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Plasticity induced by nanoparticle dispersions in bulk metallic glasses |
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| Authors: | K Hajlaoui A LeMoulec FG Vaughan AL Greer |
| Institution: | a Euronano, LTPCM-CNRS, Institut National Polytechnique de Grenoble, 38402 Grenoble, France b European Synchrotron Radiation Facilities (ESRF), Grenoble, France c FG Physikalische Metallkunde, Technische Universitât, Darmstadt, Germany d Department of Materials Science and Metallurgy, University of Cambridge, UK |
| Abstract: | We show room temperature plasticity in several ZrCu-based bulk metallic glasses (BMG) after dispersions of crystalline nanoparticles were generated prior to mechanical testing. BMGs are heated in synchrotron light in transmission such that annealing can be interrupted at the very first detection of nucleation of the crystallites. Effect of embedded nanocrystals on the mechanical properties of BMG-Composites was investigated by compressive testing. When nanocrystal dispersions were generated, zirconium-copper-based BMGs that initially showed no plastic deformation prior to fracture, exhibited ductile behavior in compression with about 10% deformation. |
| Keywords: | 81 05 Kf 81 07 &minus b 62 25 +g 62 20 Fe |
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