Corrosion Characteristics of a 5Cr-1Mo Steel Specimen by Sodium-Water Reaction

나트륨-물 반응에 의한 5Cr-1Mo Steel 시편의 부식특성

  • Jeong, Kyung-Chai (Korea Atomic Energy Research Institute, KALIMER Verification Test Lab.) ;
  • Jeong, Ji-Yeong (Korea Atomic Energy Research Institute, KALIMER Verification Test Lab.) ;
  • Park, Jin-Ho (Korea Atomic Energy Research Institute, KALIMER Verification Test Lab.) ;
  • Hwang, Sung-Tai (Korea Atomic Energy Research Institute, KALIMER Verification Test Lab.) ;
  • Kim, Eui-Sik (Department of Chemical Engineering, Chungbuk National University)
  • 정경채 (한국원자력연구소 KALlMER 검증시험 Lab.) ;
  • 정지영 (한국원자력연구소 KALlMER 검증시험 Lab.) ;
  • 박진호 (한국원자력연구소 KALlMER 검증시험 Lab.) ;
  • 황성태 (한국원자력연구소 KALlMER 검증시험 Lab.) ;
  • 김의식 (충북대학교 화학공학과)
  • Received : 1998.06.16
  • Accepted : 1998.09.09
  • Published : 1998.12.10


Small water leak experiment was carried out for the 5Cr-1Mo steel specimen in sodium atmosphere. Perfect re-open time for the leak path of a specimen, by micro leak, was 129 minutes, and its size observed about 2 mm diameter at sodium side. The halos phenomena appeared around of leak spot before the leak path has re-opened, and the size of halos observed was different from the real re-open size of a specimen. Also, the corrosion of a specimen initiated from sodium side, but it did not occur at steam side. In AES analysis, the segregation phenomena of Cr in the specimen was found much more than those of other elements. And also, the sodium compounds formed by sodium-water reaction and deposited onto the leak site of specimen were observed by EPMA analysis and SEM photograph. It is postulated that the corrosion products could be precipitated to form mixed Na Fe Cr compounds.


Grant : 원자력개발 중장기 과제

Supported by : 과기부


  1. Nucl. Tech v.46 J. L. Quinet;L. Lannou
  2. 3rd Int. Conf. Liquid Metal Engineering and Technology in Energy Production T. Desmas;P. Lemoine
  3. Atomkernenergie v.14 K. Dumm
  4. Nucl. Tech v.14 D. A. Greene
  5. APDA Report H. V. Chamberlain;J. A. Cameron;J. H. Coleman;J. A. Ford
  6. CRIEPI Report T91016 大音明洋;木下泉;吉田和生;植田伸幸
  7. 日本原子力學會誌 v.44 根井弘道;橋口功
  8. J. Nucl. Energy Soc. v.14 K. Tregonning;A. Mackey;K. Buxton
  9. LIMET '88, Proc. 4th Int. Conf. Liquid Metal Engineering Technology R. Currie;N. Innes;A. S. Fraser
  10. Proceeding Int. Conf. Liquid Metal Technology in Energy Production, CONF-760503-P1 P. S. Chopra;C. C. Stone;E. Hutter;W. K. Barney;R. G. Starker
  11. Atomic International Report NA-SR-8140 M. A. Salmon;J. S. McDonald
  12. Nucl. Tech. v.21 D. R. Vissers
  13. J. Nucl. Mat. v.60 A. C. Whittingham
  14. J. Kor. Ind. and Eng. Chem v.9 K. C. Jeong;B. H. Kim;S. W. Kwon;K. R. Kim;S. T. Hwang
  15. Proceedings of the 3rd Intermational Conference v.1 Liquid Metal Engineering and Technology D. A. Greene
  16. Int. Meeting on Fast Reactor Safety Related Physics M. Hori;K. Kawashima;M. Sato;T. Saito;N. Kanegae;H. Hiroi