Foundations of Materials Science and Engineering
6th Edition
ISBN: 9781259696558
Author: SMITH
Publisher: MCG
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Chapter 8.15, Problem 55SEP
(a)
To determine
Design a Pb-Sn alloy with 50 solid and 50 liquid phase fraction at given temperature.
(b)
To determine
Refer Figure 8.12 and find the amount of each component should be used to produce 100g of the entire alloy.
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Your friend in the lab has been working with a 90% Dc, 10% Vr alloy and developed the time-temperature transformation (TTT) diagram below, including the formation of a martensite (M) phase.
You have 3 pieces of this alloy in your furnace currently held at 800 °C. State the steps that you would need to obtain this alloy with the following phase fractions at room temperature:
i. 100 % eta (η) phase
ii. 100 % beta (β) phase
iii. 50% martensite (M), 50% beta (β) phase
A 50 wt% Pb–50 wt% Mg alloy is slowly cooled from 700°C to 400°C. (a) At what temperature does the first solid phase form? (b) What is the composition of this solid phase? (c) At what temperature does the liquid solidify? (d) What is the composition of this last remaining liquid phase?
Problem 4
A 50 wt% Ni-50 wt% Cu alloy is slowly
cooled from 1400°C (2550°F) to 1200°C
(2190°F).
(a) At what temperature does the first solid
phase form?
(b) What is the composition of this solid
phase?
(c) At what temperature does the liquid
solidify?
(d) What is the composition of this last
remaining liquid phase?
Chapter 8 Solutions
Foundations of Materials Science and Engineering
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How to balance a see saw using moments example problem; Author: Engineer4Free;https://www.youtube.com/watch?v=d7tX37j-iHU;License: Standard Youtube License