TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

austenite [2 records]

Record 1 2006-07-10

English

Subject field(s)
  • Physics of Solids
DEF

The high-temperature, high-symmetry (cubic) crystal microstructure of shape-memory alloys that changes upon cooling into martensite by a process called "martensitic transformation."

OBS

martensite: The low-temperature, low-symmetry (tetragonal) crystal microstructure of shape-memory alloys.

OBS

martensitic transformation: A diffusionless solid-to-solid phase transition characterized by a rapid change of crystal structure, observed in metals, alloys, ceramics, and proteins.

French

Domaine(s)
  • Physique des solides
DEF

Structure cristallographique cubique très symétrique des alliages à mémoire de forme, stable à haute température, qui résulte de la transformation thermoélastique sans diffusion (transformation martensitique) de la martensite lors d'un chauffage.

OBS

martensite : Structure cristallographique tétragonale, stable à basse température.

Spanish

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Record 2 2004-12-10

English

Subject field(s)
  • Steel
DEF

A solid solution of one or more elements in face-centered cubic iron (gamma iron).

OBS

Unless otherwise designated (such as nickel austenite), the solute is generally assumed to be carbon.

French

Domaine(s)
  • Acier
DEF

Constituant micrographique des aciers, solution solide de fer gamma et de carbone.

Spanish

Campo(s) temático(s)
  • Acero
DEF

Carburo de hierro presente en los aceros templados.

CONT

La austenita es una solución sólida de hierro y de carbono. Solamente es estable a temperaturas muy elevadas, pero, mediante un templado muy enérgico, se logra que permanezca artificialmente en equilibrio en ciertos aceros especiales (particularmente en los aceros al manganeso) llamados por dicha razón aceros austeníticos.

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