Effect of thermal aging on the mechanical, intergranular corrosion and corrosion fatigue properties of Z3CN20.09M cast duplex stainless steel

Wenxin Ti; Huanchun Wu; Fei Xue; Guodong Zhang; Qunjia Peng; Kewei Fang; Xitao Wang

doi:https://doi.org/10.1016/j.net.2021.02.001

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자료유형: 학술저널

저자정보: Wenxin Ti (a Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing) Huanchun Wu (Plant Life Management Center, Suzhou Nuclear Power Research Institute) Fei Xue (Plant Life Management Center, Suzhou Nuclear Power Research Institute) Guodong Zhang (Plant Life Management Center, Suzhou Nuclear Power Research Institute) Qunjia Peng (Plant Life Management Center, Suzhou Nuclear Power Research Institute) Kewei Fang (Plant Life Management Center, Suzhou Nuclear Power Research Institute) Xitao Wang (a Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing)

저널정보: 한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제53권 제8호

발행연도: 2021.8

수록면: 2,591 - 2,599 (9page)

DOI: https://doi.org/10.1016/j.net.2021.02.001

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The effect of thermal aging at 475 C and 750 C of Z3CN20.09M cast duplex stainless steel (CDSS) onmicrostructure, mechanical and intergranular corrosion properties were investigated by transmissionelectron microscope (TEM), nano indenter, scanning electron microscope (SEM) and corrosion fatiguetest system. The result indicated that the spinodal decomposition and G precipitated were occurred afteraged at 475 C, as well as sigma precipitated at 750 C. The microstructure degeneration of ferrite wassaturated after aged for 2000h and 200 h at 475 C and 750 C respectively. The mechanical properties,intergranular corrosion resistance and corrosion fatigue lives were continuing deteriorated withincreasing the aging time at both temperatures. The difference of the degeneration mechanisms ofZ3CN20.09M CDSS aged at 475 C and 750 C was analyzed

#Thermal aging #Spinodal decomposition #Sigma precipitation #Corrosion fatigue #High temperature water

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Wenxin Ti

소속기관 a Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing