The Studies of Irradiation Hardening of Stainless Steel Reactor Internals under Proton and Xenon Irradiation

Chaoliang Xu; Lu Zhang; Wangjie Qian; Jinna Me; Xiangbing Liu

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자료유형: 학술저널

저자정보: Chaoliang Xu (Suzhou Nuclear Power Research Institute) Lu Zhang (Suzhou Nuclear Power Research Institute) Wangjie Qian (Suzhou Nuclear Power Research Institute) Jinna Me (Suzhou Nuclear Power Research Institute) Xiangbing Liu (Suzhou Nuclear Power Research Institute)

저널정보: 한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제48권 제3호

발행연도: 2016.6

수록면: 758 - 764 (7page)

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Specimens of stainless steel reactor internals were irradiated with 240 keV protons and6 MeV Xe ions at room temperature. Nanoindentation constant stiffness measurementtests were carried out to study the hardness variations. An irradiation hardening effect wasobserved in proton- and Xe-irradiated specimens and more irradiation damage causes alarger hardness increment. The Nix-Gao model was used to extract the bulk-equivalenthardness of irradiation-damaged region and critical indentation depth. A different hardeninglevel under H and Xe irradiation was obtained and the discrepancies of displacementdamage rate and ion species may be the probable reasons. It was observed that thehardness of Xe-irradiated specimens saturate at about 2 displacement/atom (dpa), whereasin the case of proton irradiation, the saturation hardness may be more than 7 dpa. Thisdiscrepancy may be due to the different damage distributions.

#Hardness #Irradiation #Nix-Gao Model #Stainless Steel

참고문헌 (21)

참고문헌 신청

G.S. Was / 2007 / Fundamentals of Radiation Materials Science:Metals and Alloys / Springer

Y. Takayama / Nanoindentation hardness and its extrapolation to bulk-equivalent hardness of F82H steels after single- and dual-ion beam irradiation / J. Nucl. Mater 442:S23~S27

S.K. Kang / 2010 / Conventional Vickers and true instrumented indentation hardness determined by instrumented indentation tests / J. Mater. Res 25:337~343

J.P. Biersack / 1980 / A Monte Carlo computer program for the transport of energetic ions in amorphous targets / Nucl. Instrum. Methods 174:257~269

ASTM / 2003 / Standard Practice for Neutron Radiation Damage Simulation by Charged-particle Irradiation

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