MORPHOLOGICAL VARIATIONS PRODUCED BY CELLULAR-AUTOMATON MODEL OF NONISOTHERMAL FREE DENDRITIC GROWTH

Authors
BROWN SGR CLARKE GP BROOKS AJ
Citation
Sgr. Brown et al., MORPHOLOGICAL VARIATIONS PRODUCED BY CELLULAR-AUTOMATON MODEL OF NONISOTHERMAL FREE DENDRITIC GROWTH, Materials science and technology, 11(4), 1995, pp. 370-374
Citations number
29
Categorie Soggetti
Metallurgy & Metallurigical Engineering","Material Science
Journal title
Materials science and technology → ACNP
ISSN journal
02670836
Volume
11
Issue
4
Year of publication
1995
Pages
370 - 374
Database
ISI
SICI code
0267-0836(1995)11:4<370:MVPBCM>2.0.ZU;2-7
Abstract
A cellular automaton model of 'free' dendritic growth has been used to produce a variety of simulated dendrite morphologies. Different prima ry and secondary dendrite arm spacings were produced by altering two k ey parameters in the model; the initial supercooling in the liquid and gamma, which represents the solid-liquid interfacial energy in the mo del. An attempt to quantify the morphological variations has been made using computed hydraulic radii. For comparison hydraulic radii and se condary dendrite arm spacings are included as measured from an alumini um alloy casting.