[1]王 涛,等.阴极充氢条件下氢在X80管线钢中的扩散行为研究[J].焊管,2019,42(3):8-11.[doi:10.19291/j.cnki.1001-3938.2019.3.002]
 WANG Tao,REN Yongfeng,TIAN Lei,et al.Study on Diffusion Behavior of Hydrogen in X80 Pipeline Steel Under the Condition of Cathode Hydrogen Charging[J].,2019,42(3):8-11.[doi:10.19291/j.cnki.1001-3938.2019.3.002]
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阴极充氢条件下氢在X80管线钢中的扩散行为研究()
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
42
期数:
2019年第3期
页码:
8-11
栏目:
试验与研究
出版日期:
2019-03-28

文章信息/Info

Title:
Study on Diffusion Behavior of Hydrogen in X80 Pipeline Steel
Under the Condition of Cathode Hydrogen Charging
文章编号:
10.19291/j.cnki.1001-3938.2019.3.002
作者:
王 涛1 2任永峰1 2田 磊1 2何石磊1 2
1. 国家石油天然气管材工程技术研究中心,  陕西 宝鸡721008;
2. 宝鸡石油钢管有限责任公司 钢管研究院,  陕西 宝鸡721008
Author(s):
WANG Tao12 REN Yongfeng12 TIAN Lei12 HE Shilei12
1. Chinese National Engineering Research Center for Petroleum and Natural Gas Tubular Goods, Baoji 721008, Shaanxi, China;
2. Steel Pipe Research Institute, Baoji Petroleum Steel Pipe Co., Ltd., Baoji 721008, Shaanxi, China
关键词:
X80管线钢阴极充氢氢含量扩散行为
Keywords:
X80 pipeline steel cathodic hydrogen charging hydrogen content diffusion behavior
分类号:
TG115
DOI:
10.19291/j.cnki.1001-3938.2019.3.002
文献标志码:
A
摘要:
为了进一步预测管线在服役条件下的氢含量以及研究氢在材料中的扩散行为,采用电化学方法,对X80管线钢在稀H2SO4溶液中进行阴极充氢,并采用甘油置换法对试样吸收的氢含量进行测定。试验结果显示,X80管线钢在稀H2SO4溶液中电化学充氢时,延长充氢时间或增加充氢电流密度,可提高管线钢吸收氢的量,充氢48 h后吸收的可扩散氢含量基本达到稳定值;随氢浓度的增加,氢扩散系数由0.35×10-6 cm2/s逐渐递增到0.47×10-6 cm2/s。研究表明,在电化学充氢时间一定的情况下,充氢电流密度的增加加速了氢在金属中的扩散,使材料吸收氢含量得到提高。
Abstract:
In order to forecast hydrogen content of pipeline in service condition and study diffusion behavior of hydrogen in material, electrochemical method was used for X80 pipeline steel cathodic hydrogen charging in a dilute sulfuric acid solution,  glycerol replacement method was used for testing hydrogen content absorbed by sample. The test results showed that the amount of hydrogen absorbed by X80 pipeline steel could be increased by extending the time of hydrogen charging or increasing the current density of hydrogen charging when it was electrochemically charged with hydrogen in dilute H2SO4 solution. The absorbed diffusible hydrogen content after hydrogen charging for 48 hours basically reached a stable value. With the increase of hydrogen concentration, hydrogen diffusion coefficient increased from 0.35×10-6 cm2/s to 0.47×10-6 cm2/s. The research indicated that the increase of hydrogen charging current density accelerated the diffusion of hydrogen in the metal, and improve absorbed hydrogen content at the same electrochemically charging hydrogen time.

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备注/Memo

备注/Memo:
收稿日期:2018-10-16
基金项目:国家重点研发计划“低温高压服役条件高强度管线用钢”(项目编号2017YFB0304903)。
作者简介:王 涛(1982—),男,硕士,工程师,主要从事油气管材腐蚀与防护研究。
更新日期/Last Update: 2019-04-19