Upper critical temperature

Upper critical temperature is the temperature, below which cementite starts to form as a result of ejection from austenite in the hypereutectoid alloys.

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Thermally Activated Transformation

Thermally activated transformation is a reaction that depends on atomic thermal fluctuations; the atoms having energies greater than an activation energy will spontaneously react or…

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Thermal Stress

Thermal stress is stress created by any change in temperature to a material. These stresses can lead to fracture or plastic deformation depending on the…

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Thermal Shock

Thermal shock is a variation in temperature which causes tension in a material. It frequently causes breakage in the material, and is most common in…

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Thermal fatigue

Thermal fatigue refers to a progressive degradation of a material due to cyclic fluctuations in temperature. Thermal fatigue primarily afflicts metals because they are highly…

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Thermal Expansion Coefficient

The thermal expansion coefficient is defined as the fractional increase in the linear dimension of a sample of a substance with increase in temperature at…

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Thermal conductivity

Thermal conductivity (often denoted k, λ, or κ) refers to the intrinsic ability of a material to transfer or conduct heat. It is evaluated primarily…

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Specific Heat

Specific heat capacity is the amount of heat energy required to raise the temperature of a substance per unit of mass. The specific heat capacity…

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Normalizing

Normalizing process is a heat treatment process for making material softer but does not produce the uniform material properties as produced with an annealing process….

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Lower Critical Temperature

Lower critical temperature The minimum body temperature that can be tolerated by an organism. Below this temperature, the biochemical properties of cell structures, especially membranes,…

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