Paper Title:
Microstructural Characterization of Al-Cu-Fe Alloys in the Quasicrystalline Composition Range
  Abstract

The microstructural changes of six Al-Cu-Fe alloys; A)Al62Cu25.5Fe12.5, B) Al65Cu20Fe15, C)Al68Cu20Fe12, D)Al61Cu26Fe13, E) Al65Cu22.5Fe12.5, F)Al64Cu25.5Fe13.5, where the icosahedral phase is present, have been experimentally studied in both as-cast and annealed conditions by X-ray diffractometry, optical metallography, scanning electron microscopy and hardness tests. The resulting microstructures were characterized to investigate the effect of chemical composition on percentage of icosahedral phase and the changes in hardness obtained in this composition range. It was found that the B) Al65Cu20Fe15 alloy showed the microstructure with major amount of icosahedral phase in as-cast condition with a value of 50 area%, while the A) alloy showed the highest amount of icosahedral phase. The hardness of phases after heat treatment increased with respect to alloys in as-cast condition, the hardness of y-Al65Cu20Fe15 phase increased between 20-25%, while the l-Al13Fe4 phase increased 9%.

  Info
Periodical
Edited by
J. Federico Chávez Alcalá, Alejandro Cruz Ramírez and Ma. de los Ángeles Hernández Pérez
Pages
15-22
DOI
10.4028/www.scientific.net/MSF.691.15
Citation
R. Esquivel, M. A. Suárez, J.A. Alcántara, J. F. Chávez, "Microstructural Characterization of Al-Cu-Fe Alloys in the Quasicrystalline Composition Range", Materials Science Forum, Vol. 691, pp. 15-22, 2011
Online since
June 2011
Export
Price
$35.00
Share

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

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

Authors: L.A. Bereta, Claudio Shyinti Kiminami, Walter José Botta, Claudemiro Bolfarini
659
Authors: Dalibor Vojtěch, Jan Verner, Barbora Bártová, Karel Saksl
Abstract:Rapidly solidified (RS) Al-TM (TM = transition metal) alloys are perspective materials from scientific, as well as technological point of...
389
Authors: Marzena Lech-Grega, Sonia Boczkal
Abstract:Iron phases present in alloys from the 6xxx series affect the workability behaviour of these alloys. Iron in these alloys occurs in the form...
135
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: C. Patiño-Carachure, J. Luis López-Miranda, F. de la Rosa, M. Abatal, R. Pérez, G. Rosas
Abstract:In this investigation the Al64Cu24Fe12 alloy was melted in an induction furnace and solidified under normal...
23