(Solved): A Pb-Sn alloy contains 10% primary a and 90% eutectic microconstituent immediately after the eutec ...

A Pb-Sn alloy contains 10% primary a and 90% eutectic microconstituent immediately after the eutectic reaction has been completed. 400 O L 300 Solidus Temperature (°C) 200 Solidus 19 183° -Solvus ? + ß Pb 20 60 40 Weight percent tin Determine the composition (in wt% Sn) of the alloy. % 100 Liquidus ? a + L 61.9 Liquidus B+L 97.5 Solvus 80 -B Sn