Effect of helium and hydrogen production on irradiation hardening of F82H steel irradiated by ion beams

被引：10
作者：
Wakai, Eilchi
Ando, Masami
Sawai, Tomotsup
Ohnuki, Somei
机构：
[1] Japan Atom Energy Agcy, Nucl Sci & Engn Directorate, Ibaraki 3191195, Japan
[2] Hokkaido Univ, Div Mat Sci, Sapporo, Hokkaido 0608628, Japan
来源：
MATERIALS TRANSACTIONS | 2007年 / 48卷 / 06期
关键词：
irradiation hardening; irradiation softening; martensitic steel; triple ion beams; dual ion beams; micro indentation; microstructure;
D O I：
10.2320/matertrans.MBW200611
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Effects of helium and hydrogen production on irradiation hardening of martensitic steel F82H (Fe-8Cr-2W-0.2V-0.04Ta-0.1C) were examined by dual or triple beam experiments. The effects of tempering and cold working were also examined. The irradiations were performed at about 500 degrees C to 50 dpa under simultaneous dual beams of 10.5 MeV Fe (3+) and 1.05 MeV He+ or triple beams of those and 380 kcV H+ ions. The value of appm-He/dpa for the dual ion beams was about 15, and the values of appm-He/dpa and appm-H/dpa for the triple ion beams were 15 and 15 (or 150), respectively. The hardness of the irradiated specimens measured at room temperature using a micro indentation after the irradiations. Irradiation softening and hardening was observed in F82H-std, F82H+20%CW and a non-tempered F82H steels irradiated at about 500 degrees C to 18 and 50 dpa, respectively, by dual ion beams. The hardness of the specimens irradiated at about 500 degrees C to 18 dpa under triple ion beams was harder than that under dual ion beams.
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收藏
页码：1427 / 1430
页数：4
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