Hydrogen embrittlement in Ni superalloys
Analysis based on 8 articles · First reported Jul 27, 2026 · Last updated Jul 29, 2026
The findings may slow the adoption of hydrogen as a fuel for gas turbines, impacting companies developing hydrogen infrastructure and turbine manufacturers. However, they also guide alloy design, potentially benefiting materials science firms.
An international research team led by the Max Planck Institute for Sustainable Materials (MPI-SusMat), East China University of Science and Technology, and Hunan University published findings in Nature Materials showing that hydrogen-induced embrittlement in Nickel-base superalloys is at least twice as severe at elevated temperatures (400°C) as at ambient temperatures. The degradation is caused by carbide decomposition and methane formation, posing challenges for hydrogen-fueled gas turbines in power generation and aviation. The study suggests replacing carbides with alternative strengthening mechanisms to design hydrogen-resistant alloys.
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