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Name the microstructural product(s) of a 4340 alloy steel that is first completely transformed to...

Question:

Name the microstructural product(s) of a 4340 alloy steel that is first completely transformed to austenite and then cooled to room temperature at a rate at 1{eq}^o {/eq}C/s. Figure below is in the continuous cooling transformation diagram for 4340 alloy steel on which is superimposed several cooling curves of specified cooling rates.

Continuous cooling transformation

The phase diagram which is formed during heat treatment of steel is known as continuous cooling transformation (CCT). The CCT diagram is more beneficial than the TTT diagram due to its simplicity.

Answer and Explanation:

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Given data:

  • The cooling rate of the alloy is: {eq}1^\circ {\rm{C/s}} {/eq}.

The following figure shows the Continuous cooling transformation...

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What are Heating and Cooling Curves?

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