Interface dominated deformation transition from inhomogeneous to apparent homogeneous mode in amorphous/amorphous nanolaminates

Chen, Z.Q.; Li, Mingcan; Li, F.C.; Guo, Shengwu; Sun, B. A.; Ke, Haibo; Wang, W.H.

doi:10.1016/j.jmst.2021.04.073

Cited by 11 publications

(9 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…But, as h decreases to 10 nm, wavy interlayer interfaces are observed ( Figure 3 f). This phenomenon of the interlayer interfaces gradually becoming wavier as the layer thickness decreases is similar to that of the reported Ni 60 Nb 40 /Zr 50.7 Cu 28 Ni 9 Al 12.3 NLGs [ 55 ].…”

Section: Resultssupporting

confidence: 89%

“…The suppressed shear banding was believed to result from the blockage of SBs because of the existence of the A/A interfaces in the nanolayered structure. Recent experiments also showed that the shear banding behavior of nanolayered amorphous alloys was highly dependent on the layer thickness (i.e., the A/A interface spacing) [ 51 , 52 , 55 ]. For instance, Chen et al [ 55 ] investigated the size effect of the nanoindentation behavior of Ni 60 Nb 40 /Zr 50.7 Cu 28 Ni 9 Al 12.3 NLGs.…”

Section: Introductionmentioning

confidence: 99%

“…Recent experiments also showed that the shear banding behavior of nanolayered amorphous alloys was highly dependent on the layer thickness (i.e., the A/A interface spacing) [ 51 , 52 , 55 ]. For instance, Chen et al [ 55 ] investigated the size effect of the nanoindentation behavior of Ni 60 Nb 40 /Zr 50.7 Cu 28 Ni 9 Al 12.3 NLGs. Their results showed that the shear banding was gradually suppressed with the decrease of h , and that the shear banding fully disappeared in the samples with h ≤ 10 nm.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Quantifying the Size-Dependent Shear Banding Behavior in High-Entropy Alloy-Based Nanolayered Glass

Dai,

Zhang,

et al. 2024

Nanomaterials

View full text Add to dashboard Cite

Extensive research has shown that nanolayered structures are capable of suppressing the shear banding in metallic glass in nanoindentation experiments. However, the specific mode and mechanism of the shear banding underneath the indenter remains unknown. Also, the quantification of shear banding-induced strain localization is still a challenge. Herein, the size-dependent shear banding behavior of a CuTiZrNb high-entropy alloy-based nanolayered glass with individual layer thicknesses (h) ranging from 5 to 80 nm was systematically investigated by nanoindentation tests. It was found that the hardness of the designed structure was almost size-independent. Yet, a clear transition in the deformation modes from the cutting-like shear bands to the kinking-like ones was discovered as h decreased to 10 nm. Moreover, multiple secondary shear bands also appeared, in addition to the primary ones, in the sample with h = 10 nm. The transition leads to an obvious strain delocalization, as clearly illustrated by the proposed theoretical model, which is based on the assumption of a pure shear stress state to quantify the shear banding-induced strain localization. The strain delocalization results from the higher density of amorphous/amorphous interfaces that exhibit the change in morphology with a refined layered glass structure.

show abstract

Section: Resultssupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Quantifying the Size-Dependent Shear Banding Behavior in High-Entropy Alloy-Based Nanolayered Glass

Dai,

Zhang,

et al. 2024

Nanomaterials

View full text Add to dashboard Cite

show abstract

“…It enables the material to respond to stress and strain by making adjustments in its local structure. 47,48 During the initial deformation stage, a significant number of amorphous structure atoms appear in the d4 layer. This indicates that the d4 layer of grains exhibits a better ability to adapt to plastic deformation.…”

Section: Nanoscale Papermentioning

confidence: 99%

Deformation mechanisms based on the multiscale molecular dynamics of a gradient TA1 titanium alloy

Jiang,

Feng,

Tao

2024

Nanoscale

View full text Add to dashboard Cite

show abstract

“…18 The nanoindentation test also showed that the magnitude of pile-up around residual indentation was indicative of work hardening in the amorphous laminated structures. 19 Chen et al 20 reported that the wavy interface in NiNb/ZrCuNiAl nanolaminate induced the homogenous plastic deformation; however, it came at the expense of hardness. In another investigation, it was unveiled that the nano-laminated structure improved the irradiation resistance through the sink effect and the decline of radiation-induced defects.…”

Section: Introductionmentioning

confidence: 99%

An investigation on plastic deformation and nanomechanical properties of Cu₆₀Zr₄₀/ Ni₈₀P₂₀ amorphous nanolaminates

Yang

Hong-wei

Salameh

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part E:

View full text Add to dashboard Cite

This paper aims to investigate the nanomechanical properties of amorphous nanolaminates by using the molecular dynamic (MD) simulation of nanoindentation process. To achieve this goal, two metallic glass (MG) nanolaminates with the arrangement of Cu60Zr40/Ni80P20 (CN type) and Ni80P20/Cu60Zr40 (NC type) were constructed. The MD outcomes unveiled that the NC-type sample exhibited a weaker strength at the loading stage and experienced a sharper relaxation at the end of holding stage. The strain maps of samples also revealed that the plastic deformation in the CN type initiated at the interface of substrate/indenter and was generated into the depth of material with a pear-like shape. On the other hand, the NC-type sample showed an accumulation of strain at the top layer normal to the direction of indenting process. This result indicated that the plasticity evolution occurred with a homogenous mode in the bulk of CN-type nanolaminate.

show abstract

Interface dominated deformation transition from inhomogeneous to apparent homogeneous mode in amorphous/amorphous nanolaminates

Cited by 11 publications

References 33 publications

Quantifying the Size-Dependent Shear Banding Behavior in High-Entropy Alloy-Based Nanolayered Glass

Quantifying the Size-Dependent Shear Banding Behavior in High-Entropy Alloy-Based Nanolayered Glass

Deformation mechanisms based on the multiscale molecular dynamics of a gradient TA1 titanium alloy

An investigation on plastic deformation and nanomechanical properties of Cu₆₀Zr₄₀/ Ni₈₀P₂₀ amorphous nanolaminates

Contact Info

Product

Resources

About

Interface dominated deformation transition from inhomogeneous to apparent homogeneous mode in amorphous/amorphous nanolaminates

Cited by 11 publications

References 33 publications

Quantifying the Size-Dependent Shear Banding Behavior in High-Entropy Alloy-Based Nanolayered Glass

Quantifying the Size-Dependent Shear Banding Behavior in High-Entropy Alloy-Based Nanolayered Glass

Deformation mechanisms based on the multiscale molecular dynamics of a gradient TA1 titanium alloy

An investigation on plastic deformation and nanomechanical properties of Cu60Zr40/ Ni80P20 amorphous nanolaminates

Contact Info

Product

Resources

About

An investigation on plastic deformation and nanomechanical properties of Cu₆₀Zr₄₀/ Ni₈₀P₂₀ amorphous nanolaminates