Question

Y+L 700 73 698°C so 8+L L 1200 IS 78 Temperature (°C) 600 167 P 598°C 187 Temperature (°F) 560°C E 74 1000 € +L 500 60 70 80 90 * Cu Zn → Composition (wt% Zn) 50 kg of a 20%Cu-80% Zn alloy is slowly cooled from 720°C. 1. At what temp does the first solid appear? 2. At what temp does the last liquid disappear? Calculate the mass in each cell: (The numbered cells are 1 point each) Temp Phase Zn 599°C 597°C 6.

Answer 1

* Answer - 720°c to 1000'c alloy totaly cooled and it form solid. N upon cooling 720°c the first solid phase form at temperature at which vertide line at this composition interact Liquid phase boundary.in. Approximately 77906 terriperature at which tast liquid phase dissapear when it reaches to the Eutectic temperatuse. compositions at which 599 92%. Cul and 8%. zn. ocene Phase Temp 5996 5976: Liquid con Liquid .srt loro? Solid boli