diffusionless

diffusionless
That does not involve diffusion

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  • 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

  • Diffusionless transformations — are a class of phase changes that do not occur by the long range diffusion of atoms but rather by some form of cooperative, homogeneous movement of many atoms that results in a change in crystal structure. These movements are small, usually less… …   Wikipedia

  • diffusionless transformation — Смотри бездиффузионное превращение …   Энциклопедический словарь по металлургии

  • бездиффузионное превращение — [diffusionless transformation] фазовое превращение при котором атомы упорядоченно кооперативно перемещаются (сдвигаются) на растояния меньше межатомных без обмена атомов местами так, что соседи любого атома в исходной фазе остаются его соседями в …   Энциклопедический словарь по металлургии

  • Grain boundary — A grain boundary is the interface between two grains in a polycrystalline material. Grain boundaries disrupt the motion of dislocations through a material, so reducing crystallite size is a common way to improve strength, as described by the Hall …   Wikipedia

  • Phase transition — This diagram shows the nomenclature for the different phase transitions. A phase transition is the transformation of a thermodynamic system from one phase or state of matter to another. A phase of a thermodynamic system and the states of matter… …   Wikipedia

  • Martensite — For the transformation, see Diffusionless transformations. Iron alloy phases Ferrite (α iron, δ iron) A …   Wikipedia

  • Shape memory alloy — A shape memory alloy (SMA, also known as a smart alloy, memory metal, or muscle wire) is an alloy that remembers its shape, and can be returned to that shape after being deformed, by applying heat to the alloy. When the shape memory effect is… …   Wikipedia

  • Martensit — ist ein hartes, ferromagnetisches und metastabiles Gefüge in Metallen, das diffusionslos und athermisch durch eine kooperative Scherbewegung aus dem Ausgangsgefüge entsteht. Dabei muss das Material von der Temperatur einer Hochtemperaturphase… …   Deutsch Wikipedia

  • martensitic — adjective a) Of or pertaining to the mineral martensite b) Describing a diffusionless transition of one crystal structure to another generated by coordinated atomic, ionic or molecular displacements over small distances (first studied in the… …   Wiktionary

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