Phase Diagram Mapping of the Fe3Al-Cr-Mo-C Pseudo-Quaternary System at 800 °C Using a New Diffusion-Multiple Technique

Kobayashi, Satoru; Zaefferer, Stefan

doi:10.1007/s11669-008-9281-4

Cited by 6 publications

(1 citation statement)

References 12 publications

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“…2. Phase equilibria in the Fe 3 Al -Cr -Mo -C pseudo-quaternary system were determined by a new diffusion multiple technique [80,81] and the sequence of carbide precipitation in the temperature range 700 -1000 8C was studied by high-resolution scanning electron microscopy (HRSEM) where phases were identified by electron backscattering diffraction (EBSD) and their compositions were established by energy-dispersive spectrometry (EDS) [82].…”

Section: Fe -Al -X and Higher-order Systemsmentioning

confidence: 99%

Fe–Al materials for structural applications at high temperatures: Current research at MPIE

Palm

2009

International Journal of Materials Research

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Fe-Al materials for structural applications at high temperatures: Current research at MPIEFe -Al-based materials possess a number of properties which make them highly interesting for the development of new light-weight structural materials. However, lack of strength at high temperatures and limited ductility at ambient temperatures so far has hindered any wider application of these materials. Recent progress achieved within an inter-departmental research initiative at the Max-Planck-Institut für Eisenforschung GmbH is reviewed here. Based on a sound knowledge of physical and thermodynamic properties and careful analysis of the phase equilibria, various alloy systems have been investigated which offer different mechanisms for strengthening Fe -Al-based materials at high temperatures. By applying these mechanisms Fe -Al-based alloys with sufficient strength for structural applications at least between 650 -800 8C have been developed. For these alloys processing routes such as rolling and forging have been demonstrated. Low ductility is still a crucial issue, but measures exist for improving ductility, e. g. by refining the microstructure through thermo-mechanical treatment. It has also been shown that iron aluminides not only show superior corrosion resistance in oxidising and sulphidising atmospheres but also in other hostile environments like carburising atmospheres and under molten salts.

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Section: Fe -Al -X and Higher-order Systemsmentioning

confidence: 99%