Comprehensive analysis of local corrosion degradation on austenitic pipeline

11th Hungarian Conference on Materials Science

Trampus, P.^1 ; Dobránszky, J.^2 ; Kerner, Z.^3 ; Knisz, J.^4 ; Oszvald, F.^5 ; Palotás, B.^1 ; Péter, L.^6 ; Réger, M.^7 ; Vero, B.^1

Research Department, University of Dunaújváros, Dunaújváros, Hungary^1

Scientific Advisor, Research Group for Composite Science and Technology, Budapest, Hungary^2

Centre for Energy Research, Hungarian Academy of Sciences, Budapest, Hungary^3

VEIKI Energia+ Ltd, Budapest, Hungary^4

Consultant Oszvaldfer, Paks, Hungary^5

Wigner Research Centre for Physics, Hungarian Academy of Sciences, Budapest, Hungary^6

Óbuda University, Budapest, Hungary^7

关键词: Austenitic pipelines;    Comprehensive analysis;    Corrosion degradation;    Degradation mechanism;    Degradation process;    Micro-structural;    Operating condition;    Welding parameters;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/426/1/012050/pdf
DOI  :  10.1088/1757-899X/426/1/012050

来源: IOP

【 摘 要 】

Corrosion degradation was observed in a nuclear power plant spent fuel cooling system. A systematic and comprehensive investigation program was developed to reveal the root cause of the degradation. Series of corrosion tests, mechanical, microstructural and microbiological investigations were carried out. Also, simulations of the operating conditions and welding parameters were performed. Based on the results, the major contributors to the degradation process were identified and a possible degradation mechanism was proposed.