期刊
INTERMETALLICS
卷 13, 期 12, 页码 1286-1295出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.intermet.2004.10.015
关键词
iron aluminides (based on FeAl); ternary alloy systems; alloy design; phase diagrams; mechanical properties at ambient temperature; mechanical properties at high temperatures
Fe-Al-based alloys, i.e. alloys which contain either disordered A2 alpha-(Fe,Al), B2-ordered FeAl or D0(3)-ordered Fe3Al as majority phase, have a considerable potential for developing materials for structural applications, but insufficient strength and creep resistance have been identified as obstacles for the use of Fe-Al-based alloys at high temperatures. At the 'Discussion Meeting on the Development of Innovative Iron Aluminium Alloys' held at the Max-Planck-Institut fur Eisenforschung GmbH, Dusseldorf on March, 9th 2004 a couple of presentations were made with emphasis on improving these properties at high temperatures. In the current article those strengthening mechanisms which are provided by the phase diagram-solid-solution hardening, strengthening by precipitates, or ordering-are reviewed. Besides results obtained for the binary Fe-Al system special emphasis is put forward to those ternary systems for which results have been presented at the 'Discussion Meeting'. Published by Elsevier Ltd.
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