Shear band stability and uniform elongation of gradient structured material: Role of lateral constraint

Y Wang, C Huang, Z Li, X Fang, M Wang, Q He… - Extreme Mechanics …, 2020 - Elsevier
Here we report a shear bands-dominated deformation principle for the gradient material
composed of two nanostructured gradient layers (NGLs) and a coarse-grained (CG) interior …

Strain hardening and ductility in a coarse-grain/nanostructure laminate material

XL Ma, CX Huang, WZ Xu, H Zhou, XL Wu, YT Zhu - Scripta Materialia, 2015 - Elsevier
A laminate structure with a nanostructured Cu–10Zn layer sandwiched between two coarse-
grained Cu layers was produced by high-pressure torsion, rolling and annealing. Sharp …

Gradient structure produces superior dynamic shear properties

X Bian, F Yuan, Y Zhu, X Wu - Materials Research Letters, 2017 - Taylor & Francis
We report that gradient-structured twinning-induced plasticity steels have much superior
dynamic shear properties over homogeneous nanostructured (NS) counterparts. The …

Optimizing mechanical properties of gradient-structured low-carbon steel by manipulating grain size distribution

L Wang, B Li, Y Shi, G Huang, W Song, S Li - Materials Science and …, 2019 - Elsevier
In this paper, various gradient structures (ie, the ferrite grain size increases continuously with
the depth) with different grain size distributions are produced in low-carbon steel by using …

Gradient twinned 304 stainless steels for high strength and high ductility

A Chen, J Liu, H Wang, J Lu, YM Wang - Materials Science and …, 2016 - Elsevier
Gradient materials often have attractive mechanical properties that outperform uniform
microstructure counterparts. It remains a difficult task to investigate and compare the …

Dispersed strain bands promote the ductility of gradient nano-grained material: a strain gradient constitutive modeling considering damage effect

J Zhao, B Liu, Y Wang, Y Liang, J Li, X Zhang - Mechanics of Materials, 2023 - Elsevier
Gradient nano-grained (GNG) metals have achieved superior strength-ductility synergy than
their homogeneous counterparts. The high strength is usually attributed to the grain size …

Three-dimensionally gradient harmonic structure design: an integrated approach for high performance structural materials

SK Vajpai, M Ota, Z Zhang… - Materials Research …, 2016 - Taylor & Francis
This paper presents an overview on the peculiar microstructural design, called 'harmonic
structure'(HS), for improved mechanical performance of structural materials. A well designed …

Gradient and lamellar heterostructures for superior mechanical properties

X Wu, Y Zhu - MRS Bulletin, 2021 - Springer
Heterostructured (HS) materials are a novel class of materials with mechanical properties
that are superior over their conventional homogeneous counterparts. They are composed of …

[HTML][HTML] Improving the strength and retaining the ductility of microstructural graded coarse-grained materials with low stacking fault energy

J Gu, L Zhang, Y Tang, M Song, S Ni, X An, Y Du, Z Li… - Materials & Design, 2018 - Elsevier
Gradient structures were introduced via torsional treatment to Cu and Cusingle bondAl
alloys with different starting grain sizes and stacking fault energies (SFEs). Systematic …

Improvement of strength and ductility in a gradient structured Ni fabricated by severe torsion deformation

L Yang, Z Chen, X Ma, D Zhong, X Zhao, L Xiao… - Materials Science and …, 2021 - Elsevier
The tensile deformation behavior and microstructure evolution of gradient structured (GS) Ni
processed by severe torsion deformation (STD) were systematically investigated. The results …