Question
Explain the terms solid solution, eutectic, eutectoid and peritectic.
Answers
Solid Solution. When a homogeneous mixture of two (or more) atomic forms exists in solid state, it is known as solid solution.
Eutectic. A mixture of two (or more) phases which solidify simultaneously from the liquid alloy is called an eutectic. Alloys in which the components solidify simultaneously at a constant temperature the lowest for the given system, are called eutectic alloys.
Eutectoid. Eutectoid alloys are the alloys for which two solid phases which are completely soluble become completely insoluble on cooling before a certain temperature called eutectoid temperature.
Peritectic. A peritectic trformation involves a reaction between a solid and liquid that form a different and new solid phase. This three phase trformation occurs at a point called peritectic point.   Your Comment




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