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Low temperature deformation mechanisms of icosahedral AlPdMn quasicrystals.

Published online by Cambridge University Press:  01 February 2011

Michael Texier ,
Joël Bonneville ,
Anne Proult ,
Jacques Rabier  and
Ludovic Thilly
Michael Texier
Affiliation:
Université de Poitiers, LMP, UMR-CNRS 6630, SP2MI, BP 30179 F-86962 Futuroscope-Chasseneuil Cedex, FRANCE.
Joël Bonneville
Affiliation:
Université de Poitiers, LMP, UMR-CNRS 6630, SP2MI, BP 30179 F-86962 Futuroscope-Chasseneuil Cedex, FRANCE.
Anne Proult
Affiliation:
Université de Poitiers, LMP, UMR-CNRS 6630, SP2MI, BP 30179 F-86962 Futuroscope-Chasseneuil Cedex, FRANCE.
Jacques Rabier
Affiliation:
Université de Poitiers, LMP, UMR-CNRS 6630, SP2MI, BP 30179 F-86962 Futuroscope-Chasseneuil Cedex, FRANCE.
Ludovic Thilly
Affiliation:
Université de Poitiers, LMP, UMR-CNRS 6630, SP2MI, BP 30179 F-86962 Futuroscope-Chasseneuil Cedex, FRANCE.
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Abstract

Confining pressure techniques, that superimpose a shear stress on an isostatic component, allowed us to plastically deform AlPdMn specimens at temperatures below the brittle-to-ductile transition temperature obtained using conventional uniaxial deformation tests at usual strain-rates. Microstructural observations associated with these low deformation temperatures are reported. They provide new insights on the elementary deformation mechanisms that control plasticity in this non-periodic structure.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 805: Symposium LL – Quasicrystals , 2003 , LL5.3
Copyright
Copyright © Materials Research Society 2004

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References

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