title: Characterization of the Fe-rich corner of Al-Fe-Si-Ti.
abstract: The quaternary system Al-Fe-Si-Ti was studied in the iron-rich corner for sections at 50, 60 and 70 at.% Fe at 900 °C. Isothermal phase equilibria were investigated by a combination of optical microscopy, X-ray powder diffraction (XRD) followed by Rietveld refinement and Electron Probe Microanalysis (EPMA). Phase boundaries of the phases, in particular of the Laves phase (Fe2Ti) and of the extended phase field of A2/B2/D03, were investigated. Selected samples containing the Laves phase and the B2 phase were characterized by microhardness measurements at different compositions throughout the quaternary homogeneity range of the phases.
authors.affiliation: Department of Inorganic Chemistry/Materials Chemistry, University of Vienna, Währingerstraße Str. 42, A-1090 Vienna, Austria.
authors.forename: Martin C J
authors.initials: MC
authors.lastname: Marker
authors.affiliation: EMPA, Swiss Federal Laboratories for Materials Science & Technology, Laboratory for Joining and Interface Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland.
authors.forename: Liliana I
authors.initials: LI
authors.lastname: Duarte
authors.affiliation: EMPA, Swiss Federal Laboratories for Materials Science & Technology, Laboratory for Joining and Interface Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland.
authors.forename: Christian
authors.initials: C
authors.lastname: Leinenbach
authors.affiliation: Department of Inorganic Chemistry/Materials Chemistry, University of Vienna, Währingerstraße Str. 42, A-1090 Vienna, Austria.
authors.forename: Klaus W
authors.initials: KW
authors.lastname: Richter
keywords: A. Iron aluminides; A. Laves phases; A. Multiphase intermetallics; B. Mechanical properties at ambient temperature; B. Phase diagrams