Microstructures and mechanical properties of Fe3Al-based Fe-Al-C alloys

被引：46

作者：

Schneider, A ^{[1
]}

Falat, L ^{[1
]}

Sauthoff, G ^{[1
]}

Frommeyer, G ^{[1
]}

机构：

[1] Max Planck Inst Eisenforsch GmbH, D-40237 Dusseldorf, Germany

来源：

INTERMETALLICS | 2005年 / 13卷 / 12期

关键词：

iron aluminides (based on Fe3Al); precipitates; mechanical properties at ambient temperature; mechanical properties at high temperatures;

D O I：

10.1016/j.intermet.2005.01.013

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this paper results on the microstructures and mechanical properties of Fe3Al-based Fe-Al-C alloys with strengthening precipitates of the perovskite-type kappa-phase Fe3AlCx are presented. The alloys are prepared by vacuum induction melting and cast into Cu-moulds. The composition of the Fe3Al matrix of the investigated Fe-Al-C alloys varies between 23 and 29 at.% Al. The ternary C-additions range from I to 3 at.%. The microstructures of the alloys are characterised by means of light optical microscopy (LOM). Phase identification is performed by means of X-ray diffraction (XRD). The strength of the alloys as a function of temperature is determined through compression tests. The room-temperature ductility is evaluated by tensile tests. The fracture surfaces of the tensile specimens are analysed using scanning electron microscopy (SEM). (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：1322 / 1331

页数：10

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