mat33hw9

mat33hw9 - 97 wt% .141 19 wt% .859 2) Sketches: 3) This...

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Mat. 33 Homework # 9 4/5/09 1) i) Pb-30 wt.% Sn at 300 o C Name of phase Chemical Composition of Phase Proportion (weight fraction of phase) Liquid C L = 100 wt% 1 ii) Pb-30 wt.% Sn at 184 o C Name of phase Chemical Composition of Phase Proportion (weight fraction of phase) L 60 wt% .268 α 19 wt% .732 iii) Pb-30 wt.% Sn at 182 o C Name of phase Chemical Composition of Phase Proportion (weight fraction of phase)
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Unformatted text preview: 97 wt% .141 19 wt% .859 2) Sketches: 3) This alloy is hypoeutectoid because the mass fraction of 0.09 wt% for C falls between the values of 0.020 and 0.76 wt%. 4) A) (0.76-0.3)/(0.76-.020) = .6216*1.5*0.003 = .0027973 B) (0.76-0.3)/(0.76-.020) = .6216*1.5*0.997/2 = .46482 C) (0.76-0.3)/(0.76-.020) = .6216*1.5*0.997/2 = .46482 5)...
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mat33hw9 - 97 wt% .141 19 wt% .859 2) Sketches: 3) This...

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