Szczegóły publikacji
Opis bibliograficzny
Change of Cr atoms distribution in $Fe_{85}Cr_{15}$ alloy caused by 250 keV $He^{+}$ ion irradiation to different doses / S. M. DUBIEL, J. ŻUKROWSKI // Journal of Alloys and Compounds ; ISSN 0925-8388. — 2015 — vol. 624, s. 165–169. — Bibliogr. s. 169, Abstr. — J. Żukrowski – dod. afiliacja: ACMiN
Autorzy (2)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 86515 |
|---|---|
| Data dodania do BaDAP | 2014-12-15 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.jallcom.2014.11.070 |
| Rok publikacji | 2015 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Journal of Alloys and Compounds |
Abstract
Redistribution of Cr atoms in a Fe85Cr15 alloy caused by its irradiation with 250 keV He+ ions to different doses, D = 8 center dot 1016, 16 center dot 1016 and 48 center dot 1016 ions/cm(2) was investigated by means of conversion electrons Mossbauer spectroscopy. The redistribution was expressed in terms of the Warren-Cowley short-range order parameters alpha 1, alpha 2 and alpha 12 pertaining to the first (1NN), second (2NN) and both i.e. 1NN + 2NN shells, respectively. Clear evidence was found, both for non-irradiated and irradiated samples that the actual distribution of Cr atoms is characteristic of the shell, and for a given shell it depends on the irradiation dose. In particular, alpha(1) is positive, hence indicates an under population of Cr atoms in 1NN with respect to the random case, alpha(2) is negative, giving evidence thereby that 2NN is overpopulated by Cr atoms, and alpha(12) is weakly positive. Under the applied irradiation the number of Cr atoms in both neighbor shells decreased signifying thereby a clustering of Cr atoms. The underlying decrease of Cr concentration within the 1NN- 2NN volume around the probe Fe atoms was estimated at 1.5 at.% ranging between 2.1 for the lowest and 0.8 at.% for the highest dose. (C) 2014 Elsevier B.V. All rights reserved.
