The fundamental difference between the phase and the organization is that the phase is composed separately and is a monomer; the organization is combined and is a composite composed of monomers.

I. Phase: a uniform component of an alloy having the same state of aggregation, the same crystalline structure and properties and separated from each other by an interface;

1. All the substances in the phase diagram of ferric carburite are composed of carburite and ferrite, and these two are phases.

2, in a metal or alloy, where the chemical composition is the same, the crystal structure is the same and there is an interface with the other parts of the separation of the homogeneous components is called phase. Liquid substances are liquid phase, solid substances are solid phase.

3, solid alloys have two types of basic phase: solid solution and metal compounds.

Two, the organization: refers to the alloy has a number of phases in a certain number, shape, size combination and has a unique form of the part.

1, a small piece of metal material with metallographic sandpaper grinding after polishing,? Then eroded with erosion agent,? That is to obtain a piece of metallographic samples. Observed under the metallographic microscope, you can see the internal microscopic morphology of the metal material. This microstructure is called microstructure (referred to as organization).

2, due to the crystallization of different ways, the two of them, the relative number of morphology will be different, resulting in a different macroscopic morphology, that is, constitutes a different organization. Such as pearlite and leucite, they are essentially composed of two phases, but the proportion is different, of course, different morphology, they are different organizations.

3, the organization by the number, form, size and distribution of various phases of different ways.

4, the organization of metallic materials can be composed of a single phase, can also be composed of multi-phase.?

Three, for example, iron-carbon alloys:

The phases in the phase diagram of iron-carbon alloys are: ferrite, austenite, carburite three...?

Iron-carbon alloys phase diagram in the organization have: ferrite, austenite, carburite, pearlite, leucite, soxhlet, tosite, bainite, martensite, tempered martensite, wei's organization.

Expanded Information:

Difference between phases and organizations in metallurgy and its heat treatment:

Phases in metals are substances with similar compositions and the same structure, which can be divided into solid solution and intermetallic compounds of two types.

such as steel austenite phase is carbon in the face-centered cubic iron formation of interstitial solid solution, ferrite is body-centered cubic, from high temperature to low temperature austenite phase to ferrite transformation is phase change.

Organization, on the other hand, can be understood as a combination of forms. For example, *** crystal organization, is *** crystal transformation is the simultaneous precipitation of the two combined with the formation of a morphology; there are, for example, cold deformation of the metal grain is compressed, elongation, the formation of fibrous tissue, in fact, it is a morphology, the response is only to eliminate a certain amount of work hardening (reduce dislocation density), the morphology did not change, only after recrystallization into an equiaxial crystal, that is, the transition to an equiaxial crystalline organization. The organization can be composed of multiple phases, but can not say that there is a phase constituting the organization, there is no subordinate relationship between them.