Glossary

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Many information can be found in aluminum-manual, which is being completely revised and will soon be available. In the meantime, please use our glossary for useful word explanations.

Abrasion

The process of wearing down surfaces by external friction forces.

 

Affinity

Driving force of chemical reactions; the tendency of ions, atoms to associate with another.

Ageing

Increase in ageing temperatures in artificial ageing lead to further reductions in the go the precipitation-hardening, positive influence on stress corrosion cracking and toughness properties.

Aluminium oxide

Chemical compound of oxygen and aluminium (Al2O3), protective layer.

Annealing

Heat treatment without visible structural changes to reduce residual stresses.

Annihilation

Cancellation of two dislocations of opposite sign – metallurgical process.

Anodized quality

Materials suitable for anodizing are subjected to appropriate metallurgical and mechanical pre-treatment to ensure reproducible properties.

Anodizing

Electrolytic passivation process used to increase the thickness of the natural oxide layer.