Effect of nitrogen-addition on the absorption and diffusivity of hydrogen in a stable austenitic stainless steel

Arnaud Macadre, Takuro Masumura, Ryota Manabe, Toshihiro Tsuchiyama, Setsuo Takaki

    Research output: Contribution to journalArticlepeer-review

    12 Citations (Scopus)

    Abstract

    An austenitic stainless steel (SUS316L) was prepared with and without addition of solute nitrogen. The effect of cold-working and nitrogen addition on hydrogen solubility and hydrogen diffusion were investigated. High-pressure hydrogen gas and thermal desorption techniques were used. Increasing dislocation densities were related to a higher hydrogen content and higher nitrogen content related to a lower hydrogen content. Both dislocations and nitrogen had a negligible effect on hydrogen diffusion. The different hydrogen contents in the dislocations and the metal lattice, as well as trapping and diffusion activation energies explained the lack of effect of dislocations on hydrogen solubility.

    Original languageEnglish
    Pages (from-to)1263-1271
    Number of pages9
    JournalInternational Journal of Hydrogen Energy
    Volume44
    Issue number2
    DOIs
    Publication statusPublished - Jan 8 2019

    All Science Journal Classification (ASJC) codes

    • Renewable Energy, Sustainability and the Environment
    • Fuel Technology
    • Condensed Matter Physics
    • Energy Engineering and Power Technology

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