Hostname: page-component-76fb5796d-x4r87 Total loading time: 0 Render date: 2024-04-25T09:53:35.050Z Has data issue: false hasContentIssue false
  • English
  • Français

Enhancement of the Icosahedral Quasicrystalline Phase Forming Ability with Be Addition to an Al62.5Cu25.5Fe12 Alloy

Published online by Cambridge University Press:  17 March 2011

S.M. Lee ,
B.H. Kim ,
W.T. Kim  and
D.H. Kim
S.M. Lee
Affiliation:
Korea Institute of Industrial Technology, Inchon, Korea
B.H. Kim
Affiliation:
Yonsei University, Center for Noncrystalline Materials, Dept. of Metallurgical Engineering, Seoul, Korea
W.T. Kim
Affiliation:
Yonsei University, Center for Noncrystalline Materials, Dept. of Metallurgical Engineering, Seoul, Korea
D.H. Kim
Affiliation:
Yonsei University, Center for Noncrystalline Materials, Dept. of Metallurgical Engineering, Seoul, Korea
Get access

Abstract

The quasicrystalline phase forming ability, solidification structure, thermal stability, and phase relationships of a series of conventionally-cast Al62-xCu25.5Fe12.5Bex (x=0,1,3,5,7) alloys were investigated. Single icosahedral quasicrystalline phase was successfully obtained by partial replacement of Al with Be (7 at.%) in an Al62Cu25.5Fe12.5 alloy during crucible cooling. The I-phase in an Al55Cu25.5Fe12.5Be7 alloy has the same face-centered icosahedral structure as that in an Al62Cu25.5Fe12.5 alloy, with less phason strain. Hardness of the I-phase increases with x, i.e. from Hv 710 for x=1 to Hv 809 for x=7.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 643: Symposium K – Quasicrystals-Preparation, Properties, and Applications , 2000 , K2.6
Copyright
Copyright © Materials Research Society 2001

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

[1] Tsai, A.P., Inoue, A., and Masumoto, T., Jpn. J. Appl. Phys., 26, L1505 (1987).Google Scholar
[2] Tsai, A.P., Inoue, A., and Masumoto, T., Jpn. J. Appl. Phys., 30, 463 (1989).Google Scholar
[3] Dong, C., Boissieu, M.de, Dubois, J.M., Pannetier, J., and Janot, C., J. Mater. Sci. Letts., 8 (1989).Google Scholar
[4] Rosas, G. and Perez, R., Materials Lett., 36, 229 (1998).Google Scholar
[5] Lee, S.M., Lee, B.H., Kim, W.T., and Kim, D.H., accepted in J. Mater. Res. (2001).Google Scholar