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Hydrogen Depth-Profiling and Desorption Kinetics in Rapidly Solidified Al-Fe Alloys

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ICAA13 Pittsburgh

Abstract

Hydrogen surface segregation and trapping in rapidly solidified Al-0.2; 0.5 at % Fe alloys has been studied through elastic recoil detection technique, Rutherford backscattering spectroscopy and thermal desorption spectroscopy. It was detected that most hydrogen was localized in the subsurface regions (400 nm) and estimated to be 3.6 at % in Al-0.2 Fe alloy. Strong hydrogen segregation on air-side surface in alloy showed increase in its content up to 9.6 at % after heat treatment at 500°C. Our results indicated that solute-vacancy interactions and microstructural features affect hydrogen behaviour in Al-Fe alloys. The hydrogen trapping at iron atoms in the substitutional sites was concluded to be predominant.

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Author information

Authors and Affiliations

  1. Belarusian State University of Informatics and Radioelectronics, P. Brovki Str. 6, Minsk, 220013, Belarus

    Iya I. Tashlykova-Bushkevich

  2. Ibaraki University, Nakanarusawa Str. 4-12-1, Hitachi, Ibaraki, 316-8511, Japan

    Goroh Itoh

Authors
  1. Iya I. Tashlykova-Bushkevich
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  2. Goroh Itoh
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Editor information

Editors and Affiliations

  1. Alcoa Technical Center, Pittsburgh, PA, USA

    Hasso Weiland (Technical Fellow) (Technical Fellow)

  2. Carnegie Mellon University, USA

    Anthony D. Rollett (Professor of Materials Science & Engineering, Chair of the International Committee) (Professor of Materials Science & Engineering, Chair of the International Committee)

  3. Alcoa Technical Center, USA

    William A. Cassada (Director) (Director)

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© 2012 TMS (The Minerals, Metals & Materials Society)

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Tashlykova-Bushkevich, I.I., Itoh, G. (2012). Hydrogen Depth-Profiling and Desorption Kinetics in Rapidly Solidified Al-Fe Alloys. In: Weiland, H., Rollett, A.D., Cassada, W.A. (eds) ICAA13 Pittsburgh. Springer, Cham. https://doi.org/10.1007/978-3-319-48761-8_9

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