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代替タイトル: Proposal of diffusion model obtained from time-resolved hydrogen permeation measurement with operand hydrogen microscopes

説明:

One of the biggest issues in the hydrogen economy is “hydrogen embrittlement” of metal induced by hydrogen entering and diffusing into the material. Hydrogen diffusion in metallic materials is difficult to grasp owing to the non-uniform compositions and structures of metal. Here a time-resolved “operando hydrogen microscope” was used to interpret local diffusion behavior of hydrogen in the microstructure of a stainless steel with austenite and martensite structures. The martensite/austenite ratios differed in each local region of the sample. The path of hydrogen permeation was inferred from the time evolution of hydrogen permeation in several regions. We proposed a model of hydrogen diffusion in a dual-structure material and verified the validity of the model by simulations.

権利情報:

• Creative Commons BY-NC Attribution-NonCommercial 4.0 International
  

キーワード: hydrogen visualization, hydrogen permeation, diffusion model, stainless steel

刊行年月日: 2021-12-10

出版者: Surface Science Society Japan

掲載誌:

• Vacuum and Surface Science (ISSN: 24335835) vol. 64 issue. 12 p. 568-574

研究助成金:

• JSPS 18H03849

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.1380/vss.64.568

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更新時刻: 2024-01-05 22:13:20 +0900

MDRでの公開時刻: 2023-12-28 16:30:13 +0900