Dynamic Recrystallization During High-Strain-Rate Tension of Copper
Artikel i vetenskaplig tidskrift, 2016
Discontinuous dynamic recrystallization can occur during dynamic tensile extrusion of copper, which is subjected to uniaxial tensile strains of ~5 and strain rates up to 10^6 s^-1 in the extruded section. Through high-resolution transmission Kikuchi diffraction, we show that nucleation occurs through subgrain rotation and grain boundary bulging at boundaries between <001> and <111> oriented grains. The observed nuclei consist of subgrains with a size of approximately 200 to 400 nm.
Grain boundaries
Strain
Tensile strength
Discontinuous dynamic recrystallization
High resolution
Dynamic tensile extrusions
Subgrains
High strain rates
Dynamic recrystallization
Recrystallization (metallurgy)
Uniaxial tensile strain
Copper
Subgrain rotation
Författare
Nooshin Mortazavi Seyedeh
Chalmers, Fysik, Biologisk fysik
Nicola Bonora
Universita di Cassino e del Lazio Meridionale
Andrew Ruggiero
Universita di Cassino e del Lazio Meridionale
Magnus Hörnqvist Colliander
Chalmers, Fysik, Biologisk fysik
Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
1073-5623 (ISSN)
Vol. 47A 6 2555-2559Ämneskategorier (SSIF 2011)
Annan teknik
Annan materialteknik
Infrastruktur
Chalmers materialanalyslaboratorium
Styrkeområden
Materialvetenskap
DOI
10.1007/s11661-016-3491-x