Multiscale Modeling and Simulation of Deformation in Nanoscale Metallic Multilayered Composites
Nanoscale metallic multilayered (NMM) composites represent an important class of advanced engineering materials which have a great promise for high performance that can be tailored for different applications. Traditionally, NMM composites are made of bimetallic systems produced by vapor or electrodeposition. Careful experiments by several groups have clearly demonstrated that such materials exhibit a combination of several superior mechanical properties: ultrahigh strength reaching 1/3 to 1/2 of the theoretical strength of any of the constituent materials , high ductility , morphological stability under high temperatures and after large deformation , enhanced fatigue resistance of an order of magnitude higher than the values typically reported for the bulk form , and improved irradiation damage resistance [17, 27], again, as compared to the bulk. However, the basic understanding of the behavior of those materials is not yet at a level that allows them to be harnessed and designed for engineering applications.
KeywordsStress Field Slip System Burger Vector Slip Plane Representative Volume Element
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