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Hydrogen Embrittlement of Metallic Materials Lab
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A hydrogen storage systems lab that elucidates the hydrogen embrittlement of metallic materials.
AboutAbout the lab
Toward safe, low-cost hydrogen storage, transport, and supply.
The Hydrogen Storage Systems Lab studies the hydrogen embrittlement of metallic materials used in hydrogen gas environments.
In addition to elucidating the mechanisms of hydrogen embrittlement, the lab works to establish selection criteria for metallic materials and strength design methods for equipment that uses hydrogen.
Using equipment such as apparatus that can run material tests in high-pressure hydrogen gas, students operate the equipment themselves and carry out experiments.
The lab is also introduced on its website under the name "Matsunaga Lab."
Key terms
- Hydrogen embrittlement
- A phenomenon in which hydrogen enters a metal and lowers its strength and ductility.
- Fatigue crack growth
- A phenomenon in which a crack formed in a metal by repeated loading gradually spreads.
- Multiscale analysis
- Analysis that examines a material across multiple scales, from small to large.
NewsLab news
An undergraduate student received the Excellent Presentation Award at the 79th General Meeting and Lecture Meeting of the Kyushu Branch of the Japan Society of Mechanical Engineers
A master's student received the Young Researcher Award at the 12th Academic Lecture Meeting of the Kyushu Branch of the Society of Materials Science, Japan
A master's student received the Young Researcher Award at the 11th Academic Lecture Meeting of the Kyushu Branch of the Society of Materials Science, Japan
An undergraduate student received the Excellent Presentation Award at the 55th Graduation Research Presentation Meeting for Student Members of the Kyushu Student Chapter of the Japan Society of Mechanical Engineers
A master's student received the Young Researcher Award at the 10th Academic Lecture Meeting of the Kyushu Branch of the Society of Materials Science, Japan
ResearchResearch themes
In equipment that uses hydrogen, various metal components are exposed to hydrogen gas environments, and when hydrogen enters the inside of a material, hydrogen embrittlement occurs, lowering its strength and ductility. Through elucidating the mechanisms of hydrogen embrittlement, establishing selection criteria for metallic materials used in hydrogen gas environments, and establishing strength design methods for hydrogen equipment, the lab aims to contribute to building safer, lower-cost hydrogen storage, transport, and supply systems.
*Illustrative imageEffects of hydrogen on the strength of metals
The lab investigates the effects of hydrogen on the strength of various metallic materials, including multiscale analysis of the hydrogen embrittlement characteristics of high-strength materials and fatigue crack growth in stainless steel and high-strength martensitic steel. It also studies 3D additively manufactured Ni-based superalloy 718.
*Illustrative imageOther fatigue strength research
The lab investigates the tension-compression fatigue and torsional fatigue strength characteristics of the Ni-based superalloy Alloy 718, and the effect of microstructure on the torsional fatigue limit of bainitic steel.
MembersFaculty
The members of the Hydrogen Storage Systems Lab consist of faculty, staff, and doctoral, master's, and undergraduate students, and the lab also accepts international students.As of 2026
- ProfessorHisao Matsunaga
- Assistant ProfessorSangchul Park
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Liquid hydrogen storage tank at Launch Pad 39B” TomFawls / CC BY-SA 3.0 (cropped)
- Effects of hydrogen on the strength of metals: “Alloy and metal samples - Beryllium-Copper, Inconel, Steel, Titanium, Aluminum, Magnesium” Bill Abbott / CC BY-SA 2.0 (cropped)
- Other fatigue strength research: “Fatigue testing” Vedantengg / CC BY-SA 3.0 (cropped)
- Related lab (Strength of Metallic Micro- and Nanomaterials Lab): “Cu-Scheibe” Alchemist-hp (pse-mendelejew.de) / CC BY-SA 3.0 de (cropped)
- Related lab (Metallic Micro/Nano Materials Strength Lab (Toshiyuki Kondo)): “Thin film solar on standing seam metal roof” Architectsea / CC BY-SA 3.0 (cropped)
- Related lab (Hydrogen Storage Systems Lab): “Hydrogen pipelines” EERE / Public domain (cropped)
- Related lab (Metallic Materials Evaluation in Hydrogen Environments Lab (Sungcheol Park)): “Hydrogen filling station in Minato-ku 2” Syced / CC0 (cropped)
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