Mechanical properties and microstructure of AlFeX alloys

The mechanical behavior and microstructure of aluminum alloys for high temperature applications, prepared by rapid solidification and powder metallurgy techniques, have been observed. These alloys contain high concentrations of transition elements which form thermally stable precipitates. Tensile te...

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Bibliographic Details
Published in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 1994-10, Vol.186 (1), p.55-64
Main Authors: Ehrström, J.C., Pineau, A.
Format: Article
Language:English
Subjects:
Applied sciences
Cross-disciplinary physics: materials science
rheology
Deformation, plasticity, and creep
Exact sciences and technology
Materials science
Metals. Metallurgy
Physics
Treatment of materials and its effects on microstructure and properties
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Summary:The mechanical behavior and microstructure of aluminum alloys for high temperature applications, prepared by rapid solidification and powder metallurgy techniques, have been observed. These alloys contain high concentrations of transition elements which form thermally stable precipitates. Tensile tests were performed at room temperature, at 77 K and at high temperature. The microstructure is described in terms of precipitation and dislocation structure. Samples deformed at different temperatures were observed. The behavior of alloys of this type is discussed, introducing the effect of an internal stress. Special attention is devoted to the ductility dip frequently observed in such alloys.
ISSN:0921-5093
1873-4936
DOI:10.1016/0921-5093(94)90305-0