期刊
CORROSION SCIENCE
卷 48, 期 2, 页码 432-444出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2005.01.011
关键词
pipeline steel; cathodic charging; hydrogen absorption; oxidation; near-neutral pH SCC
The hydrogen electrochemical oxidation method was used to determine the total amount of hydrogen absorbed by pipeline steels under cathodic charging. The oxidation currents were obtained for the hydrogen pre-charged specimen maintained at a certain positive potential in dilute NaOH electrolyte. The area under the current curve demonstrated a relationship with the hydrogen concentration. Hydrogen concentrations in pre-charged X70 and 16Mn steels were estimated using this method. It is shown clearly that hydrogen concentration in specimens increase as the applied current density increased, but the sensitivities of different materials to hydrogen are different. The effect of solution pH and pre-charging time on absorbed hydrogen is also studied. (C) 2005 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据