Crystallography of the Al-Al3 Fe eutectic

Adam C.McL. and Hogan L.M. (1975) Crystallography of the Al-Al3 Fe eutectic. Acta Metallurgica, 23 3: 345-354. doi:10.1016/0001-6160(75)90127-3


Author Adam C.McL.
Hogan L.M.
Title Crystallography of the Al-Al3 Fe eutectic
Journal name Acta Metallurgica
ISSN 0001-6160
Publication date 1975-01-01
Sub-type Article (original research)
DOI 10.1016/0001-6160(75)90127-3
Volume 23
Issue 3
Start page 345
End page 354
Total pages 10
Subject 2200 Engineering
Abstract Crystallographic characteristics and limits of stability of the Al-Al2Fe abnormal eutectic microstructure have been observed. When the G R ratio is low, Al3Fe grows as frequently branched, narrow platelets in a dendritic aluminium matrix. When G R > 1000°C sec/mm2 branching is largely eliminated and [010]Al3Fe ∥ [100]Al ∥ growth direction. The Al3Fe platelets grow in the [010] direction by a twin plane re-entrant edge mechanism in which grooves between faceting {111} planes are formed between multiple (001) twins. (001) twins were observed at 50-200 Å intervals for all freezing conditions, and (100) twins were also observed at higher values of G R.
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, 30 Aug 2016, 11:43:48 EST by System User