Question

An iron-carbon alloy with 1.5 wt % C is placed in a furnace where the temperature is increased. Roughly, at what temperature does the a) first liquid phase form and when is it b) completely liquid?

Group of answer choices

None of the answers is correct.

a. a) 1394 C b) 1538 C

b. a) 1275 C b) 1425 C

c. a) 912 C b) 1400 C

d. a) 727 C b) 1147 C

Answer 1

For 1.5 wt . C of iron - Carbon alloy 1275°C and first liquid phase will form at Complete liquid phase at 1425°C Option b. is correct 149301 139407 11470 rt a ou 0.76 1 1.5 2 Carbon yout First liquid phase is at A, it is higher than 1147°c but less than 1394°C so 12750 Complete liquid phase is at B, it is higher than 1394ic but less than 1493°C so 1425'c . So option b is correct.