Question: Q1) In this phase diagram, what are the eutectic composition and temperature? Explain the eutectic transformation. Q2) Identify the dominant phase at two different temperatures:

Q1) In this phase diagram, what are the eutectic composition and temperature?

Q1) In this phase diagram, what are the eutectic composition and temperature? Explain the eutectic transformation.

Q2) Identify the dominant phase at two different temperatures: 1500 and 1400 oC. Sketch the microstructure of the composite for each temperature.

Q3) The alloy is cooled down to 720 C, please answer the following questions:

  1. How many phases are present and what are their names?
  2. For the phases identified above, what are their compositions for each phase? Sketch the micrograph, taking into account the features of the phase diagram.
  3. What is the weight fraction of each phase?
  4. What is the weight fraction for pearlite in the alloy?

Figure Q1 displays the phase diagram for iron-carbon alloys. An alloy with composition of 1.1wt%C is held at a given temperature

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