Hydrogen effects on strain localization in FCC metals at the initial stage of plastic deformation

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussavertaisarvioitu

Standard

Hydrogen effects on strain localization in FCC metals at the initial stage of plastic deformation. / Yagodzinskyy, Yuriy; Malitckii, Evgenii; Hänninen, Hannu.

International Hydrogen Conference (IHC 2016): Materials Performance in Hydrogen Environments. toim. / B.P. Somerday; P. Sofronis. American Society of Mechanical Engineers, 2017.

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussavertaisarvioitu

Harvard

Yagodzinskyy, Y, Malitckii, E & Hänninen, H 2017, Hydrogen effects on strain localization in FCC metals at the initial stage of plastic deformation. julkaisussa BP Somerday & P Sofronis (toim), International Hydrogen Conference (IHC 2016): Materials Performance in Hydrogen Environments. American Society of Mechanical Engineers, International Hydrogen Conference, Yhdysvallat, 11/09/2016. https://doi.org/10.1115/1.861387_ch37

APA

Yagodzinskyy, Y., Malitckii, E., & Hänninen, H. (2017). Hydrogen effects on strain localization in FCC metals at the initial stage of plastic deformation. teoksessa B. P. Somerday, & P. Sofronis (Toimittajat), International Hydrogen Conference (IHC 2016): Materials Performance in Hydrogen Environments American Society of Mechanical Engineers. https://doi.org/10.1115/1.861387_ch37

Vancouver

Yagodzinskyy Y, Malitckii E, Hänninen H. Hydrogen effects on strain localization in FCC metals at the initial stage of plastic deformation. julkaisussa Somerday BP, Sofronis P, toimittajat, International Hydrogen Conference (IHC 2016): Materials Performance in Hydrogen Environments. American Society of Mechanical Engineers. 2017 https://doi.org/10.1115/1.861387_ch37

Author

Yagodzinskyy, Yuriy ; Malitckii, Evgenii ; Hänninen, Hannu. / Hydrogen effects on strain localization in FCC metals at the initial stage of plastic deformation. International Hydrogen Conference (IHC 2016): Materials Performance in Hydrogen Environments. Toimittaja / B.P. Somerday ; P. Sofronis. American Society of Mechanical Engineers, 2017.

Bibtex - Lataa

@inproceedings{1ccc2ec1519c4fab9fc5f2b37064547a,
title = "Hydrogen effects on strain localization in FCC metals at the initial stage of plastic deformation",
abstract = "Single crystals of pure copper, nickel and AISI 316L austenitic stainless steel were tensile tested in order to study hydrogen effects on the strain localization in form of slip bands appearing on the polished specimen surface. It was found that hydrogen increases markedly, up to 9 {\%}, the stress, which corresponds to the Stage I of plastic deformation. Hydrogen changes markedly the dislocation slip appearance: from the homogeneously distributed single slip lines observed in hydrogen-free specimens to the localized, periodically ordered groups or bands of slip lines in the presence of hydrogen. Observations of the fine structure of the slip bands performed with AFM show that in the presence of hydrogen the slip offset spacing is reduced as compared to that in hydrogen-free specimens. Using positron annihilation spectroscopy it was found that the hydrogen-induced dislocation slip refinement is accompanied by the excessive generation of crystal lattice defects in the form of vacancy clusters. The obtained results for the studied FCC metals are compared and analyzed in terms of the mechanism of double-cross slip and the role of hydrogen in the excessive vacancy generation is discussed.",
keywords = "deformation, metals, hydrogen",
author = "Yuriy Yagodzinskyy and Evgenii Malitckii and Hannu H{\"a}nninen",
year = "2017",
doi = "10.1115/1.861387_ch37",
language = "English",
editor = "B.P. Somerday and P. Sofronis",
booktitle = "International Hydrogen Conference (IHC 2016)",
publisher = "American Society of Mechanical Engineers",
address = "United States",

}

RIS - Lataa

TY - GEN

T1 - Hydrogen effects on strain localization in FCC metals at the initial stage of plastic deformation

AU - Yagodzinskyy, Yuriy

AU - Malitckii, Evgenii

AU - Hänninen, Hannu

PY - 2017

Y1 - 2017

N2 - Single crystals of pure copper, nickel and AISI 316L austenitic stainless steel were tensile tested in order to study hydrogen effects on the strain localization in form of slip bands appearing on the polished specimen surface. It was found that hydrogen increases markedly, up to 9 %, the stress, which corresponds to the Stage I of plastic deformation. Hydrogen changes markedly the dislocation slip appearance: from the homogeneously distributed single slip lines observed in hydrogen-free specimens to the localized, periodically ordered groups or bands of slip lines in the presence of hydrogen. Observations of the fine structure of the slip bands performed with AFM show that in the presence of hydrogen the slip offset spacing is reduced as compared to that in hydrogen-free specimens. Using positron annihilation spectroscopy it was found that the hydrogen-induced dislocation slip refinement is accompanied by the excessive generation of crystal lattice defects in the form of vacancy clusters. The obtained results for the studied FCC metals are compared and analyzed in terms of the mechanism of double-cross slip and the role of hydrogen in the excessive vacancy generation is discussed.

AB - Single crystals of pure copper, nickel and AISI 316L austenitic stainless steel were tensile tested in order to study hydrogen effects on the strain localization in form of slip bands appearing on the polished specimen surface. It was found that hydrogen increases markedly, up to 9 %, the stress, which corresponds to the Stage I of plastic deformation. Hydrogen changes markedly the dislocation slip appearance: from the homogeneously distributed single slip lines observed in hydrogen-free specimens to the localized, periodically ordered groups or bands of slip lines in the presence of hydrogen. Observations of the fine structure of the slip bands performed with AFM show that in the presence of hydrogen the slip offset spacing is reduced as compared to that in hydrogen-free specimens. Using positron annihilation spectroscopy it was found that the hydrogen-induced dislocation slip refinement is accompanied by the excessive generation of crystal lattice defects in the form of vacancy clusters. The obtained results for the studied FCC metals are compared and analyzed in terms of the mechanism of double-cross slip and the role of hydrogen in the excessive vacancy generation is discussed.

KW - deformation

KW - metals

KW - hydrogen

U2 - 10.1115/1.861387_ch37

DO - 10.1115/1.861387_ch37

M3 - Conference contribution

BT - International Hydrogen Conference (IHC 2016)

A2 - Somerday, B.P.

A2 - Sofronis, P.

PB - American Society of Mechanical Engineers

ER -

ID: 11244480