[HTML][HTML] The Portevin-Le Chatelier effect in nickel-base superalloys: Origins, consequences and comparison to strain ageing in other alloy systems

BS Rowlands, C Rae, E Galindo-Nava - Progress in Materials Science, 2023 - Elsevier
Abstract Dynamic Strain Ageing (DSA) has reached widespread acceptance since its
proposal in the 1940's as the mechanism behind the Portevin-Le Chatelier effect in ferritic …

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 …

The Portevin–Le Chatelier (PLC) effect and shear band formation in an AA5754 alloy

H Halim, DS Wilkinson, M Niewczas - Acta Materialia, 2007 - Elsevier
A non-contact strain measurement technique, based on digital image correlation (DIC)
analysis, has been utilized in order to observe Portevin–Le Chatelier (PLC) band behaviour …

An analysis of the influence of the precipitate type on the mechanical behavior of Al-Cu alloys by means of micropillar compression tests

B Bellón, S Haouala, J LLorca - Acta Materialia, 2020 - Elsevier
The influence of different types of precipitates (either Guinier-Preston zones, θ ″or θ′) on
the critical resolved shear stress and strain hardening was determined by means of …

Microstructure, mechanical and thermal properties of Al/Cu/SiC laminated composites, fabricated by the ARB and CARB processes

J Luo, R Khattinejad, A Assari, M Tayyebi… - Crystals, 2023 - mdpi.com
The aim of the current work is to investigate the effect of SiC particle weight percent and
rolling passes on Al/Cu/SiC laminated composites, fabricated by accumulative roll-bonding …

Characterisation of the Portevin-Le Châtelier effect affecting an austenitic TWIP steel based on digital image correlation

K Renard, S Ryelandt, PJ Jacques - Materials Science and Engineering: A, 2010 - Elsevier
When strained in tension, high-manganese austenitic TWIP steels achieve very high
strength and elongation before necking. They also present serrated flow within a certain …

The effects of ultrasonic vibration on Portevin–Le Chatelier (PLC) effect and stress-strain behavior in aluminum alloy 2024

J Kang, X Liu, T Wang - Scripta Materialia, 2023 - Elsevier
The effect of ultrasonic vibration on the stress-strain behavior and the Portevin–Le Chatelier
(PLC) effect in aluminum alloy 2024 O temper and T4 were investigated based on …

Measurement of true stress–strain curves and evolution of plastic zone of low carbon steel under uniaxial tension using digital image correlation

F Zhu, P Bai, J Zhang, D Lei, X He - Optics and Lasers in Engineering, 2015 - Elsevier
Three-dimensional digital image correlation has been utilized widely in many fields due to
its advantages of non-contact, full-field measurement and simplicity. Based on 3D-DIC …

Effect of dynamic strain ageing on flow stress and critical strain for jerky flow in Al-Mg alloys

S Samanta, JR Sahoo, S Mishra - International Journal of Plasticity, 2024 - Elsevier
A comprehensive approach addressing the flow behavior and the critical strain for the
initiation of serrations in Al-Mg alloys is developed in the present work. The basic premise of …

Two mechanisms for the normal and inverse behaviors of the critical strain for the Portevin–Le Chatelier effect

S Fu, T Cheng, Q Zhang, Q Hu, P Cao - Acta materialia, 2012 - Elsevier
The critical strain of the Portevin–Le Chatelier (PLC) effect marks the boundary between
stable and unstable flow. In this paper, tension tests were conducted at different …