Isothermal Sections of Phase Equilibria in the Al-AlCo-AlNi System
Dedicated to Professor Dr. Jens-Boie Suck on the occasion of his 60th birthday
METADATA ONLY
Loading...
Author / Producer
Date
1998-10
Publication Type
Journal Article
ETH Bibliography
yes
Citations
Altmetric
METADATA ONLY
Data
Rights / License
Abstract
The phase equilibria of the ternary Al-AlCo-lNi system are demonstrated using isothermal sections at 1170, 1100, 1050, 900, 850, 730, and 600 degrees C. These are based on metallographic and TEM investigations and on several temperature-concentration sections, which are investigated using thermal analyses. The Scheil reaction scheme is used for explanation of the data. Eleven phases from the binaries Al-Co and Al-Ni and the three ternary phases Y-2 (Co2NiAl9), X and D were found at room temperature. The binary high-temperature phase Co4Al13(h) is stabilized in the ternary down to room temperature by Ni addition (Y-1). The phase field of D is composed of several modifications which can hardly be distinguished by light microscopy. These modifications are not considered in the present paper. 45 three-phase regions can be derived from the reaction scheme in the Al-AlCo-AlNi subsystem.
Permanent link
Publication status
published
Editor
Book title
Journal / series
Volume
89 (10)
Pages / Article No.
687 - 698
Publisher
Hanser