Engineering materials and their applications
This edition of the classic text/reference book has been updated and revised to provide balanced coverage of metals, ceramics, polymers and composites. The first five chapters assess the different structures of metals, ceramics and polymers and how stress and temperature affect them. Demonstrates how to optimize a material's structure by using equilibrium data (phase diagrams) and nonequilibrium conditions, especially precipitation hardening. Discusses the structures, characteristics and applications of the important materials in each field. Considers topics common to all materials—corrosion and oxidation, failure analysis, processing of electrical and magnetic materials, materials selection and specification. Contains special chapters on advanced and large volume engineering materials plus abundant examples and problems.
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6.8 Austen ite transformation The key to understanding the variation in hardness
is a knowledge of the austenite transformation. Let us consider first the simplest
reactions, those that can occur with eutectoid (0.8% carbon) austenite. Later we ...
1 .2% carbon steel a. Heat to 1700°F (927°C), hold 1 hr Austenite b. Quench to
1050°F (656°C), hold 5 sec Austenite + ferrite + carbide c. Quench to 500°F (260°
C), hold 300 sec Austenite + bainite d. Quench to room temperature Martensite e.
When the carbon content in unalloyed steel is above 0.3%, it is possible to
harden thin sections by heating to produce austenite, followed by rapid
quenching in water to form martensite. However, low-alloy steels are used for
most heat- treated ...
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The Problem of Materials Selection and Development
Metallic Structures The Unit Cell
Effects of Stress and Temperature on Simple Metal
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