4. Phases in metal alloys
The following condensed phases may be present in a metal alloy.
-
The liquid phase
It always occupies the upper part of phase diagrams, towards high temperatures (unless, of course, the vapor phase is also represented). In the vast majority of cases, the liquid phase is unique, which means that, in the liquid state and at high temperatures, most metals are soluble in all proportions. However, in the event of strong repulsion between the metallic constituents, liquid demixing can occur in alloys, as in a vinaigrette containing an immiscible fatty and aqueous liquid.
-
Primary solid solutions
They adjoin the vertical axes of the pure bodies. These phases are isomorphic to the pure substances they border (they have the same crystalline structure)....
The Ultimate Scientific and Technical Reference
This article is included in
Studies and properties of metals
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Phases in metal alloys
Simulation of binary diagrams using the regular solution
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.
-
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
The Ultimate Scientific and Technical Reference
