2. Characteristics of plastic deformation of zinc alloys

2.1 Structure and crystallography

All wrought zinc alloys contain more than 98% zinc, and their forming behaviour is very similar.

The zinc matrix, optionally containing other elements in solid solution, has a compact hexagonal crystal structure, whose c/a ratio, equal to 1.856, is greater than the value of that of an ideal compact hexagonal structure [1] .

Finally, its density is slightly lower than that of carbon steels: 7.1 kg/dm ³ instead of 7.8 kg/dm ³ for standard steels.

Note :

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Characteristics of plastic deformation of zinc alloys

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Foundry and primary processing

Economic data

The world market for rolled products for the building industry (around 90% of total consumption) is around 300,000 t/year, with annual growth of 2%. Production and consumption vary widely from one country to another, depending above all on the traditions inherited from the previous two centuries.

Western Europe is largely dominant, but there is strong growth in consumption in new markets, notably...

Bibliography

References

(1) - PARTRIDGE (P.G.) - Crystallography and deformation modes of hexagonal closed packed metals (Cristallographie et modes de déformation des métaux hexagonaux) - . Metallurgical Review (GB), 12, n° 118, p. 169. 94 bibl. (258 réf.) (1967).
(2) -...

Standardization

Association française de normalisation AFNOR

http://www.boutique.afnor.fr/

Coverage – Metal – Shaped metal strips – Specifications - NF P 34-402 - 08 1987
Coverage – Metal – Metal joint covers – Specifications - NF P 34-403 - 08 1987
Rainwater drainage – Metal gutters, brackets and caissons – Specifications - NF P 36-402...

Organizations

France

Chambre syndicale du zinc et du cadmium (Fédération des chambres syndicales des minerais, minéraux industriels et métaux non ferreux) http://www.mineraux-et-metaux.org/fr/chambres/

Germany

Zinkberatung e.V.