Columnar to Equiaxed Transition in Al-Cu-Ag

Els Nagels; Ludo Froyen

doi:10.4028/www.scientific.net/MSF.649.379

Paper Titles

Macroscopic Model for Predicting Columnar to Equiaxed Transitions Using Columnar Front Tracking and Average Equiaxed Growth
p.355

Analysis of a Microgravity Solidification Experiment for Columnar to Equiaxed Transitions with Modeling Results
p.361

Numerical and Experimental Investigation of NH₄Cl Solidification
p.367

A Sensitivity Study of Grain Growth Model For Prediction of ECT and CET Transformations in Continuous Casting of Steel
p.373

Columnar to Equiaxed Transition in Al-Cu-Ag
p.379

Role of Oxide Particles in Aluminum Melt toward Aluminum Foam Fabrication by the Melt Route
p.385

Foam Evolution and Stability at Elevated Gravity Levels
p.391

Permeability in the Mushy Zone
p.399

Flow Effects on Mush Coarsening
p.409

HomeMaterials Science ForumMaterials Science Forum Vol. 649Columnar to Equiaxed Transition in Al-Cu-Ag

Columnar to Equiaxed Transition in Al-Cu-Ag

Abstract:

In this work the transition from columnar to equiaxed growth is studied during the solidification of the univariant eutectic L=> α(Al) + θ-Al2Cu in the ternary Al-Cu-Ag system. The columnar to equiaxed transition (CET) in a ternary system behaves very similar to the CET observed in binary systems [1]. It is observed that the CET occurs at lower temperature gradients when the amount of the third alloying element, in this case Ag, is increased. Another important solidification parameter is the cooling rate of the furnace. When the cooling rate is increased, the CET will occur at lower positions in the sample where the temperature gradient is lower.

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Periodical:

Materials Science Forum (Volume 649)

Pages:

379-384

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.649.379

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Online since:

May 2010

Authors:

Els Nagels, Ludo Froyen

Keywords:

Al-Cu-Ag, Columnar Equiaxed Transition (CET), Ternary Eutectic System, Univariant Eutectic Solidification

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