Effect of Fluid Flow on Solidification Structure.
Abstract
It is shown that the simple constitutional supercooling theory derived for a binary alloy can be applied to a ternary alloy when certain conditions are met. The conditions required to unidirectionally solidify a composite three-component crystal with a planar interface are a steep temperature gradient in the liquid at the interface and a low growth rate; when the ratio of these two variables is sufficiently high, a three-phase crystal with a eutecticlike structure has been grown, even when the initial composition of the alloy was far from the eutectic composition. Alloys studied were of the Al-Cu-Ni system of different compositions on the line of two-fold saturation joining the ternary eutectic and the binary Al-NiAl3, and within the ternary tie-triangle. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1971
- Accession Number
- AD0734010
Entities
People
- F. Schlecht
- M. Rinaldi
- Merton C. Flemings
Organizations
- Massachusetts Institute of Technology