9. Structural morphology of alloys
It can be seen from the above that phase diagrams can be used to determine, under equilibrium or non-equilibrium conditions, the nature of the phases present in an alloy, and to some extent the distribution of these phases. However, structural morphology (shape, size, spatial distribution of phases) can often be estimated with the aid of phase diagrams, bearing in mind the following additional remarks concerning solidification and solid-state transformations.
On solidification, the primary solid phases often take the form of branched dendrites, or have a form related to the crystalline nature of the phases (e.g. lamellar graphite, angular-grained silicon). Alloys of eutectic composition consist, in the solid state, of two solid phases in the form of extremely fine grains, interlocked in a lamellar, globular or acicular arrangement, but the eutectic may be divorced....
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
Structural morphology of alloys
General information on the diagrams shown
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
