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Crystallographic features of the primary Al 3 Fe phase in as‐cast Al–3.31wt% Fe alloy
Author(s) -
Li Lei,
Zhang Yudong,
Esling Claude,
Jiang Huixue,
Zhao Zhihao,
Zuo Yubo,
Cui Jianzhong
Publication year - 2010
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889810029493
Subject(s) - crystal twinning , alloy , crystallography , phase (matter) , materials science , primary (astronomy) , extension (predicate logic) , macle , metallurgy , chemistry , microstructure , physics , organic chemistry , astronomy , computer science , programming language
The preferred crystallographic extension directions of the primary Al 3 Fe phase formed during the solidification of the Al–3.31wt% Fe alloy have been confirmed as 〈010〉 or 〈011〉. Two sorts of twins related to the extension directions were found and their complete twinning elements determined. The morphologies of the primary Al 3 Fe phase related to the crystallographic extension directions and twinning modes are analysed. The crystallographic surface planes binding the primary phase in the extension directions are identified. The formation of the twins is attributed to these surface planes.