Deformation behaviour of iron-rich iron-aluminum alloys at low temperatures

被引:128
作者
Herrmann, J [1 ]
Inden, G [1 ]
Sauthoff, G [1 ]
机构
[1] Max Planck Inst Eisenforsch GmbH, D-40237 Dusseldorf, Germany
关键词
metal & alloys (iron alloys); ordering (short range); mechanical properties (yield phenomena);
D O I
10.1016/S1359-6454(03)00089-2
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The deformation behaviour of binary monocrystalline and polycrystailine Fe-Al alloys with Al contents up to 18 at.% and only low unavoidable impurity contents-in particular less than 100 wt.ppm C-has been studied at room temperature and -100degreesC. The effects of quenching and annealing treatments on the behaviour of as-cast materials were investigated in order to clarify the dependence of strength and ductility on Al content and short-range ordering. It was found that the stress-strain behaviour at low temperatures is controlled primarily by Al solid-solution hardening and quenched-in excess vacancies with only minor effects of short-range ordering. (C) 2003 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:2847 / 2857
页数:11
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