Solution7

Solution7 - Solution 7 11-8 Solution(a(b(c 900C L...

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Solution 7 11-8 Solution: (a) β ' βγδ ε : (b) α , θ (c) 900ºC: + L ; peritectic 830 ºC: γ + L ; peritectic 700 ºC: δ + L ; peritectic 600 ºC: + L ; peritectic 550 ºC: + ; eutectoid 420 ºC: + L ; peritectic 250:ºC: + ' ;eutectoid 11-14 (a) hypoeutectic (b) 14% Sn (c) α:19% Sn L: 61.9% Sn %α= % 63 % 100 19 9 . 61 35 9 . 61 = × %L =37% (d) α:19% Sn β: 97.5% Sn %α= % 80 % 100 19 5 . 97 35 5 . 97 = × %β =20% (e) primary α:19% Sn %primary α=63%, eutectic:61.9% Sn, % eutectic =37% (f) α:2% Sn β: 100% Sn %α= % 66 % 100 2 100 35 100 = × %β =34% 11-16 %eutectic 10%Sn % 2 . 8 2 99 2 10 =
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Solution7 - Solution 7 11-8 Solution(a(b(c 900C L...

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