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Materials for engineering, 3rd Edition - (Malestrom)

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Preface to the first edition<br />

This textbook represents an attempt to present a relatively brief overview of<br />

<strong>Materials</strong> Science, the anticipated readership being students of structural and<br />

mechanical <strong>engineering</strong>. It is in two sections – the first characterising<br />

<strong>engineering</strong> materials, the second considering structure–property relationships.<br />

Emphasis is thus placed on the relationship between structure and properties<br />

of materials, starting with the concept of ‘structure’ at three levels – crystal<br />

structure, microstructure, and molecular structure. The discussion of<br />

microstructure introduces the topics of phase trans<strong>for</strong>mations, metallography<br />

and phase diagrams – none of which would be familiar to the intended readership.<br />

After a section on the determination of mechanical properties, the remaining<br />

four chapters deal with the four important classes of <strong>engineering</strong> materials,<br />

namely metals, ceramics, polymers and composites. It is estimated that there<br />

are some 40 000 metallic alloys in existence, over 5000 polymers and some<br />

2000 ceramic materials, so there is some justification in discussing metals<br />

and alloys at the greatest length. In that chapter, an attempt has been made<br />

to consider initially the general principles of strengthening, so that the individual<br />

families of <strong>engineering</strong> alloys can be discussed in the light of this introduction.<br />

About equal emphasis is placed on the remaining classes of materials.<br />

The tables of data within the text, and the Appendices, have been selected<br />

to increase the value of the book as a permanent source of reference to the<br />

readers throughout their professional life. The latter include:<br />

Useful constants<br />

Unit conversion factors<br />

Selected data <strong>for</strong> some elements<br />

A list of sources of material property data, in the <strong>for</strong>m of both handbooks<br />

and database software.<br />

The Periodic Table of the elements<br />

The author is pleased to acknowledge the encouragement and suggestions<br />

given by the members of the University Books Sub-Committee of the Institute<br />

of <strong>Materials</strong>, Minerals & Mining. I am also most grateful to Professors B.<br />

Cantor and D. G. Petti<strong>for</strong>, FRS, <strong>for</strong> the facilities they have kindly provided<br />

<strong>for</strong> me in the Ox<strong>for</strong>d University Department of <strong>Materials</strong> and to Peter<br />

Danckwerts <strong>for</strong> his efficient dealing with editorial matters.

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