Constituent constraining effects on the microstructural evolution, ductility, and fracture mode of crystalline/amorphous nanolaminates

Mechanical behavior of nanocomposites

“…Interfaces that favor slip transmission in disparate phases Plastic co-deformability in high-strength metal-intermetallic 36 and metal-metallic glass systems [9][10][11] interfaces in Cu-Nb and related systems exhibit unusual behavior (e.g., very high cohesive strength but relatively low shear strength in the interface plane), which leads to localized shear in response to impinging glide dislocations and trapping of dislocations in the interface plane with delocalized (spread) core 5 (Figure 1a-b). This also results in a very high interface barrier to slip transmission that can be tailored via design of the interface atomic structure to influence the interface shear strength.…”

Short-Range Order Enhances Strength and Tensile Ductility in Nanocrystalline Silver with Intercalation of Amorphous Nickel Nanolayers

“…All evidence proves that prolonging the tensile ductility under plastic deformation requires materials to exhibit more strain hardening. However, strain-hardening was absent in nanolayered crystalline-amorphous Cu-Zr lms 24,25,29 , because incorporating non-crystalline layers to crystalline lms gave rise to a transition from hardening to softening behavior 25 and brittle cracking 29 .…”

Layer thickness dependent plastic deformation mechanism in Ti/TiCu dual-phase nano-laminates

“…Zhang and his coworkers performed a lot of work to investigate the mechanical properties of crystalline/amorphous nanolaminates. [19][20][21][22][23][24] They pointed out that the mechanical properties of Cu/Cu-Zr crystalline/amorphous are dependent on the diameter of the sample, the modulation ratio η and the layer thickness. [19,22] In crystalline/amorphous Cu/Ta nanolaminates, the hardness increases monotonically with decreasing of η, however, there is an unexpected hardening to softening when the η changes.…”

“…[24] The Ag/Cu-Zr nanolaminates show that the tensile ductility firstly decreases and subsequently increases with raising η. [20] However, the Mo/Cu-Zr nanolaminates exhibit a different η-dependence where the tensile ductility monotonically increases with η. [20] The results mentioned above indicate that the mechanical properties and deformation mechanism of the nanolaminates are dependent on the layer thickness.…”

“…[20] However, the Mo/Cu-Zr nanolaminates exhibit a different η-dependence where the tensile ductility monotonically increases with η. [20] The results mentioned above indicate that the mechanical properties and deformation mechanism of the nanolaminates are dependent on the layer thickness. However, the relation of the layer thickness to the strengthening and toughening mechanism is still under the way of exploring.…”