Please do not forget Details and Steps. Thanks a lot. If 500 g of a 40 wt % Cu-6

Question

Please do not forget Details and Steps.

Thanks a lot.

If 500 g of a 40 wt % Cu-60 wt % Ag alloy is slowly cooled from 1000 degree C to just below 780 degree C (see Fig. below) : How many grams of liquid and proeutectic alpha are present at 810 degree C? How many grams of liquid and proeutectic alpha are present at 780 degree C + Delta T? How many grams of alpha are present in the eutectic structure at 780 degree C - Delta T? How many grams of beta are present in the eutectic structure at 780 degree C - Delta T?

Explanation / Answer

(a)780 celsius consider a point at 40% silver
liquid=(40-10)/(48-10)=.78%=394.7
alpha=105.26g

u should take the opposite distance of the point to line i.e for liquid u should take point to alpha state

b. alpha=71.9-40/71.9-7.9 * 500=149.2 gm
liquid=250.78 g

c. alpha =91.2-40/91.2-7.9 * 500
=307.322 gm

d. beta=192.677 gm

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