Compatibility of cold drawn and heat treated austenitic stainless steel (316L) tube for green hydrogen applications
冷間引抜きおよび熱処理されたオーステナイト系ステンレス鋼(316L)管のグリーン水素用途への適合性 (AI 翻訳)
Shaanika S, Böllinghaus T, Sobol O, Alweendo T, Johnson O, Krafft E, Ravi S
🤖 gxceed AI 要約
日本語
本研究は、グリーン水素用途の316Lステンレス鋼管について、冷間引抜き状態と溶接熱影響を模擬した熱処理状態での水素脆化感受性を評価した。高圧水素環境下での低速ひずみ速度引張試験の結果、いずれの状態でも強度と延性が向上し、延性破壊を示した。この結果は、水素インフラにおける316L管の安全性と適合性の理解に貢献する。
English
This study evaluates the hydrogen embrittlement susceptibility of 316L stainless steel tubes in cold-drawn and heat-treated (simulating weld thermal cycle) states for green hydrogen applications. Slow strain rate tensile tests under high-pressure hydrogen showed enhanced strength and ductility with ductile fracture. The findings contribute to understanding the safety and compatibility of 316L tubing for hydrogen infrastructure.
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
日本は水素社会の実現を目指しており、水素輸送・貯蔵インフラの安全性確保は最重要課題である。本論文は、実用的な316L管の水素環境下での機械的特性を提供し、日本の水素ステーションやパイプライン設計の基準策定に寄与する。
In the global GX context
As global hydrogen infrastructure expands, material compatibility under high-pressure hydrogen is critical. This paper provides empirical data on 316L stainless steel tubing, supporting safe design standards for hydrogen transport and storage systems worldwide.
👥 読者別の含意
🔬研究者:Provides experimental data on hydrogen effects on mechanical properties of 316L in different processing states.
🏢実務担当者:Guides material selection and qualification for hydrogen tube systems, reducing procurement risk.
🏛政策担当者:Informs safety standards and certification for hydrogen infrastructure materials.
📄 Abstract（原文）
<title>Abstract</title> <p> Austenitic stainless steels are widely used for hydrogen handling and transport due to their corrosion resistance and generally low susceptibility to hydrogen-assisted cracking. However, soft zones introduced to material during fabrication and repairs or in services remains a concern for tube-based hydrogen distribution systems. In this work, a 316L (14404) cold drawn 1/2"(12.7 mm outer diameter) tube with wall thickness 1 mm was investigated in the cold drawn state and after weld-thermal cycle simulation by joule heating (heat-treated) state. Tube sections were machined into hollow tensile specimens and tested by slow strain rate tensile (SSRT) loading at the nominal strain rates of 1E-4 s <sup>− 1</sup> , 1E-5 s <sup>− 1</sup> and 1E-6 s <sup>− 1</sup> under the in-situ gaseous hydrogen and in argon as reference (150 bar, room temperature). Additional precharging conditions were performed in the ex-situ gaseous hydrogen autoclave precharging (1000 bar, 150°C, 21 days) before SSRT. Tensile properties (ultimate tensile strength, yield strength, elongation, and reduction of area) were quantified, and hydrogen effects were expressed using degradation indices. The SSRT results at all strain rates indicate enhancement of strength and ductility in both the cold drawn and heat-treated states. Across the investigated conditions, fracture surfaces showed predominantly ductile microvoid coalescence fracture. These findings contribute to the understanding of the compatibility of 316L tubing for hydrogen applications under the investigated conditions while highlighting the importance of processing state and hydrogen interactions. </p>
🔗 Provenance — このレコードを発見したソース
- Research Square https://doi.org/10.21203/rs.3.rs-9367972/v1first seen 2026-06-10 04:33:08
🔔 こうした論文の新着を逃したくない方は キーワードアラート に登録（無料・3キーワードまで）。
gxceed は公開メタデータに基づく研究支援データセットです。要約・翻訳・解説は AI 支援で生成されています。 最終的な解釈・検証は利用者が原典資料に基づいて行うことを前提とします。