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A Mg-Pb alloy of composition 81 wt% Pb and 19 wt% Mg is slow…

A Mg-Pb alloy of composition 81 wt% Pb and 19 wt% Mg is slowly cooled from 700°C. At what temperature does the first solid form and what is the composition of the solid?

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What is the maximum solubility of Sn in Pb?

What is the maximum solubility of Sn in Pb?

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Which equation best describes the eutectoid reaction

Which equation best describes the eutectoid reaction

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Use the TTT diagram below and assume that the initial temper…

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 575°C, held for 10 seconds, rapidly cooled to 350°C, held for 100 seconds, then quenched to room temperature.

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For the Cu-Ni phase diagram below, what fraction of the syst…

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

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A Mg-Pb alloy of composition 30 wt% Pb and 70 wt% Mg is slow…

A Mg-Pb alloy of composition 30 wt% Pb and 70 wt% Mg is slowly cooled from 700°C. At what temperature does the first solid form and what is the composition of the solid?

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Which microstructure is spheroidite?

Which microstructure is spheroidite?

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What is the approximate Brinell Hardness Number for a specim…

What is the approximate Brinell Hardness Number for a specimen of a eutectoid iron-carbon alloy (0.76 wt% C) that is first completely transformed to austenite, then cooled to room temperature at 160 oC/s cooling rate (see the attached figures)?

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Rank the following iron-carbon alloys and associated microst…

Rank the following iron-carbon alloys and associated microstructures from the softest to the hardest:I. 0.25 wt% C with coarse pearliteII. 0.80 wt% C with BainiteIII. 0.25 wt% C with spheroiditeIV. 0.80 wt% C with fine pearlite

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Use the TTT diagram below and assume that the initial temper…

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?

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