核蒸汽发生器用缓蚀剂的电化学行为研究

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名

邮箱

手机号码

标题

留言内容

验证码

Research of Electrochemistry Behavior of Slower for Nuclear Steam Generator

National Key Laboratory of Nuclear Fuel and Materials, Nuclear Power Institute of China, Chengdu 610041, China

摘要: 近来的研究表明,添加TiO₂缓蚀剂能有效减缓蒸汽发生器传热管的应力腐蚀开裂(SCC)和晶间腐蚀(IGA)等局部腐蚀,延长蒸汽发生器的使用寿命。本研究以不锈钢为试验材料,对含Ti缓蚀添加剂在热浓碱环境中缓解应力腐蚀开裂的能力进行了初步的电化学研究。结果表明,在热浓碱环境中,含Ti缓蚀剂对不锈钢碱蚀有一定缓蚀效果,而不同浓度的缓蚀剂的缓蚀效果差别不明显。
- 核蒸汽发生器 /
- 不锈钢 /
- 含Ti缓蚀剂 /
- 碱溶液 /
- 极化曲线
Abstract: Corrosion of construction material in high temperature water is one of the important problems of nuclear reactor. Lately research shows that TiO₂ inhabiting species can alleviate local corrosion, such as stress corrosion cracking （SCC） and intergranular attack （IGA） of steam generator tubes, and thus prolong the life of SG tube. This paper has studied the corrosion potentials and polarization carve of steel stainless in caustic solution with TiO₂ inhabiting species, and it shows that TiO₂ have positive effect.
- Nuclear steam generator /
- Stainless steel /
- Inhibitor containing Ti /
- Caustic solution /
- Polarization carve