The changes in the electronic structure of B2 FeAl alloy with a Fe antisite and absorbed hydrogen

Gonzalez, Estela Andrea; Jasen, Paula Verónica; Luna, R.; Bechthold, P.; Juan, Alfredo; Brizuela, G.

doi:10.1016/j.physb.2009.08.020

Cited by 5 publications

(1 citation statement)

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“…Such as hydrogen trapping by vacancy type defects possibly suppress the hydrogen induced embrittlement. First principle calculations reveal strong interactions between vacancies and hydrogen atoms in B2 ordered Fe-Al alloys [11,12]. However, the effect of the state of trapped hydrogen on the properties of hydrogen implanted metal is unclear.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen trapping behavior at vacancies introduced by electron irradiation in B2 ordered Fe base alloys

Hori¹,

Sumikura²,

Sugita³

et al. 2023

JJAP Conf. Proc.

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We have investigated the hydrogen trapping behavior in B2 ordered Fe-50%Al alloy with electron irradiation followed by hydrogen implantation by using positron annihilation techniques, Xray diffraction and thermal desorption spectrometry (TDS). Positron annihilation lifetime and coincidence Doppler broadening measurement results showed that V Fe in B2 type Fe-Al alloys are dominantly introduced by low energy (2 MeV) electron irradiation, and more complex vacancy type defects are formed by high energy (8 MeV) electron irradiation. The result of TDS measurement showed that hydrogen atoms are trapped by vacancy type defects, the resulting hydrogen desorption behavior is different for 2 MeV and 8 MeV irradiation cases.

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Section: Introductionmentioning

confidence: 99%