Is it possible to have a lead-tin alloy that, at equilibrium, consists of alpha phase of composition ~18.3 wt% Sn and also a beta phase of composition ~61.9 wt% Sn? If so, what will be the approximate temperature of the alloy?

For the Cu-Ni phase diagram below, what fraction of the system is solid for 55 wt% Ni at 1300C?

The atoms surrounding an edge dislocation experience what kinds of strains? (Select all that apply)

Refer to the phase diagram and figures below and identify the microstructure that corresponds to 50wt% Sn- 50wt%Pb at 150°C

Referring to the phase diagram below, what is the eutectic composition

Consider 0.5 kg of austenite containing 0.85 wt% C, cooled to below 727˚C.  What is the proeutectoid phase?

What is the microstructure of 10 wt% Pb- 90 wt% Mg at 150 °C (Select the letter corresponding to the microstructure present (A-E) at the given composition and temperature)?

Use the TTT diagram below and assume that the initial temperature is 760 ˚C What is the nature of the microstructure, in terms of 1) microconstituents present and 2) approximate percentages of the microconstituents when the specimen is rapidly cooled to 450°C, held for 10 seconds, and then quenched to room temperature?

What is the composition of an iron–carbon alloy for which the fraction of total cementite is 0.10?

Compute the rate of a reaction that obeys Avrami kinetics, assuming that the constants n and k have values of 3.385 and 1.162 × 10–9, respectively, for time expressed in seconds.