This title appears in the Scientific Report :
2000
Plastic deformation of icosahedral Zn-Mg-Dy single quasicrystals
Plastic deformation of icosahedral Zn-Mg-Dy single quasicrystals
Plastic deformation experiments have been performed on Zn-Mg-Dy icosahedral single quasicrystals at temperatures between 490 and 530 degrees C and at strain rates of 10(-5) and 10(-6) s(-1). The stress-strain curves show strong yielding followed by a steady-state regime with a constant flow stress l...
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Personal Name(s): | Heggen, M. |
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Feuerbacher, M. / Schall, P. / Klein, H. / Fisher, I. R. / Canfield, P. C. / Urban, K. | |
Contributing Institute: |
Institut für Festkörperforschung; IFF |
Published in: |
Philosophical magazine |
Imprint: |
London [u.a.]
Taylor & Francis
2000
|
Physical Description: |
129 - 136 |
Document Type: |
Journal Article |
Research Program: |
Erforschung neuer Materialien |
Series Title: |
Philosophical Magazine Letters
80 |
Subject (ZB): | |
Publikationsportal JuSER |
Plastic deformation experiments have been performed on Zn-Mg-Dy icosahedral single quasicrystals at temperatures between 490 and 530 degrees C and at strain rates of 10(-5) and 10(-6) s(-1). The stress-strain curves show strong yielding followed by a steady-state regime with a constant flow stress level up to strains of about 8%. Thermodynamic activation parameters of the deformation process were determined and are discussed in comparison with those found for icosahedral Al-Pd-Mn. Microstructural investigations by transmission electron microscopy on deformed samples were performed and indicate a deformation mechanism mediated by dislocations. |