Conferences

D.Pavlyuchkov,
 
B.Pzhepyuzhinskiy,
 
B.Grushko,
  

I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Omeliana Pritsaka str.,3, Kyiv, 03142, Ukraine
Powder Metallurgy - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2008, #11/12
http://www.materials.kiev.ua/article/1324

Abstract

The paper examines alloys in the ternary Al–Cr–Fe system in the region of compositions associated earlier with the extensive terminal Fe solid solutions in the hexagonal Al4Cr (μ) binary phase in which iron reaches almost 12 at.%. Scanning electron microscopy, x-ray powder diffraction, and electron diffraction establish that the solubility of Fe in the μ-phase is substantially lower. Alloys Al76Cr19Fe5, Al76Cr16Fe8 and Al75Cr16Fe9 annealed at 1000 °C have a complex base-centered orthorhombic structure with a ≈ 3.27 nm, b ≈ 1.24 nm, and c ≈ 2.34 nm.


ELECTRON DIFFRACTION, METALLIDES, PHASE EQUILIBRIA, SCANNING ELECTRON MICROSCOPY