Engineering Critical Assessment of nickel-based clad pipeline girth welds in a wet H2S-containing environment
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- 作者：Tse-Ven Steven Chonga ; b ; steven.chong@dnvgl.com" class="auth_mail" title="E-mail the corresponding author ; Shashi Bhushan Kumarb ; Jens Petter Tronskarb ; Man On Laia ; Wai Lam Loha
- 关键词：Sour service ; Pipeline girth welds ; High pressure/high temperature (HP/HT) ; Hydrogen diffusivity ; Engineering Critical Assessment
- 刊名：Engineering Fracture Mechanics
- 出版年：2016
- 出版时间：July 2016
- 年：2016
- 卷：160
- 期：Complete
- 页码：42-51
- 全文大小：1365 K
文摘
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Nickel-based alloy pipeline welds were fatigue tested in H2S solution.
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Fatigue crack growth rate is about 4 times higher than the in-air values.
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Fatigue crack growth rate is higher than the BS7910 in-air data by up to 3 times.
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Diffusible hydrogen analysis were also performed.
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CRA clad layer protects the pipeline backing steel from hydrogen embrittlement.