The effect of crystallization rate on the microstructure and the orientation relationship of (Al) and CuAl₂ phases in the eutectic alloy was investigated using a step-by-step beam scan on the computer controlled transmission electron microscope.

The microstructure of this alloy changed from the approximately parallel lamellar structure into the eutectic colony structure depending on the rate of the crystallization.

On the basis of the measurement of the individual orientations in the sections perpendicular to the crystallization direction the orientation maps were constructed. The resulting data enabled to link the microstructure development in the analysed alloy to the orientation relationships between (Al) and CuAl₂ phases and the preferred orientations.

The dominant orientation relationship identified in all analysed samples was (111) (Al) II (2-11) CuAl₂, [-110] (Al) II [120] CuAl₂. In the small irregular areas the appearance of another orientation relationships have been found.

• Legal notice:
  

  Copyright (c) Pielaszek Research, all rights reserved.
  The above materials, including auxiliary resources, are subject to Publisher's copyright and the Author(s) intellectual rights. Without limiting Author(s) rights under respective Copyright Transfer Agreement, no part of the above documents may be reproduced without the express written permission of Pielaszek Research, the Publisher. Express permission from the Author(s) is required to use the above materials for academic purposes, such as lectures or scientific presentations.
  In every case, proper references including Author(s) name(s) and URL of this webpage: https://science24.com/paper/8347 must be provided.

1. Cu-Ti Base Multicomponent Amorphous and Silver Nanocrystalline Composites
2. HRTEM and TEM studies of amorphous structures in ZrNiTiCu base alloys obtained by rapid solidification or ball milling
3. Powder metallurgy technology of NiTi shape memory alloy
4. Application of orientation mapping in TEM and SEM for the study of inhomogeneous microstructural evolution during annealing of aluminum alloy with bimodal particle distribution
5. The role of radiation defects in HgCdTe epitaxial growth
6. Interface dynamics of melt instabilities on semiconductor surfaces
7. Sequence of phases formations in Al-Mg-Si alloy with Sc and Zr addition during heat treatment
8. Search for New Metallic Glass Compositions in NiZrTi Base Alloys Near Multicomponent Eutectic Positions