8. Main causes of imbalance
8.1 Germination, supercooling, hysteresis
The solidification of an alloy takes place through the germination of solid crystals and their subsequent growth. This nucleation can never take place at the equilibrium temperature T E between liquid and solid, as the appearance of a solid nucleus in the liquid creates a liquid-solid interface with a certain surface energy. This means that supercooling must take place at a temperature below T E in order to generate sufficient driving force to compensate for the creation of this energy. Indeed, this driving force increases as the supercooling ΔT (ΔT = T E – T ) increases.
In addition...
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Main causes of imbalance
Structural morphology of alloys
Diagram classification
In this folder, the diagrams are arranged in alphabetical order of the symbol of the element concerned, which comes first in alphabetical order among the elements making up the alloy; then, for a given element, in alphabetical order of the symbol of the second element.
Example
we find Fe-C to C-Fe.
...
Binary alloys containing Ag
Binary alloys containing Al
Binary alloys containing As
As-Cu (arsenic-copper – figure )
This diagram has recently been completely revised. The relationships between phases and their compositions are now well known; there are apparently no other intermediate phases richer in arsenic than those shown in the diagram.
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Phase structures
(Cu) : c. f. c....
Au-containing binary alloys
Binary alloys containing either B, Be or Bi
Binary alloys containing C
Binary alloys containing either Ca, Cd or Ce
Binary alloys containing Co
Binary alloys containing Cr
Binary alloys containing Cu
Binary alloys containing Fe
Binary alloys containing Li, Mg or Mn
Binary alloys containing either Mo, or N, or Nb, or Ni, or O
Binary alloys containing either Pb, Sb, Sn or Ti
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