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As hydrogenHydrogen adoption expands in support of decarbonization, fitness-for-service assessment of materials increasingly depends on testing under gaseous hydrogenHydrogen exposure, where service-like conditions can induce hydrogen embrittlementHydrogen embrittlement (HE). Conducting such tests is challenging because of the complex interactions between hydrogenHydrogen and metals, making the selection of in-situ or ex-situ methods critical for obtaining meaningful results. This work presents the development of modular infrastructure for both in-situ and ex-situ HE testing at the High-Performance Powertrain Materials Laboratory (HPPM). Key elements include a gas management system (GMS) for safe, low-impurity hydrogenHydrogen delivery; an autoclave testing setup for fractureFracture-mechanics tests; a hollow specimen setup in which the specimen itself serves as a miniature pressure vessel; a small punch test (SPT) fixture requiring only 16 × 16 × 0.5 mm samples; and a gaseous hydrogenHydrogen permeation test cell. Each setup addressed distinct technical complexities such as impurity control, sealing, alignment, and load-path compliance through specific design solutions. Preliminary experimental findings are presented, demonstrating the functionality of the developed systems and offering insights into hydrogenHydrogen-related material behaviour. These developments provide a practical foundation for reproducible hydrogenHydrogen testing and support broader efforts toward standardized fitness-for-service assessment.

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Designing and Developing Gaseous In-Situ Testing Infrastructure for Hydrogen Embrittlement Characterization

  • 会议论文

  • 发表日期：

    2026年

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  • Rashiga Walallawita,
  • Matthew C. Hinchliff,
  • Matthew Scott,
  • Dimitry Sediako

摘要

As hydrogenHydrogen adoption expands in support of decarbonization, fitness-for-service assessment of materials increasingly depends on testing under gaseous hydrogenHydrogen exposure, where service-like conditions can induce hydrogen embrittlementHydrogen embrittlement (HE). Conducting such tests is challenging because of the complex interactions between hydrogenHydrogen and metals, making the selection of in-situ or ex-situ methods critical for obtaining meaningful results. This work presents the development of modular infrastructure for both in-situ and ex-situ HE testing at the High-Performance Powertrain Materials Laboratory (HPPM). Key elements include a gas management system (GMS) for safe, low-impurity hydrogenHydrogen delivery; an autoclave testing setup for fractureFracture-mechanics tests; a hollow specimen setup in which the specimen itself serves as a miniature pressure vessel; a small punch test (SPT) fixture requiring only 16 × 16 × 0.5 mm samples; and a gaseous hydrogenHydrogen permeation test cell. Each setup addressed distinct technical complexities such as impurity control, sealing, alignment, and load-path compliance through specific design solutions. Preliminary experimental findings are presented, demonstrating the functionality of the developed systems and offering insights into hydrogenHydrogen-related material behaviour. These developments provide a practical foundation for reproducible hydrogenHydrogen testing and support broader efforts toward standardized fitness-for-service assessment.