摘要
采用电化学噪声(ECN)法,原子力显微镜(AFM)原位观察,研究了N80钢在以0.5mol/LNaHCO_3为基础液加入NaCl溶液中的点蚀行为。结果表明,点蚀的噪声随Cl-浓度增大,单位时间内点蚀特征峰增多,峰值变大,寿命变长;N80钢表面状态的变化与电化学噪声谱的特征有明显相关性。
The pitting corrosion behavior of N80 steel in aqueous NaCl solution containing 0.5 mol/L NaHCO3 was investigated making use of electrochemical noise(ECN) measurement and atomic force microscopic(AFM) observation.It was found that the number of the pitting peaks,the peak value and the life of the peak increased with the increasing concentration of Cl-.Moreover,there existed obvious correlation between the characteristics of the measured electrochemical noise spectroscopy and the change on the surface state of the N80 steel.
出处
《材料保护》
CAS
CSCD
北大核心
2007年第8期27-29,共3页
Materials Protection
基金
中国石油天然气集团公司中青年创新基金资助项目(04E7014)
