摘要
对不同冷变形量的核级316和316L不锈钢在高温水中的应力腐蚀开裂(SCC)行为进行了研究。通过试验,对溶解氧、氯离子和温度对裂纹扩展速率的影响进行了深入探讨和分析。试验结果显示,溶解氧和氯离子能明显加快材料的应力腐蚀开裂速率。当水化学条件一致时,325℃时的裂纹扩展速率较288℃时的裂纹扩展速率高。
The stress corrosion cracking(SCC)behaviors of different deformations of cold-deformed nuclear grade 316 SS and 316 LSS in high temperature water were studied.The effects of dissolved oxygen,Cl-and temperature on the crack growth rate were analyzed detailedly.Test results show that dissolved oxygen and Cl-can significantly increase the crack growth rate of the material.Moreover,the crack growth rates are faster at 325 ℃than that at 288 ℃ when water chemical conditions are the same.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2015年第11期1977-1983,共7页
Atomic Energy Science and Technology
基金
大型先进压水堆核电站重大专项资助项目(2011ZX06004-009-0601)
关键词
应力腐蚀开裂
冷变形
溶解氧
stress corrosion cracking
cold deformation
dissolved oxygen