Bulk-ordered nanocrystalline FeAl intermetallic compound with a grain size of 35nm was prepared using severe plastic deformation. Nanocrystalline and coarse-grained counterparts with a grain size of 160nm were subjected to 1.5MeV 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 Mssbauer 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.
Original language | English |
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Pages (from-to) | 631-639 |
Number of pages | 9 |
Journal | Radiation Effects and Defects in Solids |
Volume | 167 |
Issue number | 8 |
DOIs | |
State | Published - 1 Aug 2012 |
Externally published | Yes |
ID: 35168976