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Unformatted text preview: α, all α with grains T4 α + β, α with bits of β o C. T1 L, all liquid T2 α + L, liquid with some α T3 α + L, just above T E C α = 7.9 wt% Ag C L = 71.9 wt% Ag w α = (71.9 – 40)/(71.9 – 7.9) = 49.8 wt% w L = 1 – w α = 50.2 wt% T4 α + β, all liquid present above T E goes to α + β primary α plain grains containing pure α eutectic solid striped grains containing α + β microconstituents w E = weight fraction of eutectic solid = w L just above T E w primary α = w α just above T E o D. T1 just above T E all liquid T2 just below T E α + β all eutectic solid o E. below T E contains eutectic solid and primary β grains o...
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This note was uploaded on 04/07/2008 for the course ENGR 240 taught by Professor Gross during the Fall '07 term at Bucknell.
- Fall '07