화학공학소재연구정보센터
학회 한국재료학회
학술대회 2007년 봄 (05/10 ~ 05/11, 무주리조트)
권호 13권 1호
발표분야 에너지 환경재료
제목 Corrosion Characteristics of 316L, HT-9 and T91 at 570oC Flowing Liquid Lead-alloy
초록 KAERI(Korea Atomic Energy Research Institute) has been developing future nuclear reator systems adopting lead-alloys as reactor coolants. One example is HYPER which is designed to transmute long-lived transuranic actinides and fission products such as Tc-99 and I-129. Pb-Bi is used as core coolant and target material for HYPER. Another example is a GEN-IV type lead cooled fast reactor. Both lead and lead-bismuth have a corrosion problem at high temperature. KAERI built corrosion test loops to study corrosion behaviour of reactor structure materials which are steels such as 316L, T91 and HT-9. HT-9 is the candidate material for fuel cladding. T91 is the candidate material for HYPER beam window. The test loops are named as KPAL-I (KAERI Pb-Alloy Loop I) and KPAL-II for Pb-Bi and Pb loops respectively. The experiment was performed under oxygen-controlled atmospheres at 570oC. Oxygen concentration was controlled by adjusting H2 and H2O vapor ratio. Controlled oxygen can make oxide layer to protect samples against the corrosion.
저자 송태영, 조충호, 조춘호
소속 한국원자력(연)
키워드 납합금; 부식; 원자로; 냉각재
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