Crystallographic features of the primary Al3Fe phase in as-cast Al–3.31wt% Fe alloy

2010/09/09 by Lei Li, Yudong Zhang, Claude Esling +4
Chemistry · Engineering · Materials Science · #Alloy #Aluminum Alloy Microstructure Properties #Aluminum Alloys Composites Properties #Chemistry #Crystal twinning #Crystallography #Extension (predicate logic) #Macle #Materials science #Metallurgy #Microstructure #Phase (matter) #Physics #Primary (astronomy) #Quasicrystal Structures and Properties

paper · doi:10.1107/s0021889810029493

openalex publication_date 2010/09/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/25

Abstract

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.

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