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What it the effect of non-equilibrium cooling on solid state phase tranformation in metals and alloys?
Wiki User
∙ 13y ago
Basically there are two types of effects that may happen during this non-equilibrium cooling.
1. Micro-segregation
-result in "hot shortness" which means the material will melt below the temperature of equilibrium solids.
-this can be fixed by homogenization heat treatment, heat and hold material to allow diffusion to even out the composition gradients.
2. Macro-segregation
-composition gradients on scale of part because some locations solidify before other location in part.
-this situation can only be removed by mechanical mixing, in other words hot work or cold work
Hope this helps
Wiki User
∙ 13y ago
Wiki User
∙ 12y agofreezing range of the alloy will
increase and phases appears on equilibrium cooling observrd will observe but at some different temp and pressure conditions.
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