 dpa,and then,softening effect became dominant while further increasing dose to 30 dpa.After being irradiated at room temperature,the swelling rate of Ni–17Mo–7Cr alloy was found to be around 0.04% per dpa.These data are helpful in estimating the irradiation resistance of this newly developed Ni–17Mo–7Cr alloy in nuclear energy systems.
Peng Guo1,Jian-Ming Xue1,Long Yan2,Qing Huang3,Zhi-Jun Li2,Ping Huai2,Xing-Tai Zhou2
1. State Key Laboratory of Nuclear Physics and Technology,Institute of Heavy Ion Physics,Peking University2. Shanghai Institute of Applied Physics,Chinese Academy of Sciences3. Ningbo Institute of Material Technology and Engineering,Chinese Academy of Sciences
摘 要:Irradiation effects in Ni–17Mo–7Cr alloy have been systematically investigated by using 3 Me V Au ions at different fluences ranging from 8 9 1013cm-2to 2.3 9 1015cm-2,corresponding to doses of 1–30 dpa.The results indicated that sample microstrain increased gradually from 0.14 to 0.22% as dose increased from 0 to 30 dpa.Besides,the nanohardness of Ni–17Mo–7Cr alloy increased with irradiation dose until 10 dpa,and then,softening effect became dominant while further increasing dose to 30 dpa.After being irradiated at room temperature,the swelling rate of Ni–17Mo–7Cr alloy was found to be around 0.04% per dpa.These data are helpful in estimating the irradiation resistance of this newly developed Ni–17Mo–7Cr alloy in nuclear energy systems.
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