- eutectoid structure
- • структура f эвтектоидная
Metallurgy dictionary. 2015.
eutectoid structure
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Lamellar structure — Lamellar structures or microstructures are composed of fine, alternating layers of different materials in the form of lamellae. They are often observed in cases where a phase transformation front moves quickly, leaving behind two solid products,… … Wikipedia
hypo-eutectoid steel — a steel that contains less than 0.83% carbon and which in annealed condition has a structure of ferrite and pearlite … Mechanics glossary
Carbon steel — Iron alloy phases Ferrite (α iron, δ iron) Austenite (γ iron) Pearlite (88% ferrite, 12% cementite) … Wikipedia
Eutectic point — The melting point of a mixture of two or more solids (such as an alloy) depends on the relative proportions of its ingredients. A eutectic or eutectic mixture is a mixture at such proportions that the melting point is as low as possible, and that … Wikipedia
Austenite — (or gamma phase iron) is a metallic non magnetic solid solution of iron and an alloying element. In plain carbon steel, austenite exists above the critical eutectoid temperature of 1000 K (about 727 °C); other alloys of steel have different… … Wikipedia
Pearlite — is a two phased, lamellar (or layered) structure composed of alternating layers of alpha ferrite (88 wt%) and cementite (12%) that occurs in some steels and cast irons. It forms by a eutectoid reaction as austenite is slowly cooled below 727°C.… … Wikipedia
Ferrite (iron) — Ferrite or alpha iron (α Fe) is a materials science term for iron, or a solid solution with iron as the main constituent, with a body centred cubic crystal structure. It is the component which gives steel and cast iron their magnetic properties,… … Wikipedia
Alloy steel — is steel alloyed with other elements in amounts of between 1 and 50% by weight to improve its mechanical properties. Alloy steels are broken down into two groups: low alloy steels and high alloy steels. Low alloy steels are defined as having an… … Wikipedia
Steel — For other uses, see Steel (disambiguation). The steel cable of a colliery winding tower … Wikipedia
Martensite — For the transformation, see Diffusionless transformations. Iron alloy phases Ferrite (α iron, δ iron) A … Wikipedia
Quench — A quench refers to a rapid cooling. In polymer chemistry and materials science, quenching is used to prevent low temperature processes such as phase transformations from occurring by only providing a narrow window of time in which the reaction is … Wikipedia
