Structurally complex Al-Si eutectic structure to resist hydrogen embrittlement in 3D-printed Al alloy
3Dプリントアルミ合金における水素脆性に抵抗する構造的に複雑なAl-Si共晶組織 (AI 翻訳)
Yang S, Fangnon E, Suman S, Aligayev A, Hustak M, Ali MS, Björkstrand R, Ali A, Lian J, Salmi M
🤖 gxceed AI 要約
日本語
本研究は、3DプリントされたAlSi10Mg合金の水素脆性耐性を調査したものです。高速溶融・凝固プロセスで形成される非晶質Al-Si共晶組織が水素を優先的に捕捉し、均一な分布を促進することで従来のアルミ合金よりも高い耐水素脆性を発揮することを発見しました。緑色水素の低コスト貯蔵材料としての可能性を示唆しています。
English
This study investigates hydrogen embrittlement resistance in 3D-printed AlSi10Mg alloy. It identifies an amorphous Al-Si eutectic structure formed during rapid solidification that preferentially traps hydrogen, leading to more homogeneous distribution and enhanced resistance compared to conventional Al alloys. The findings offer new insights for designing hydrogen-resistant aluminum alloys for green hydrogen storage applications.
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
日本はグリーン水素の大規模導入を国家戦略として掲げており、水素脆性の克服は実用化の重要課題です。本研究成果は低コストで製造可能な水素貯蔵材料の開発に寄与し、日本の水素サプライチェーン構築に資する可能性があります。
In the global GX context
Hydrogen embrittlement is a critical barrier to green hydrogen infrastructure globally. This research demonstrates a novel approach using additive manufacturing to create hydrogen-resistant aluminum alloys, which could reduce costs and improve safety in hydrogen storage and transport, supporting the global energy transition.
👥 読者別の含意
🔬研究者:Materials scientists and hydrogen storage researchers gain insights into amorphous structures for hydrogen embrittlement mitigation.
🏢実務担当者:Manufacturers of hydrogen storage tanks and components can explore 3D-printed AlSi10Mg as a cost-effective, HE-resistant material.
🏛政策担当者:Policymakers supporting hydrogen infrastructure should note progress in low-cost, durable materials that could accelerate deployment.
📄 Abstract（原文）
<title>Abstract</title> <p>The development of green hydrogen as an energy carrier is hindered by hydrogen embrittlement (HE) from materials perspective. HE phenomenon leads to premature failure of metallic materials. Reducing HE while maintaining low production costs remains a major challenge for industry. In this study, the hydrogen behavior of 3D-printed AlSi10Mg was investigated, owing to its potential as a low-cost hydrogen storage material. A unique amorphous Al–Si eutectic structure, formed during the rapid melting and solidification process of 3D printing, was identified. Both simulations and experimental results revealed that hydrogen is preferentially trapped within this amorphous Al–Si eutectic structure. The non-crystalline nature of this phase promotes a more homogeneous hydrogen distribution in AlSi10Mg, thereby enhancing its resistance to HE compared with conventional Al-based alloys. For the first time, these findings provide fully new insights into the design of and mechanical performance of HE-resistant aluminum alloys containing amorphous structures formed through additive manufacturing processes.</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-9985723/v1first seen 2026-06-16 04:30:19
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