Metallic glass-based chiral nanolattice: Light weight, auxeticity, and superior mechanical properties

Metallic Glass Structures for Mechanical-Energy-Dissipation Purpose: A Review

“…However, how to use the kirigami structures to develop optoelectronic devices or wearing devices is still challenging. Because of the unique properties, it is expected more functional devices using MGs will be developed in future, such as large elasticity, light weight, wearable sensors and optoelectronic devices [19,89,91].…”

“…Kirigami structures are mechanical meta-materials based on the ancient art of paper cutting, demonstrating attractive mechanical properties which do not exist in nature [86][87][88]. Inspired by the large elastic recovery of microscopic MG lattice structures, Sha et al investigated the mechanical properties of some CuZr MG-based chiral nanolattice structures using molecular dynamics (MD) simulations [89]. As shown in Figure 7, the MG-based chiral nanolattice structures have in-plane chiral kirigami patterns, and are able to demonstrate good combinations of large elasticity, large ductility and negative Poisson's ratio.…”

“…The molecular dynamics (MD) simulation results of an engineering stress-strain curve of the MG-based chiral nanolattice structures, showing a large elastic strain of about 9%, where the inset schematic diagram shows the design of the chiral lattice structure. Adapted from[89] with copyright permission from Elsevier, 2017.…”

Effect of P content on microstructure and wear properties of ZCuPb20Sn5 alloy

“…1 High Pb-tin bronze alloys, which are currently widely used in engine bearings with high-speed and heavy load, have excellent dry friction resistance, high thermal conductivity and fatigue resistance. 2,3 Currently, one of the main ways to improve the performance of tin-bronze alloys is to add alloying elements, such as rare earths, Ni, Pb, Fe, Mn, Al and P. 4,5 M. Aksoy 6 and H. Turhan 7 used the matrix alloying method to add Fe, Mn, Si, P, S and other elements to tin-bronze alloys, in which, the hard Mn 5 Si 3 and Fe 3 S dispersed phases precipitated from the matrix, improving the sintering and abrasion resistance. Qi Zhan Jun 8 studied the microstructure of high lead bronze alloy with different amounts of lead, S and rare earths, which demonstrated that the lack of S addition led to the severe lead segregation, occurring in the centrifugal casting of high lead bronze alloys.…”

Tensile behavior of Cu-coated Pd40Cu30Ni10P20 metallic glassy wire

“…However, in tension, the tensile stress enhances softening and instability, a dominant shear band slips without obstacle, and bulk and micro-sized MGs fracture elastically 3 . Various approaches have been introduced to retard the dominant shear band to improve tensile ductility of bulk and micro-sized MGs, such as designing MG matrix composites 4,5 , sharp-and-deep notches 6 , laminating MG with ductile crystalline metals 7,8 , surface mechanical treatment 9–11 , laser surface texturing treatment 12 , and MG-based chiral nanolattice 13 . In addition, size reduction approach changes room temperature plastic deformation mechanism of MG from shear banding into homogeneous plastic flow 14–18 .…”