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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The matrix of the material is similar to steel with good ductility, but the flakes act
as notches and the ductility is below 1%. Adding a small amount of magnesium (
0.05%) causes the graphite to crystallize in the form of spheres (Fig. 4.256).
The rare earths produce a rigid grain boundary network in the microstructure,
such as Mg9Ce, which resists flow. Careful control of the network is necessary,
since the second phases also limit room-temperature ductility. If they are present
Admittedly the hardness may decrease slightly, but the ductility should improve.
We find the relations shown in Fig. 6.18. The martensite transforms to ferrite plus
fine carbide. The higher the tempering temperature, the coarser the carbide, the ...
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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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