[HTML][HTML] Plastic instability and texture modification in extruded Mg-Mn-Nd alloy

SK Woo, R Pei, T Al-Samman, D Letzig, S Yi - Journal of Magnesium and …, 2022 - Elsevier
Even though Mg alloys containing Mn and rare earth elements lead to higher ductility and
lower yield asymmetry due to the weak texture after extrusion, plastic instability, commonly …

[HTML][HTML] Enhanced mechanical properties of AZ91 magnesium alloy by asynchronously large-strain high-efficiency rolling with bimodal grain structure

D Wang, Y **g, Y Gao, J Li, Y Shi… - Journal of Materials …, 2023 - Elsevier
The study describes large strain high-speed asynchronous rolling process to process AZ91
magnesium alloy sheets with an overall thickness reduction of 84% via two-pass rolling at …

Microstructure evolution and mechanical properties in an ultralight Mg-2.76 Li–3Al-2.6 Zn-0.39 Y alloy

F Cao, C Sun, H Shang, C **ang, R Liu - Materials Science and …, 2021 - Elsevier
Abstract A novel Mg-2.76 Li–3Al-2.6 Zn-0.39 Y alloy was prepared by multidirectional
forging (MDF) and rolling (R) to improve strength and ductility, and its microstructural …

[HTML][HTML] Effects of Ca and Nd addition on plastic instability in extruded Mg-Mn alloy deformed under various conditions

SK Woo, R Pei, T Al-Samman, D Letzig, S Yi - Journal of Magnesium and …, 2023 - Elsevier
Abstract Plastic instability, called Portevin-Le-Chatelier (PLC) effect, manifests itself as an
unstable plastic flow during tensile tests of structural materials. This phenomenon has a …

Effect of Shear Angle on Microstructure and Mechanical Properties of AZ61 Mg Alloy During Extrusion-Shear Process

C Zeng, W Peng, T Yuan, Z Sun, Y Zhou, X **e… - Metals and Materials …, 2024 - Springer
To enhance the strength and plasticity of the AZ61 Mg alloy, a process called extrusion-
shear (ES) was proposed. The process is based on conventional extrusion with the addition …

Modeling the strongly localized deformation behavior in a magnesium alloy with complicated texture distribution

W Ren, R **n, D Liu - Materials Science and Engineering: A, 2019 - Elsevier
A crystal plasticity finite element model (CPFEM) was developed to simulate the bending
behaviors of a friction stir welded (FSW) Mg joint. The joint was divided into 12 sub-regions …

Finite element simulation of the Portevin–Le Chatelier effect in highly reinforced metal matrix composites

M Maziere, A Mortensen, S Forest - Philosophical Magazine, 2021 - Taylor & Francis
ABSTRACT The Portevin–Le Chatelier effect in an AlCu/Al 2 O 3 composite with a large
volume fraction (60%) of ceramic particles is investigated from a numerical point of view …

Crystal Orientation Dependence of the Portevin–Le Chatelier Effect in Instrumented Indentation: A Case Study in Twinning-Induced Plasticity Steels

X Peng, L Wang, W Xu, Z Liang - Metals, 2022 - mdpi.com
Instrumented indentation can be effectively used to investigate the Portevin–Le Chatelier
(PLC) effect at small scales. It has been shown that the PLC effect in single crystals may …

Nondestructive evaluation of solids based on deformation wave theory

S Yoshida, C McGibboney, T Sasaki - Applied Sciences, 2020 - mdpi.com
The application of a recent field theory of deformation and fracture to nondestructive testing
(NDT) is discussed. Based on the principle known as the symmetry of physical laws, the …

On the estimation of thermal activation parameters for Portevin–Le Chatelier effect from nanoindentation data

H Ovri, ET Lilleodden - JOM, 2019 - Springer
The development of methods to ascertain the activation enthalpy, Δ E_ a Δ E a, for Portevin–
Le Chatelier (PLC) effect is of interest as it facilitates understanding of the underlying …