Corrosion and cracking behavior in an API X-80 steel exposed to sour gas environments
Corrosion and cracking behavior in an API X-80 steel exposed to sour gas environments
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DOI：
10.5006/1.3277661
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发表时间：
2002-09-01
期刊：
影响因子：
1.6
通讯作者：
Lopez, HF
中科院分区：
文献类型：
--
作者：
Albarran, JL;Aguilar, A;Lopez, HF
采用自加载线弹性断裂力学（修正楔形张开加载，M-WOL）方法研究了微合金化API X-80管线钢的应力硫化物开裂（SSC）敏感性。为此，将M-WOL试样在室温下暴露于硫化氢（H（2）S）饱和的NACE溶液中，所施加的应力强度值K（I）为35 MPam（1/2）至50 MPam（1/2）。在所有K（I）值下，裂纹都有扩展，但扩展速率相对较慢（
In this work, self-loaded linear elastic fracture mechanics (modified wedge opening loading, M-WOL) specimens were used to investigate the stress sulfide cracking (SSC) susceptibility of a microalloyed API X-80 pipeline steel. For this purpose, M-WOL specimens were exposed to hydrogen sulfide (H(2)S)-saturated NACE solutions at room temperature under applied stress intensity values, K(I), from 35 MPam(1/2) to 50 MPam(1/2). Under all the applied K(I) values, crack growth was exhibited, but the propagation rates were relatively slow (