文献类型：期刊文献

中文题名：304奥氏体不锈钢在酸性氯离子溶液中应力腐蚀性能的研究

英文题名：Study on Stress Corrosion Property of 304 Austenitic Stainless Steel in the Environment of Acid Chloride Solution

作者：黄毓晖[1];轩福贞[1];涂善东[1]

机构：[1]华东理工大学机械与动力工程学院,上海200237

年份：2009

卷号：26

期号：7

起止页码：5

中文期刊名：压力容器

外文期刊名：Pressure Vessel Technology

收录：CSTPCD;;北大核心:【北大核心2008】；

语种：中文

中文关键词：奥氏体不锈钢;氯离子;慢应变速率;应力腐蚀开裂

外文关键词：Austenitic stainless steel; chloride ion ; slow strain rate; stress corrosion crack

摘要：采用慢应变速率拉伸实验研究了304奥氏体不锈钢在60℃时,不同氢离子浓度的NaCl溶液中的应力腐蚀性能。实验结果表明,随着氢离子浓度的增大,304不锈钢的应力腐蚀敏感性增强,但是当氢离子浓度达到一定程度时,应力腐蚀敏感性显著下降,这是由于当氢离子浓度过大时,均匀腐蚀的作用优先于应力腐蚀作用成为主导。在这种阳极溶解型应力腐蚀开裂中,氢和应力的交互作用增加了304不锈钢在酸性氯离子溶液中的应力腐蚀敏感性。
Slow strain rate tests were adopted to study stress corrosion properties of 304 austenitic stainless steel in the environment of different concentration of acid NaCl solution at the temperature of 60℃. Test result showed that with the increasing of H ＋ concentration, stress corrosion cracking sensitivity increased, however, when H ＋ concentration reached a critical value, stress corrosion cracking sensitivity decreased drastically due to general corrosion. Although steel in acid NaCI solution is anodic solution, cracking sensitivity in the environment of acid the mechanism of stress corrosion cracking for 304 stainless interaction of hydrogen and stress increased stress corrosion NaCl solution.