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What type of phase transformation is described by a liquid phase and solid phase yielding another...

What type of phase transformation is described by a liquid phase and solid phase yielding another solid

phase composition upon cooling?

What is the strengthening mechanism for martensite?

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Answer #1

The phase transformation which is discribed by a liquid phase and solid phase yielding another solid phase is Peritectic reaction. In peritectic reaction, three phase are there in which two phases(one is liquid) react to give a new single solid phase. This is happening on cooling.

Martensite is a form of steel which is hard and crystalline in nature. Formed from austensite having face centered cubic structure. On quenching, it transforms to body centered cubic structure which is highly strained forms huge dislocations in it. This counts for the strengthening mechanism for martensite.

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