Question

2. For the CA phase diagram, answer the following Label the figure and add is part of your answer sheet a) What is the cutectie temperature and compositi? (point) b) In the context of this diagram, what does the symbol report pasi c) Assume slow cooling and that equilibrium conditions exist for the alley face this is being cooled from 1000" when will the first solid form and what composite would the solid have points) 1) At the same composition listed above. Las all the planes and their compositions 2.600 "C. perinte) c) At the same composition of To W. Ag. What will be the phase 600C Show your work. 3 ) Draw and label the microstructure 600 for the same composite of Tots AS. (points) O 6 20 40 300 1200 A 1000 Lo Sour 2290 80 719 1400 1200 600 1000 800 400 600 200 60 100

Answer 1

a عودة Eutectic temperature Eulectic composition is 7109 wtel Ag B is is Solid solution of Cu to Ag. first solid will solid will form at 779.5°c and the composition of the solid would be around ld 8.2 wtl. Ag. At Good, the phases that are prevent a and ß d around 2 wt% Ag. around 96 with Ag. @ we apply lever sale at Goole Y B 96 wtore 70 2wti 96-70 2X100 - Amount of d-phane 96- 2 27.66% 0 70-2 Amount *100 = 72.34). of B-phane 96-2 CS Scanned with CamScanner

Eutectic mixture of at B. » procutectic -f phase Microstructure at Gooc 70 wtt. Ag. CS Scanned with CamScanner