检索结果-南通市图书馆

Atmospheric Corrosion of q235 carbon steel and q450 Weathering steel in Turpan,China

Journal of Iron and steel Research International 2016年第10期23卷 1061-1070页

作者： qiang YU Chao-fang DONG Yue-hua FANG Kui XIAO Chun-yun GUO Gang HE Xiao-gang LI Corrosion and Protection Center Key Laboratory for Corrosion and Protection University of Science and Technology Beijing Beijing 100083 China Xinjiang Turpan Natural Environmental Test Research Center Turpan 838200 Xinjiang China

q235carbon steel and q450 weathering steel were exposed to the hot and dry environment of Turpan,China for three *** corrosion rates of both steels were calculated and *** morphologies of the rust layer products were observed by optical microscopy and scanning electron *** of the rust layers were performed by X-ray photoelectron spectroscopy,X-ray powder diffraction,and Raman spectroscopy,and analysis results indicate that the compositions of rust are main iron rich oxide such as FeOOH,Fe_3O_4,and Fe_2O_*** iron oxide layer content proportion was calculated through a semi-quantitative *** resistance elements（Cr,Ni,and Cu）enhanced the resistance properties of the q450 weathering steel ***,the resistance elements increased the proportion of goethite crystals in the corroded rust layer.

关键词： atmospheric corrosion q235 carbon steel q450 weathering steel rust layer

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Study on Kinetics of Cathodic Reduction of Dissolved Oxygen in 3.5% Sodium Chloride Solution

引用

Journal of Ocean University of China 2010年第3期9卷 239-243页

作者： LI Yongjuan ZHANG Dun WU Jiajia Institute of Oceanology Chinese Academy of Sciences Qingdao 266071 P. R. China College of Science Gansu Agriculture University Lanzhou 730070 P. R. China Graduate University of Chinese Academy of Sciences Beijing 100039 P. R. China

Electrochemical reduction of dissolved oxygen in seawater on metals is of great importance for corrosion studies. The present paper studied cathodic reduction of dissolved oxygen on q235 carbon steel in 3.5% sodium chloride （NaCl） solutions by cyclic voltammetry （CV）, electrochemical impedance spectroscopy （EIS）, rotating disk electrode （RDE） and rotating ring-disk electrode （RRDE）. The cyclic voltammetric results demonstrated the cathodic process on q235 carbon steel in O2-saturated 3.5% NaCl solution contains three reactions： dissolved oxygen reduction, iron oxides reduction and hydrogen evolution. The peak potential of oxygen reduction reaction （ORR） is - 0.85 V vs Ag/AgCl, 3 molL^-1 KCI. The EIS results indicated that the ORR occurring on q235 carbon steel is a 4-electron process and that no finite diffusion is caused by the intermediate of H2O2 produced by ORR. The RDE and RRDE voltammograms confirmed the EIS results and it was found that the number of transferred electrons for ORR was nearly 4, i.e., dissolved oxygen reduced to water.

关键词： dissolved oxygen reduction 3.5% NaCl solution q235 carbon steel cyclic voltammetry electrochemical impedance spectroscopy rotating electrode

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：