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...
Dislocation-induced breakthrough of strength and ductility trade-off in a non-equiatomic high-entropy alloy
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In conventional metallic materials, strength and ductility are mutually exclusive, referred to as strength-ductility trade-off. Here, we demonstrate an approach to improve the strength and ductility simultaneously by introducing micro-banding and the accumulation of a high density of dislocations in single-phase high-entropy alloys (HEAs). We prepa...
