The line separating the a and (a+ L) regions is called a) The liquidus line b) The solidus line c) The solvus line d) The eutectic line

of iron Steel and cast iron represent different a) Crystal structures b) Alloys c) Allotropes d) Composites

Consider Cu - Ag Phase diagram below: 1200 A -Liquidus 1000 Liquid -Solidus 779°C (TE) 800 Temperature (°C) 600 400 a C 200 0 B 8.0 (Cag) Solvus a +L a + ß E 71.9 (CE) B+L 91.2 (CBE) B H 1 1 1 1 1 { ( L 20 40 60 80 100 (Cu) Composition (wt% Ag) (Ag) Consider 71.9% Ag-28.1% Cu, which is cooled below 779°C. What is the composition of the phases present just below 779°C and give the amount of beta phase present

Draw the iron-Fe3C phase diagram. Consider 0.4 and 1.1 wt% C steel alloy. It is cooled slowly from a temperature within austenite phase to room temperature. Show a) microstructure at 1000 °C b) microstructure at 730°C  c) microstructure at 715°C and d) microstructure at room temperature   e) determine the phase present, the phase compositions at 715 and 730 °C f) What do you say about mechanical properties of these alloys, depending on their microstructure at room temperature?