1.For a 40%Sn alloy, how much of the alpha phase (%) is there at 100 degrees C?

Question

1.For a 40%Sn alloy, how much of the alpha phase (%) is there at 100 degrees C? 2.For a 40%Sn alloy, how much of the beta phase (%) is there at 100 degrees C? 3. For a 40%Sn alloy, how much of the eutectic microconstituent (%) is there at 100 degrees C?
4.For a 40%Sn alloy, how much of the proeutectic microconstituent (%) is there at 100 degrees C?
1.For a 40%Sn alloy, how much of the alpha phase (%) is there at 100 degrees C? 2.For a 40%Sn alloy, how much of the beta phase (%) is there at 100 degrees C? 3. For a 40%Sn alloy, how much of the eutectic microconstituent (%) is there at 100 degrees C?
1.For a 40%Sn alloy, how much of the alpha phase (%) is there at 100 degrees C? 2.For a 40%Sn alloy, how much of the beta phase (%) is there at 100 degrees C? 3. For a 40%Sn alloy, how much of the eutectic microconstituent (%) is there at 100 degrees C?
4.For a 40%Sn alloy, how much of the proeutectic microconstituent (%) is there at 100 degrees C?
317? 232? e 200 180 18-3 979 120 100 0 S115 2250 3 40 45055 0 65 0 75 80 8906 100 wt % Sn

Explanation / Answer

a . At tie line of 100 deg C, Calpha = 4%,

b. At tie line of 100 deg C, Cbeta = 100 %

c. For eutectic microconstituent,

We= (40 - 18.3)/ ((61.9-40) + (40 - 18.3))*100 = 49.77 %

d. For proeutectic microconstituent,

We= (61.9-40) ((61.9-40) + (40 - 18.3))*100 = 50.23 %

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