Given the binary eutectic phase diagram for Ni$-$Cr from the online tutorial $($Figure $4),$ indicate

where you would find:

Liquid $(2)$

Liquid $+$ Beta $(2)$

Liquid $+$ Alpha $(2)$

Alpha $+$ Beta $(2)$

Euctectic $(2)$

Liquidus $(2)$

What is the composition of alpha at the eutectic temperature $($wt $\%$ Ni and Cr $)?(3)$

Remaining questions are based on the Iron$-$Iron Carbide phase diagram

$($LOOK AT LAB $4$ BACKGROUND FOR THESE QUESTIONS$)$

What is the maximum carbon content in Austenite? $(3)$

What is the eutectic $($NOT eutectoid$)$ temperature of Steel? $(3)$

What constituent of steel always contains $0\mathrm{.}77$wt$\%$ carbon? $(3)$

What are the relative proportions of constituents in $4140$ steel $(0\mathrm{.}4\%$C$)?(6)$

What is the purpose of adding alloying elements like nickel, chromium, molybdenum and

boron to steels? $(5)$

Help $6-17$