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[1]张军,王财林,张慧敏,等.在役天然气管道掺氢应力腐蚀开裂研究进展与展望[J].油气储运,2025,44(07):1-15.
　ZHANG Jun,WANG Cailin,ZHANG Huimin,et al.Progress and prospects of research on stress corrosion cracking in in-service natural gas pipelines transporting hydrogen-doped blends[J].Oil & Gas Storage and Transportation,2025,44(07):1-15.

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在役天然气管道掺氢应力腐蚀开裂研究进展与展望

《油气储运》[ISSN:1000-8241/CN:13-1093/TE] 卷: 44 期数: 2025年07期页码: 1-15 栏目: 出版日期: 2025-07-25

Title:: Progress and prospects of research on stress corrosion cracking in in-service natural gas pipelines transporting hydrogen-doped blends

作者:: 张军；王财林；张慧敏；徐修赛；杨佩勋；李玉星; 中国石油大学（华东）储运与建筑工程学院

Author(s):: ZHANG Jun; WANG Cailin; ZHANG Huimin; XU Xiusai; YANG Peixun; LI Yuxing; College of Pipeline and Civil Engineering, China University of Petroleum (East China)

关键词:: 氢气; 掺氢天然气; 应力腐蚀开裂; 阳极溶解; 氢致开裂

Keywords:: hydrogen; hydrogen-doped natural gas; stress corrosion cracking (SCC); anodic dissolution; hydrogen-induced cracking (HIC)

分类号:: TE832

文献标志码:: A

摘要:: 【目的】世界范围内氢能需求的大幅增长为氢气输送提出新的要求，利用现有天然气管道掺氢输送为一种经济高效的输送方案。然而，这一过程面临着诸多挑战，尤其是管道在复杂腐蚀环境下的应力腐蚀开裂（SCC）风险。通过研究氢-腐蚀-应力共同作用下的管道行为，为掺氢天然气管道的安全评估与防护提供理论依据与实践指导。【方法】首先，阐述了应力腐蚀的阳极溶解机理，包括氧化膜开裂、滑移溶解、膜致脆断等。其次，探讨了氢致开裂机理，分析了材料因素（元素含量、夹杂物、微观结构等）、环境因素（温度、外加电位、腐蚀介质、pH值等）、应力因素（残余应力、膜致应力等）以及气态氢对管道SCC行为的影响规律。【结果】氢的掺入致使管道材料韧性降低，显著加剧了管道的SCC风险。材料的微观组织、加工工艺以及力学性能均会影响材料氢脆敏感性；含碳量的增加会提升材料的脆性，晶界碳化物的存在会加速SCC进程；温度、外加电位以及腐蚀介质的变化对于管道的SCC敏感性的影响缺乏规律性，需根据管道材料的不同进行多因素耦合分析；在应力方面，残余应力与膜致应力在氢-腐蚀-应力的共同作用下，显著促进了裂纹的形核与扩展，加速了管道SCC。【结论】在掺氢天然气管道SCC风险评估与管理方面，当前研究存在不足，特别是在掺氢比、安全性、相关技术工艺等方面。未来应进一步关注氢能管道输送技术的核心问题，包括管材相容性、寿命预测、氢能管道输送技术标准体系的建立与完善等。这些研究将为在役天然气管道掺氢输送提供更有力的保障，推动氢能的大规模应用。

Abstract:: [Objective] The substantial growth in global hydrogen energy demand has significantly increased the need for hydrogen transportation. Utilizing existing natural gas pipelines to transport hydrogen-doped blends is considered an economical and efficient option. However, this transportation process presents challenges, particularly the risk of stress corrosion cracking (SCC) in pipelines exposed to complex corrosive environments. This paper aims to provide a theoretical foundation and practical guidance for the safety assessment and protection of hydrogen-doped natural gas pipelines, based on a study focused on pipeline behaviors under the combined effects of hydrogen, corrosion, and stress. [Methods] First, the anodic dissolution mechanism underlying stress corrosion is elaborated, including processes such as oxide film cracking, slip dissolution, and corrosion-induced brittle fracture. Second, the mechanism of hydrogen-induced cracking (HIC) is discussed, along with an analysis that explores the influence patterns of various factors on pipeline behaviors related to SCC. These factors include material characteristics, such as element content, inclusions, and microstructure; environmental conditions, including temperature, applied potential, corrosive medium, and pH; stress factors, such as residual stress and corrosion-induced stress; and the effects of gaseous hydrogen. [Results] The blending of hydrogen reduces the toughness of pipeline materials, significantly increasing the SCC risk. The microstructure, processing techniques, and mechanical properties of these materials are all linked to their hydrogen embrittlement sensitivity. An increase in carbon content contributes to greater brittleness, while the presence of grain boundary carbides acts as an accelerator in the SCC process. Due to the inconsistent patterns in how varying temperature, applied potential, and corrosive media influence the SCC sensitivity of pipelines, a multi-factor coupling analysis based on different pipeline materials is deemed necessary. In terms of stress, both residual stress and corrosion-induced stress significantly promote crack nucleation and propagation under the combined effects of hydrogen, corrosion, and stress, thereby accelerating the SCC process in pipelines. [Conclusion] Research on the risk assessment and management related to SCC in hydrogen-doped natural gas pipelines is limited, particularly concerning the hydrogen blending ratio, safety, and related technological processes. Future research should focus on core issues regarding pipeline transportation technology for hydrogen energy, including pipe compatibility, service life prediction, and the establishment and refinement of a technical standard system in this field. These studies are expected to provide stronger safeguards for transporting hydrogen-doped blends through in-service natural gas pipelines and to facilitate the large-scale application of hydrogen energy.

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更新日期/Last Update: 2025-06-04