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Engineering Materials Technology, 2nd Edition
book

Engineering Materials Technology, 2nd Edition

by William Bolton
October 2013
Intermediate to advanced content levelIntermediate to advanced
468 pages
20h 15m
English
Newnes
Content preview from Engineering Materials Technology, 2nd Edition
2
Structure of metals
2.1 Metals as crystalline
Metals are crystalline substances. Figure 2.1 shows a section of a metal. The
term
grain
is used to describe the crystals within the metal. A grain is merely a
crystal without its geometrical shape and flat faces because its growth was
impeded by contact with other crystals. Within a grain the arrangement of
particles is just as regular and repetitive as within a crystal with smooth faces. A
simple model of a metal with its grains is given by the raft of bubbles on the
surface of a liquid (Figure 2.2). The bubbles pack together in an orderly and
repetitive manner but if 'growth' is started at
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Publisher Resources

ISBN: 9781483141077