Effect of Zinc Addition to Simulated Primary Water on SCC Susceptibility of 316L Stainless Steel
Austenitic stainless steel 316L has been well used as one of the structural materials of components in the nuclear reactor.However, severe SCC phenomenon has been found during the service.It is suggested that zinc may be effective to improve the SCC resistance of 316L.In this work the effect of zinc addition to simulated primary water on stress corrosion cracking(SCC) susceptibility of 316L stainless steel was examined at 300℃ using slow strain rate test(SSRT, strain rate 0.001mm/min).Susceptibility of 316LSS to SCC was evaluated by Time to Finish(TF) of SSRT.The results showed that 50ppn Zn addition to the simulated primary water significantly reduced the SCC susceptibility of 316L stainless steel and the result became inverse when the concentration increased to 100ppb.In addition, fracture morphology by SEM was used to study the effect of Zn injection on crack initiation and growth.
316L stainless steel stress corrosion crack slow strain rate test zinc addition
Yong Huang Jun Yao Zhengyin Hai Shuo Cong Yanlin Zhao Ning Li
College of Energy, Xiamen University, Xiamen 361005, People”s Republic of China China Institute of Atomic Energy, Beijing, 102413, People”s Republic of China Beijing Key Laboratory of Process Fluid Filtration and Separation, College of Mechanical and Transpo
国内会议
沈阳
英文
248-255
2015-09-20（万方平台首次上网日期，不代表论文的发表时间）