Journal of the Korean institute of surface engineering (한국표면공학회지)

The Korean Institute of Surface Engineering (한국표면공학회)
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Corrosion Behaviors of Neutron-Irradiated Reactor Pressure Vessel Steels with Various Nickel and Chromium Contents

Ni과 Cr 함량이 다른 원자로 압력용기용 강의 중성자 조사 후 내식성 평가

  • Choi, Yong (Department of Materials Science and Engineering, Dankook University)
  • 최용 (단국대학교 신소재공학과)
  • Received : 2019.10.01
  • Accepted : 2019.11.06
  • Published : 2019.12.31
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Abstract

Quasi-nano-hardness and corrosion behaviors of neutron-irradiated reactor pressure vessel (RPV) steels such as 15Ch2MFA (Ni<0.4, 2.520 n/㎠ (En>1.0 MeV) for 32 days. Quasi-nano-hardnesses of the 15Ch2MFA and 15Cr2NHFA steels were 183.8 and 179.8 Hv, respectively. Their corrosion rates and corrosion potentials were 2.4×10-4Acm-2, -515.9 mVSHE and 6.8×10-4 Acm-2, -523.6 mVSHE in NACE standard TM0284-96 solution at room temperature, respectively. 15Ch2MFA steel showed better quasi-nano-hardness and corrosion resistance than 15Cr2NHFA steel in this test condition.

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