Fracture Toughness and Fatigue Crack Growth Rate of Pipeline Steel in Industrial Hydrogen Environment
工業用水素環境におけるパイプライン鋼の破壊靭性と疲労き裂進展速度 (AI 翻訳)
F. Gui, Mark M Robinson, L. Hollis, A. Huggins-Gonzalez
🤖 gxceed AI 要約
日本語
この研究は、工業脱炭素化に向けた水素輸送パイプラインの実現可能性評価に必要な、パイプライン鋼の水素環境下での破壊特性と疲労き裂進展速度を調査した。純水素環境および水分や微量H2Sを含む環境（グリーン・ブルー水素模擬）で試験を実施。溶接部と熱影響部の破壊靭性、疲労き裂進展速度を取得し、大規模パイプラインネットワークへの適用性評価に資するデータを提供した。
English
This research investigates fracture toughness and fatigue crack growth of pipeline steel in hydrogen environments to assess feasibility of hydrogen transport pipelines for industrial decarbonization. Tests were conducted in pure hydrogen and hydrogen containing moisture and trace H2S (simulating green and blue hydrogen). Data on weld and heat-affected zone properties inform large-scale pipeline network decisions.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
本研究成果は、日本が推進する水素社会実現に向けた水素輸送インフラの安全性評価に直接貢献する。特に、グリーン・ブルー水素を想定した環境での材料特性データは、国内パイプライン規格策定やGX実証事業に活用可能である。
In the global GX context
As countries expand hydrogen pipeline networks for decarbonization, this study provides critical fracture and fatigue data for pipeline steel in both pure and impure hydrogen environments—directly informing integrity assessments for blue and green hydrogen transport.
👥 読者別の含意
🔬研究者:Provides baseline data on hydrogen embrittlement in pipeline steels under realistic impurity conditions.
🏢実務担当者:Essential for pipeline material selection and fitness-for-service assessments in hydrogen service.
🏛政策担当者:Supports development of safety codes for hydrogen transport infrastructure.
📄 Abstract（原文）
To meet Net Zero targets, there has been a strong push to facilitate industrial decarbonization through fuel switching from natural gas to hydrogen via hydrogen transportation pipeline networks. Therefore, it is important to understand the fracture properties and fatigue crack growth rates of line pipe steels in hydrogen environments. With such information, informed decisions can then be made with respect to the feasibility of using pipelines in a large-scale network for hydrogen transportation. In this work, efforts were made to evaluate the fracture toughness of weld centerline and heat affect zone samples from a seam welded pipe in a pure hydrogen environment and hydrogen containing moisture and trace amounts of H2S, replicating green and blue hydrogen environments. Hydrogen flux tests were performed to help understand the difference in the toughness values obtained in the tested environments. Additionally, fatigue crack growth rate tests were performed to understand the impact of hydrogen on fatigue crack growth rates. The obtained information is expected to be used as the inputs to assess the feasibility of a large-scale industrial pipeline network for hydrogen transmission.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.5006/c2026-00391first seen 2026-05-15 19:51:59
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