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説明:

Hydrogen embrittlement has long been an obstacle to the development of safe infrastructure. However, in contrast to hydrogen's embrittling effect, recent research has revealed that the addition of hydrogen improves both the strength and uniform elongation of AISI Type 310S austenitic stainless steel. A detailed understanding of how hydrogen affects the deformation mechanism of this steel could pave the way for the development of more advanced materials with superior properties. In the present study, in situ neutron diffraction experiments were conducted on Type 310S steel with and without hydrogen-charged to investigate the effect of hydrogen on the deformation mechanism. In addition to the effect of solid-solution strengthening by hydrogen, the q-value, a parameter representing the proportion of edge and screw dislocations in the accumulated dislocations, was quantitatively evaluated using CMWP analysis on neutron diffraction patterns. The comparison of q-values between the hydrogen-charged and non-charged samples reveals that hydrogen has minimal effect on dislocation character in Type 310S steel.

権利情報:

• In Copyright
  

キーワード: Austenitic steel, Hydrogen, Plastic deformation, Neutron diffraction

刊行年月日: 2024-11-10

出版者: The Iron and Steel Institute of Japan

掲載誌:

• Proceedings of International Symposia on Steel Science (ISSN: 27596621) p. 237-240

会議: The 7th International Symposium on Steel Science 2024 (ISSS) (2024-11-11 - 2024-11-14)

研究助成金:

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.2355/isijisss.2024.0_237

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更新時刻: 2025-04-21 12:30:27 +0900

MDRでの公開時刻: 2025-04-21 12:20:30 +0900