Effects of hydrogen-charging on the susceptibility of X100 pipeline steel to hydrogen-induced cracking
Effects of hydrogen-charging on the susceptibility of X100 pipeline steel to hydrogen-induced cracking
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DOI：
10.1016/j.ijhydene.2009.09.090
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发表时间：
2009-12-01
影响因子：
7.2
通讯作者：
Cheng, Y. F.
中科院分区：
文献类型：
--
作者：
Dong, C. F.;Liu, Z. Y.;Cheng, Y. F.
采用拉伸试验、电化学氢渗透测量和表面表征技术研究了X100管线钢的氢致开裂（HIC）行为。分析了钢中夹杂物对裂纹萌生的影响。结果表明，X100钢试样的充氢量随充氢时间和充氢电流密度的增加而增加。充氢将提高钢的HIC敏感性。裂纹主要起始于钢中的夹杂物，例如氧化铝、氧化钛和碳化铁。测定了室温下氢在X100钢中的扩散系数为1.04 × 10 ~（-8）cm ~（2）/s。(C)2009年教授T。Nejat Veziroglu。由爱思唯尔有限公司出版。保留所有权利。
In this work, the hydrogen-induced cracking (HIC) behavior of X100 pipeline steel was investigated by a combination of tensile test, electrochemical hydrogen permeation measurement and surface characterization techniques. The effect of inclusions in the steel on the crack initiation was analyzed. Results demonstrated that the amount of hydrogen-charging into the X100 steel specimen increases with the charging time and charging current density. Hydrogen-charging will enhance the susceptibility of the steel to HIC. The cracks initiate primarily at inclusions, such as aluminum oxides, titanium oxides and ferric carbides, in the steel. The diffusivity of hydrogen at room temperature in X100 steel is determined to be 1.04 x 10(-8) cm(2)/s. (C) 2009 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.