Some crystallographic observations of growth-twinned dendrites in aluminium

Eady J.A. and Hogan L.M. (1974) Some crystallographic observations of growth-twinned dendrites in aluminium. Journal of Crystal Growth, 23 2: 129-136. doi:10.1016/0022-0248(74)90113-4


Author Eady J.A.
Hogan L.M.
Title Some crystallographic observations of growth-twinned dendrites in aluminium
Journal name Journal of Crystal Growth   Check publisher's open access policy
ISSN 0022-0248
Publication date 1974-01-01
Sub-type Article (original research)
DOI 10.1016/0022-0248(74)90113-4
Volume 23
Issue 2
Start page 129
End page 136
Total pages 8
Subject 3104 Condensed Matter Physics
Abstract Growth-twinned dendrites in semi-continuously cast aluminium billets were studied with the object of elucidating some of their crystallographic details. It is shown that there is no unique growth direction for twinned dendrites in aluminium and that under the conditions of D.C. semi-continuous casting, twinned dendrites can occur in competition with columnar dendrites when the twin plane deviates by as much as 30° from the normal to the solid-liquid interface. The growth advantage experienced by twins in competition with normal columnar dendrites is explained in terms of a growth mechanism which depends upon twin boundary energy, solute content, freezing rate and temperature gradient.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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Created: Tue, 14 Jun 2016, 14:10:17 EST by System User