The Portevin–Le Chatelier effect: a review of experimental findings

A Yilmaz - Science and technology of advanced materials, 2011 - iopscience.iop.org
Abstract The Portevin–Le Chatelier (PLC) effect manifests itself as an unstable plastic flow
during tensile tests of some dilute alloys under certain regimes of strain rate and …

A review of the serrated-flow phenomenon and its role in the deformation behavior of high-entropy alloys

J Brechtl, S Chen, C Lee, Y Shi, R Feng, X Xie… - Metals, 2020 - mdpi.com
High-entropy alloys (HEAs) are a novel class of alloys that have many desirable properties.
The serrated flow that occurs in high-entropy alloys during mechanical deformation is an …

Towards a greater understanding of serrated flows in an Al-containing high-entropy-based alloy

J Brechtl, SY Chen, X Xie, Y Ren, JW Qiao… - International Journal of …, 2019 - Elsevier
A serrated flow, which occurs in a material undergoing mechanical deformation, is a
complex process of great engineering significance. Here statistical, dynamical, and …

Effects of Cu and Zn on microstructures and mechanical behavior of the medium-entropy aluminum alloy

B Zhang, PK Liaw, J Brechtl, J Ren, X Guo… - Journal of Alloys and …, 2020 - Elsevier
Lightweight alloys are becoming more and more important. Based on the 5083 aluminum
alloy, the effects of Zn and Cu additions on the microstructures, properties, and serration …

Unraveling the discontinuous plastic flow of a Co-Cr-Fe-Ni-Mo multiprincipal-element alloy at deep cryogenic temperatures

J Moon, E Tabachnikova, S Shumilin, T Hryhorova… - Physical Review …, 2021 - APS
We report an analysis of the discontinuous plastic flow of a multiprincipal-element alloy, Co
17.5 Cr 12.5 Fe 55 Ni 10 Mo 5 (atomic percent, at.%), in the temperature range of 0.5–4.2 K …

Distinct avalanche dynamics detected in metallic glasses with high energy state revealing the crack-like shear banding mechanism

K Tao, F Li, Y Liu, E Pineda, K Song, J Qiao - International Journal of …, 2024 - Elsevier
When a sufficiently high stress is applied to a metallic glass, causing plastic deformation, the
material undergoes structural reconfiguration through dissipative slip avalanche events that …

Complexity analysis of serrated flows in a bulk metallic glass under constrained and unconstrained conditions

J Brechtl, X Xie, Z Wang, J Qiao, PK Liaw - Materials Science and …, 2020 - Elsevier
For the present work, the Zr 55 Cu 30 Ni 5 Al 10 (atomic percent) bulk metallic glass
underwent room-temperature compression experiments in both the constrained and …

Serrated flow in NaI: Tl scintillator crystals

J Brechtl, X Xie, R Feng, G Wang, C Melcher… - Journal of Materials …, 2023 - Elsevier
The serrated-flow behavior is an important phenomenon that unveils material-deformation
mechanisms, as reported for various kinds of materials. NaI doped with Tl (NaI: Tl) is unique …

Entropy modeling on serrated flows in carburized steels

J Brechtl, B Chen, X Xie, Y Ren, JD Venable… - Materials Science and …, 2019 - Elsevier
Samples comprised of carburized steel alloys, 4615, 4720, and 10B22, were tension tested
at room temperature and at a strain rate of 2× 10− 4 s− 1. The serrated-flow behavior was …

Characterization of localized plastic deformation behaviors associated with dynamic strain aging in pipeline steels using digital image correlation

TR Jacobs, DK Matlock, KO Findley - International Journal of Plasticity, 2019 - Elsevier
Localized deformation behavior in X52 and X70 pipeline steels during dynamic strain aging
(or DSA, caused by interstitial atom-dislocation interactions during plastic deformation) were …