摘要
采用慢应变速率试验(SSRT)研究了硫酸根阴离子浓度对Inconel 600镍基合金在模拟压水堆(PWR)一回路水中应力腐蚀开裂(SCC)敏感性的影响。结果表明:硫酸根离子促进Inconel 600镍基合金在高温水中的应力腐蚀开裂;随着硫酸根离子浓度升高,合金SCC敏感性增大;当高温水中硫酸根离子含量超过300μg/kg时,断口边缘出现局部腐蚀和局部穿晶裂纹。
The effect of sulphate anion concentration on stress corrosion cracking(SCC)sensitivity of Inconel 600 alloy in simulated pressurized water reactor(PWR)primary water was studied by slow strain rate test(SSRT)method.The results showed that sulphate promoted the SCC of Inconel 6o0 alloy in high temperature water.The SCC sensitivity of the alloy increased with the increase of sulphate concentration.When the sulphate concentration exceeded 3ooμg/kg,localized corrosion and localized transgranular cracks appeared on the edge of the fracture surface.
作者
吴义兵
张裕
陈红雨
崔同明
许鑫和
潘登
吕战鹏
WU Yibing;ZHANG Yu;CHEN Hongyu;CUI Tongming;XU Xinhe;PAN Deng;LU Zhanpeng(Daya Bay Nuclear Power Operations and Management Co.,Ltd.,Shenzhen 518124,China;Institute of Materials,School of Materials Science and Engineering,Shanghai University,Shanghai 200072,China)
出处
《腐蚀与防护》
CAS
CSCD
北大核心
2023年第4期9-14,共6页
Corrosion & Protection
基金
尖峰计划项目(R-2020SZSO53TF)
国家自然科学基金(51771107)。
