Radiation effects in bulk nanocrystalline FeAl alloy

Autor(en)

Ascar Kilmametov, Adam G. Balogh, Mohammad Ghafari, Christoph Gammer, Clemens Mangler, Christian Rentenberger, R Z Valiev, Horst Hahn

Abstrakt

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 Mossbauer 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.

Organisation(en)

Physik Nanostrukturierter Materialien

Externe Organisation(en)

Ufa State Aviation Technical University, Technische Universität Darmstadt, Karlsruher Institut für Technologie

Journal

Radiation Effects and Defects in Solids

Band

167

Seiten

631-639

Anzahl der Seiten

9

ISSN

1042-0150

DOI

https://doi.org/10.1080/10420150.2012.666241

Publikationsdatum

2012

Peer-reviewed

Ja

ÖFOS 2012

103018 Materialphysik, 103030 Strahlenphysik

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/83d7f6e1-b67e-40a9-9183-4e2610ed9430