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Radiation effects in bulk nanocrystalline FeAl alloy

Kilmametov, A. ; Balogh, A. ; Ghafari, M. ; Gammer, C. ; Mangler, C. ; Rentenberger, C. ; Valiev, R. ; Hahn, H. (2012):
Radiation effects in bulk nanocrystalline FeAl alloy.
In: Radiation Effects and Defects in Solids, 167 (8), pp. 631-639. Taylor & Francis, ISSN 1042-0150,
[Article]

Abstract

Bulk-ordered nanocrystalline FeAl intermetallic compound with a grain size of 35 nm was prepared using severe plastic deformation. Nanocrystalline and coarse-grained counterparts with a grain size of 160 nm were subjected to 1.5 MeV Ar+ ion irradiation at room temperature. Enhanced irradiation resistance of nanocrystalline FeAl has clearly been identified by means of grazing-incidence X-ray diffraction and Mössbauer spectroscopy. At the identical damage dose, the nanocrystalline FeAl retains long-range ordering in the B2-superlattice structure, while the coarse-grained state becomes already substantially disordered. The present experimental studies verify that fully dense ordered intermetallic alloys are promising candidate materials for radiation environments.

Item Type: Article
Erschienen: 2012
Creators: Kilmametov, A. ; Balogh, A. ; Ghafari, M. ; Gammer, C. ; Mangler, C. ; Rentenberger, C. ; Valiev, R. ; Hahn, H.
Title: Radiation effects in bulk nanocrystalline FeAl alloy
Language: English
Abstract:

Bulk-ordered nanocrystalline FeAl intermetallic compound with a grain size of 35 nm was prepared using severe plastic deformation. Nanocrystalline and coarse-grained counterparts with a grain size of 160 nm were subjected to 1.5 MeV Ar+ ion irradiation at room temperature. Enhanced irradiation resistance of nanocrystalline FeAl has clearly been identified by means of grazing-incidence X-ray diffraction and Mössbauer spectroscopy. At the identical damage dose, the nanocrystalline FeAl retains long-range ordering in the B2-superlattice structure, while the coarse-grained state becomes already substantially disordered. The present experimental studies verify that fully dense ordered intermetallic alloys are promising candidate materials for radiation environments.

Journal or Publication Title: Radiation Effects and Defects in Solids
Journal Volume: 167
Issue Number: 8
Publisher: Taylor & Francis
Uncontrolled Keywords: radiation damage, nanocrystalline materials, Mössbauer spectroscopy
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Material Analytics
11 Department of Materials and Earth Sciences > Material Science > Joint Research Laboratory Nanomaterials
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 16 Jun 2014 12:12
URL / URN: http://dx.doi.org/10.1080/10420150.2012.666241
Additional Information:

Special Issue: PROCEEDINGS OF IMRC 2011 – SYMPOSIUM 13 ON ADVANCES IN ION-BEAM TECHNIQUES AND APPLICATIONS

Identification Number: doi:10.1080/10420150.2012.666241
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