Quenched-in vacancies in Fe-Al alloys

被引：4

作者：

Melikhova, Oksana ^{[1
]}

Cizek, Jakub ^{[1
]}

Prochazka, Ivan ^{[1
]}

Kuriplach, Jan ^{[1
]}

Lukac, Frantisek ^{[1
]}

Cieslar, Miroslav ^{[1
]}

Brauer, Gerhard ^{[2
]}

Anwand, Wolfgang ^{[2
]}

机构：

[1] Charles Univ Prague, Fac Math & Phys, V Holesovickach 2, CR-18000 Prague 8, Czech Republic

[2] Inst Strahlenphys, Forschungszentrum Dresden Rossendorf, D-01314 Dresden, Germany

来源：

PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 6, NO 11 | 2009年 / 6卷 / 11期

关键词：

DEFECTS;

D O I：

10.1002/pssc.200982063

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Quenched-in vacancies in Fe3Al-based intermetallics were studied in this work. A stoichiometric Fe3Al alloy was compared with non-stoichiometric specimens either with a deficiency or with an excess in Al content. Vacancies in specimens quenched from the disordered A2 phase were investigated by three independent techniques of positron lifetime "(LT) studies, slow positron implantation spectroscopy (SPIS) with a continuous slow positron beam, and conicidence Doppler broadening (CDB). It was found that the combination of LT and SPIS enables to determine reliably even very high concentrations of vacancies. Information about the local chemical environment of quenched-in vacancies was obtained from CDB masurements (C) 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：2367 / +

页数：2

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