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High-temperature high-pressure SCC testing of corrosion-resistant alloys
Materials and Corrosion ( IF 1.6 ) Pub Date : 2021-07-12 , DOI: 10.1002/maco.202112602
Anastasiia Galakhova 1 , Karl Prattes 2 , Gregor Mori 1
Affiliation  

Stress corrosion cracking test methods of corrosion-resistant alloys are reviewed. The interest to write a review on this topic was drawn by demands for oil country tubular goods applicable in deep wells with high pressures, high temperatures, and the presence of H2S, where stress corrosion cracking is one of the most critical failure modes. All conventional methods for determining the stress corrosion cracking resistance of an alloy, mainly slow strain rate testing, constant load testing (tensile, 4-PB), constant strain testing (U-bend, C-ring), and fracture mechanics (double cantilever beam sample) are covered. Considering the variety of testing solutions, the field of search is narrowed to hot (up to 250°C) aqueous chloride solutions with dissolved H2S and CO2 gases under high pressure (up to 200 bar total pressure).

中文翻译:

耐腐蚀合金的高温高压 SCC 测试

综述了耐腐蚀合金的应力腐蚀开裂试验方法。对适用于高压、高温和存在 H 2 S 的深井的油井管材的需求引起了撰写关于该主题的评论的兴趣,其中应力腐蚀开裂是最关键的失效模式之一。确定合金抗应力腐蚀开裂性的所有常规方法,主要是慢应变速率试验、恒载试验(拉伸,4-PB)、恒应变试验(U形弯曲、C形环)和断裂力学(双悬臂梁)梁样本)被覆盖。考虑到测试溶液的多样性,搜索范围缩小到含有溶解的 H 2 S 和 CO 2 的热(高达 250°C)氯化物水溶液 高压下的气体(高达 200 bar 的总压力)。
更新日期:2021-07-12
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