On the strength-ductility modifications in pure copper after severe plastic deformation
International audience
On the strength-ductility modifications in pure copper after severe plastic deformation
The aim of this work is to investigate experimentally and numerically the modifications of both strength and ductility after processing by severe plastic deformation, using several passes of repetitive corrugation and straightening on sheets made of pure copper. Experimental stress–strain curves are determined before and after processing in order t...
Analýza vlivu procesu extrémní plastické deformace na mechanické vlastnosti oceli na prototypovém tvářecím zařízení / An...
Cílem této diplomové práci bylo provést extrémní plastickou deformaci metodou DRECE na dvou zařízeních, které se liší ve své konstrukci. Práce je rozdělena na dvě části, teoretickou a praktickou část. Teoretická část se zabývá vícenásobnou plastickou deformací a jejich metodami, dále také analýzou chemického složení oceli, zkouškou tahem a optickou...
Combined severe plastic deformation processing of commercial purity titanium enables superior fatigue resistance for nex...
Commercial purity titanium (cp-Ti) is considered for replacing Ti64 as an implant material in various applications, due to the potential toxicity associated with the release of Al and V ions. However, the mechanical properties of cp-Ti, particularly fatigue resistance, are inadequate for this purpose. In this study, cp-Ti grade 4 rods were processe...
Severe Plastic Deformation by Fast Forging to Easy Produce Hydride from Bulk Mg-Based Alloys
The study of metal forging over long period of time has made it possible to establish the major basic principles up to the most recent, those of Severe Plastic Deformation (SPD). Thus the fundamental characteristics resulting from the stresses and deformations applied have led to the definition and modelling of microstructural variations in grain s...
Potency of Severe Plastic Deformation Processes for Optimizing Combinations of Strength and Electrical Conductivity of L...
This paper presents an overview of fundamentals and potential applications of ultrafine-grained Al-based conductors developed with the help of severe plastic deformation (SPD) techniques. Based on deliberate formation of nanoscale features (such as nanoprecipitates, segregation of solutes along crystallographic defects and so on) within ultrafine g...
Experimental evidence of zonal dislocations in the Ti2AlC MAX phase
The dislocation configurations of a Ti2AlC-MAX phase deformed under severe plastic deformation by surface mechanical attrition treatment have been analyzed by transmission electron microscopy. Results show that the microstructure of the deformed Ti2AlC sample is composed of numerous 〈a〉-dislocations, which interact with each other notably with dipo...
Nano-structuring of a high entropy alloy by severe plastic deformation: experiments and crystal plasticity simulations
The evolution of microstructure, texture, and mechanical properties of an induction melted nonequiatomic Al6CoFeMnNi (at.%) high entropy alloy subjected to severe plastic deformation was investigated experimentally and by simulations. Analyses using electron backscatter diffraction and transmission Kikuchi diffraction images revealed the evolution ...
Contribution expérimentale au frottement sec dans les procédés d’hyperdéformation : application au couple cuivre/acier
La compréhension de propriétés tribologiques dans les procédés de mise en forme est un enjeu important, particulièrement dans les procédés d'hyperdéformation. Dans ces procédés, les matériaux sont soumis à des déformations plastiques sévères sous de faibles vitesses d'avance dans le but d'obtenir des matériaux à grains ultrafins. Certains de ces pr...
Deformation behavior of single-crystal magnesium during Nano-ECAP simulation
Published in Heliyon
Magnesium; ECAP; Twinning; Molecular dynamics; Severe plastic deformation.
