Networking amorphous phase reinforced titanium composites which show tensile plasticity |
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| Authors: | F.Q. Guo S.J. Poon G.J. Shiflet |
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| Affiliation: | 1. Department of Physics , University of Virginia , Charlottesville, VA, USA;2. Department of Materials Science and Engineering , University of Virginia , Charlottesville, VA, USA fg7b@virginia.edu;4. Department of Physics , University of Virginia , Charlottesville, VA, USA;5. Department of Materials Science and Engineering , University of Virginia , Charlottesville, VA, USA |
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| Abstract: | Titanium matrix composites reinforced by an in situ formed networking amorphous phase have been prepared directly in the form of as-cast ingots. The composites show significant compressive and tensile plasticity. In contrast to the highly localized plasticity for most monolithic amorphous alloys, the tensile deformation of the current composites distributes uniformly over the entire specimen as a consequence of substantial work (strain) hardening. The formation mechanism of the networking structure, as a result of well-separated two-step solidification of the current alloy melts, have possible implications for composite synthesis in other alloy systems. |
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| Keywords: | Ti alloys metallic glass mechanical test tensile plasticity |
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