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Unformatted text preview: L phase region at 1340°C = ~57 wt% Ni c) At what T does complete melting of the alloy occur? The alloy passes into L phase completely at ~1370 ° C d) What is the C o of the last ∝ prior to complete melting? We take the intersection of the 1370 ° C and the Liquidus line, then draw a tie line over across the ∝+ . L phase We are able to deduce the C o that the last solid had by drawing a line straight to the composition axis. ~78%Wt Ni 9.7) For a ternary system, temp is a variable, pressure is constant, what is the max # of phases? Using the equation for Gibbs phase rule, where components are 3 and pressure is constant (N=1). P + F = C + N = 3+1 = 4 P = 4-F. To find the max # of phases, we let the degrees of freedom = 0, so P=4....
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This note was uploaded on 03/18/2011 for the course ENGR 302 taught by Professor Clausson during the Spring '11 term at CNUAS.
- Spring '11