Effect of temperature on corrosion behavior of alloy 690 in high temperature hydrogenated water

被引：1

作者：

Jiazhen Wang ^{[1
,2
]}

Jianqiu Wang ^{[1
]}

Hongliang Ming ^{[1
]}

Zhiming Zhang ^{[1
]}

EnHou Han ^{[1
]}

机构：

[1] Key Laboratory of Nuclear Materials and Safety Assessment,Institute of Metal Research,Chinese Academy of Sciences

[2] Reactor Engineering Research Sub-Institute,Nuclear Power Institute of China

来源：

JournalofMaterialsScience&Technology | 2018年 / 34卷 / 08期

关键词：

Alloy; Polarization; EIS; SEM; TEM; High temperature corrosion;

D O I：

暂无

中图分类号：

TG172 [各种类型的金属腐蚀];

学科分类号：

080503 ;

摘要：

The influence of temperature on the corrosion behavior of Alloy 690 is evaluated using potentiodynamic polarization curves,electrochemical impedance spectra(EIS),scanning electron microscopy(SEM),Xray photoelectron spectroscopy(XPS) and transmission electron microscopy(TEM).The corrosion rate of Alloy 690 reaches a local maximum at 250?C.The kinetic control step of the growth of oxide film changes from the diffusion process of aqueous-phase ions to the growth of Cr-rich barrier layer in the temperature range of 200–300?C.A modified double-layer model is proposed to describe the effect of temperature on the structure and composition of the oxide film.

引用

页码：1419 / 1427

页数：9