Plastic properties of icosahedral Al-Pd-Mn single quasicrystals

Plastic deformation propel-ties of icosahedral Al-Pd-Mn single quasicrystal s have been measured over a wide range of temperature in constant strain ra te experiments including stress relaxation tests. The properties are differ ent in the low and high-temperature ranges. At low temperatures, the deform ation is controlled by the lattice friction of the gliding dislocations and a very effective work-hardening mechanism. At high temperatures, the defor mation properties are discussed in terms of recovery-controled plastic defo rmation. (C) 2000 Elsevier Science B.V. Ail rights reserved.