Journal
MATERIALS LETTERS
Volume 218, Issue -, Pages 150-153Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2018.01.164
Keywords
Amorphous/crystalline laminates; Electrodeposition; Deformation and fracture; Thickness-dependent
Funding
- National Natural Science Foundation of China [51471165, 51401220]
- Joint Foundation of Liaoning Province National Science Foundation
- Shenyang National Laboratory for Materials Science [2015021020150210]
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Bulk-sized laminates with controllable thicknesses for amorphous Ni-P and crystalline Ni layers were prepared by electrodeposition. A strong dependence of mechanical properties on the thickness of Ni-P layer was revealed. The laminates with thin Ni-P layers display a desirable combination of strength and ductility, which is even better than that of crystalline Ni. In this case, shear banding in Ni-P layers is suppressed with an effective constraint of Ni layers, resulting in ductile fracture of the laminates. With increase in Ni-P layer thickness, the dominant fracture mode of the laminate transits from codeformation of all layers to shear banding in the amorphous Ni-P layers, resulting in the reduced ductility and brittle fracture. (C) 2018 Elsevier B.V. All rights reserved.
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