Paper Title:
Characterization of Fe-Rich Intermetallic Phases in a 6xxx Series Al Alloy
  Abstract

Intermetallic phases formed during directional Bridgman solidification of a 6xxx series Al alloy in the growth velocity range 5-120 mm/min have been characterised using conventional and high-resolution transmission electron microscopy. Cubic αc-AlFeSi and β-AlFeSi were always present in the alloy, but Al13Fe4 was only observed at 5mm/min and monoclinic αT-AlFeSi at 80 mm/min. Cubic αc-AlFeSi was observed to have a variety of morphologies resulting from flexibility in its growth mechanisms. β-AlFeSi with twins and faults showed strongly anisotropic growth by steps, resulting in its platelet morphology. Occasionally blocky β-AlFeSi particles were observed particularly at 30-60 mm/min, suggesting that other mechanisms could influence their morphology. Two types of composite particles, β-AlFeSi/Al13Fe4 and β-AlFeSi/cubic αc-AlFeSi, were observed in this alloy, and likely formed by two quasi-peritectic reactions.

  Info
Periodical
Materials Science Forum (Volumes 519-521)
Edited by
W.J. Poole, M.A. Wells and D.J. Lloyd
Pages
1721-1726
DOI
10.4028/www.scientific.net/MSF.519-521.1721
Citation
G. Sha, K. O'Reilly, B. Cantor, "Characterization of Fe-Rich Intermetallic Phases in a 6xxx Series Al Alloy", Materials Science Forum, Vols. 519-521, pp. 1721-1726, 2006
Online since
July 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: M. Yusop, De Liang Zhang, M. Wilson
Abstract:Alumina-iron nanocomposite powders containing 5vol.% of iron were fabricated by high-energy ball milling with different ball-to-powder...
131
Authors: O.N. Senkov
Abstract:Semi-amorphous aluminum alloy powders produced by gas atomization were compacted using equal channel angular extrusion (ECAE) in the...
155
Authors: R. Khorshidi, M. Emamy, A. Honarbakhsh Raouf
Abstract:The present research is undertaken to study the influence of Li on the tensile properties of Al-15%Mg2Si metal matrix composite. The tensile...
1052
Authors: Zhen Yuan Li, Hao Ran Geng, Hai Ou Qin
Abstract:The Al-7%Si /9% Al63Cu25Fe12 composites were fabricated by mechanical stirring method. The composite took...
1022
Authors: Dong Chen, Zhe Chen, Peng Zhang, Yi Jie Zhang, Haiheng Ma, Hao Wei Wang
Chapter 5: Metal Alloy Materials
Abstract:In-situ TiB2 particles reinforced AA7055 composites were fabricated through mixed-salts route and their bending properties were...
1005