Publication

Recrystallization characteristics of a fine grained copper alloy

2010
Journal Articles

Abstract

Recrystallization characteristics of severe cold rolled Cu-0.23 vol%Al2O3 alloy were investigated through the examination of properties and microstructure. A special change of mechanical and physical properties was observed during the annealing process, which is different from previous reports of particle-containing alloys. On the basis of metallographic, fracture observations and TEM microstructure, nature of recrystallization behavior and kinetic analysis, it was deduced that its diffusion activation energy in the nucleation process is higher than that in the growth process for the high temperature annealing. (C) 2009 Elsevier BM. All rights reserved.

Official source

https://infoscience.epfl.ch/entities/publication/474ee535-9232-4786-b29d-9ed1cdf6387d

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2010
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/474ee535-9232-4786-b29d-9ed1cdf6387d

About this result

Related concepts (32)

Annealing (materials science)

In metallurgy and materials science, annealing is a heat treatment that alters the physical and sometimes chemical properties of a material to increase its ductility and reduce its hardness, making it more workable. It involves heating a material above its recrystallization temperature, maintaining a suitable temperature for an appropriate amount of time and then cooling. In annealing, atoms migrate in the crystal lattice and the number of dislocations decreases, leading to a change in ductility and hardness.

Recrystallization (metallurgy)

In materials science, recrystallization is a process by which deformed grains are replaced by a new set of defect-free grains that nucleate and grow until the original grains have been entirely consumed. Recrystallization is usually accompanied by a reduction in the strength and hardness of a material and a simultaneous increase in the ductility. Thus, the process may be introduced as a deliberate step in metals processing or may be an undesirable byproduct of another processing step.

Nucleation

In thermodynamics, nucleation is the first step in the formation of either a new thermodynamic phase or structure via self-assembly or self-organization within a substance or mixture. Nucleation is typically defined to be the process that determines how long an observer has to wait before the new phase or self-organized structure appears. For example, if a volume of water is cooled (at atmospheric pressure) below 0 °C, it will tend to freeze into ice, but volumes of water cooled only a few degrees below 0 °C often stay completely free of ice for long periods (supercooling).

Related publications (32)

Recrystallization characteristics of a fine grained copper alloy

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