austenite transformation


austenite transformation
распад аустенита

Англо-русский словарь по сварочному производству. — М.: Физматгиз. . 1961.

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  • 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

  • transformation range — the temperature range within which austenite forms and ferrite or carbide progressively dissolves while ferrous alloys are being heated. Also the temperature range within which austenite decomposes to form ferrite and carbide on cooling …   Mechanics glossary

  • transformation range — noun : the range of temperature within which austenite forms or disappears when ferrous alloys are heated or cooled * * * Metall. the temperature range within which austenite forms when a ferrous metal is heated, or within which it disappears… …   Useful english dictionary

  • transformation temperature — the temperature at which a change in phase occurs or the limiting temperature of a transformation range. These critical points are denoted by symbols, e.g., Ac1; the temperature at which austenite begins to form on heating. There are 12 principal …   Mechanics glossary

  • transformation range — Metall. the temperature range within which austenite forms when a ferrous metal is heated, or within which it disappears when the metal is cooled. * * * …   Universalium

  • Diffusionless transformation — Diffusionless transformations classifications A diffusionless transformation is a phase change that occurs without the long range diffusion of atoms but rather by some form of cooperative, homogeneous movement of many atoms that results in a… …   Wikipedia

  • Diagramme temps-température-transformation — Le diagramme temps température transformation, ou diagramme TTT, est utilisé pour étudier les transitions de phases ou d état, spécialement pendant les traitements thermiques dit de revenu. Ce type de diagramme s obtient par des expériences de… …   Wikipédia en Français

  • isothermal transformation curve — also known as the time temperature transformation curve. If a small piece of steel is heated sufficiently slowly for it to become austenitic and then plunged into a salt bath and held at a constant temperature below the upper critical point for a …   Mechanics glossary

  • time-temperature transformation curve — an isothermal transformation diagram showing the relationship between temperature and the time taken for the decomposition of austenite when the transformation occurs at constant temperature …   Mechanics glossary

  • ACIER (technologie) — L’acier est un alliage de fer et de carbone renfermant au maximum 2 p. 100 de ce dernier élément. Il peut contenir de petites quantités d’autres éléments incorporés, volontairement ou non, au cours de son élaboration. On peut également y ajouter… …   Encyclopédie Universelle

  • Nickel titanium — Nickel titanium, also known as nitinol, is a metal alloy of nickel and titanium, where the two elements are present in roughly equal atomic percentages. Nitinol alloys exhibit two closely related and unique properties: shape memory and… …   Wikipedia

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