1) A Cu-Ni alloy with 36 wt%Ni (the balance is wt%Cu) is slowlycooled from 1500oC to a temperature that is halfwaybetween the liquidus and solidus temperatures.
Using the magnified section of the Cu-Ni phase diagram shown inFig.9.3 (Callister 8e), what is the composition of the solid at thattemperature?
Express your answer in wt%Ni. A maximum tolerance of +/- 5% isallowed in your answer.
2) A Cu-Ni alloy is slowly cooled to a temperature at which bothliquid and solid coexist. If the composition of the solid is 65wt%Ni (the balance is Cu), then what is the temperature?
Use the Cu-Ni phase diagram shown inFig. 9.3 (Callister8e).
Express your answer in oC. A maximum tolerance of +/- 1%is allowed in your answer.
3) A Cu-Ni alloy is slowly cooled to 1250oC. Bothliquid and solid coexist. If the volume fraction of liquid is 55%,determine the overall composition of the alloy.
Use the Cu-Ni phase diagram shown inFig. 9.3 (Callister 8e).
Express your answer in wt%Ni. A maximum tolerance of +/- 4% isallowed in your answer.
