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For a lead-tin alloy of composition Pb-30 wt.% Sn are heated to 300°C and slowly cooling...
For a lead-tin alloy of composition Pb-30 wt.% Sn are heated to 300°C and slowly cooling down to room temperature. A Eutectic phase diagram of lead-tin alloy is shown in figure 3. What are the expected phases at 250°C, 150°C and at room temperature and estimate approximate phase fractions at these temperatures. Schematically draw the microstructures that would form at 250°C, 150°C and at room temperature. For a lead-tin alloy of composition Pb-30 wt.% Sn are heated to 300°C and...
5. Three steels with a composition of Fe-0.2 wt.% C, Fe-0.76 wt.% C and Fe-1.1 wt.%...
5. Three steels with a composition of Fe-0.2 wt.% C, Fe-0.76 wt.% C and Fe-1.1 wt.% C are produced by melting and slowly cooling down to room temperature. By referring the phase diagram provided in figure 3, what would you expect in terms of phase changes (solidification sequence) in all three alloys as the temperature of the alloys reduces from melting temperature to room temperature? What will be the approximate weight fraction of each of those micro constituents at room...
please answer question 2,3,4 A critical feature of steel is that a considerable amount of...
please answer question 2,3,4
A critical feature of steel is that a considerable amount of carbon can be dissolved in the austenite, phase, (up to 2.14 w/o at 1147"C), whereas carbon is essentially insoluble in ferrite, Cooling from point d to e, just above the eutectoid but still in the an increased fraction of the +y region, will produce phase and a microstructure similar to that shown: the particles precinitates out in the form af an intermetallic.compound called iron-carbide...
For a lead-tin alloy of composition Pb-30 wt.% Sn are heated to 300°C and slowly cooling down to room temperature. A Eutectic phase diagram of lead-tin alloy is shown in figure 3. What are the expected phases at 250°C, 150°C and at room temperature and estimate approximate phase fractions at these temperatures. Schematically draw the microstructures that would form at 250°C, 150°C and at room temperature. For a lead-tin alloy of composition Pb-30 wt.% Sn are heated to 300°C and...
5. Three steels with a composition of Fe-0.2 wt.% C, Fe-0.76 wt.% C and Fe-1.1 wt.% C are produced by melting and slowly cooling down to room temperature. By referring the phase diagram provided in figure 3, what would you expect in terms of phase changes (solidification sequence) in all three alloys as the temperature of the alloys reduces from melting temperature to room temperature? What will be the approximate weight fraction of each of those micro constituents at room...
please answer question 2,3,4
A critical feature of steel is that a considerable amount of carbon can be dissolved in the austenite, phase, (up to 2.14 w/o at 1147"C), whereas carbon is essentially insoluble in ferrite, Cooling from point d to e, just above the eutectoid but still in the an increased fraction of the +y region, will produce phase and a microstructure similar to that shown: the particles precinitates out in the form af an intermetallic.compound called iron-carbide...
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