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
Finally, its density is slightly lower than that of carbon steels: 7.1 kg/dm3 instead of 7.8 kg/dm3 for standard steels.
For further information on metals with a compact hexagonal lattice, please refer to
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Characteristics of plastic deformation of zinc alloys
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 Eastern Europe, North America...
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