GTBL042-14 GTBL042-Callister-v2 August 29, 2007 8:59
Chapter 14 Synthesis, Fabrication, and
Processing of Materials
This photograph shows the aluminum beverage can in various stages of production. The can is formed from a single sheet of an
aluminum alloy. Production operations include drawing, dome forming, trimming, cleaning, decorating, and neck and flange
forming. (PEPSI is a registered trademark of PepsiCo, Inc. Used by permission.)WHY STUDYSynthesis, Fabrication, and Processing of Materials?
On occasion, fabrication and processing procedures
adversely affect some of the properties of materials. For
example, in Section 11.8 we note that some steels may
become embrittled during tempering heat treatments.
Also, some stainless steels are made susceptible to
intergranular corrosion (Section 16.7) when they are
heated for long time periods within a specific
temperature range. And, as discussed in Section 14.4,regions adjacent to weld junctions may experience
diminishments in strength and toughness as a result of
undesirable microstructural alterations. It is important
that engineers become familiar with possible
consequences attendant to processing and fabricating
procedures in order to prevent unanticipated material
failures.