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Metallic-glass-matrix composite structures with benchmark mechanical performance
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Image of FIG. 1.
FIG. 1.

The semisolid-forging setup used to fabricate egg-boxes. (a) and (b) Lower die tool shown before and after forging of a DH1 egg-box panel (c) and (d) Comparison of a DH1 egg-box panel of 0.12 relative density (c) against a cardboard egg-box carton (d). (e) Geometry of a DH1 egg-box cell (f) Scanning electron micrographs revealing the underlying microstructure of an as-forged DH1 egg-box cell section.

Image of FIG. 2.
FIG. 2.

(a) Quasi-static compressive loading response of a DH1 egg-box panel of 0.09 relative density. Inset: logarithm of the stress strain response of 0.09 relative density DH1 and Al 1050 H111 egg-box panels along with images of the DH1 panel before and after collapse. (b) and (c) Scanning electron micrographs of a collapsed DH1.

Image of FIG. 3.
FIG. 3.

Estimated specific mechanical energy absorbed (in J/g) by DH1 panels plotted against the corresponding relative density. Data for various other architectures made of conventional metallic alloys and other engineering materials are also plotted.


Generic image for table
Table I.

Properties of various alloys. (Density , Young’s modulus , yield strength , fracture toughness , inverse of elastic strain limit , plastic zone size , and specific strength .


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Metallic-glass-matrix composite structures with benchmark mechanical performance