The role of heterogeneity on the flow and fracture of two-phase materials

International audienceno abstrac

Ductilization of a powder metallurgy Al-17 Wt Pct Cu by means of channel-die compression and extrusion

International audienceno abstrac

Perspectives for Cu/SS macrocomposite and Cu/X nanofilamentary conductors used in non-destructive high-field pulsed magnets under cryogenic conditions

The latest activities concerning the research, development and applications of macrocomposite and nanocomposite reinforced conductors, able to resist both the heating and electrodynamic forces generated by the high transitory current in pulsed high-field magnets are discussed. (C) 2004 Elsevier B.V. All rights reserved

Role of damage on the flow and fracture of particulate reinforced alloys and metal matrix composites

International audienceno abstrac

The Effect of Cellular Architecture on the Ductility and Strength of Metal Foams

A multiscale finite element model has been developed to study the fracture behaviour of two-dimensional random Voronoi structures. The influence of materials parameters and cellular architecture on the damage initiation and accumulation has been analyzed. The effect of the solid material's strain hardening, relative density and architectural randomness on the ductility and fracture strength of the cellular solid are investigated. The results suggest materials-design directions in which the heat treatment, the solid material properties, its microstructure and the cellular architecture can be tuned for an optimized performance of cellular materials

Effect of chemical composition on work hardening of Fe-Mn-C TWIP steels

The work hardening behaviour of Fe-Mn-C twinning induced plasticity (TWIP) steels with a wide compositional range has been investigated. Based on the consideration that twinning provides a dynamic composite effect resulting in high work hardening rate in TWIP steels, the present work proposes a model to describe such behaviour as a function of chemical composition. The model predictions are in good agreement with experimental observations. © 2011.link_to_subscribed_fulltex