1.

A 34.6% Pb-Sn alloy is cooled just below the eutectic temperature (183°C). What is the fraction of proeutectic α and eutectic mixture (α+β)?

A. 70% and 30%
B. 64% and 36%
C. 36% and 64%
D. 30% and 70%
Answer» C. 36% and 64%


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