3 Days
I.D.#99015
This seminar is designed to provide the attendee with basic
information and terminology associated with the science and
engineering of metals and alloys. Long the province of the professional
metallurgist, this discipline now finds an ever-increasing number of
engineers and technicians educated and trained in other fields who
are required to make judgments concerning alloy compositions and
processing routines with little or no formal background in metallurgy.
Realizing that the properties of metals and alloys are determined by
their microstructures and, in turn, that microstructure is controlled by
thermal and mechanical processing, this seminar begins with a brief
examination of the way in which metal atoms interact and bond to
form a basic crystal structure. The casting and solidification of pure
metals is examined briefly as a prelude to an explanation of the way
in which alloys solidify. The concepts of solid solutions and phase
diagrams are introduced in terms of common alloy systems such as
steels and aluminum-base alloys. Thermal and mechanical processing
methods for strengthening and toughening alloys are discussed, with
special emphasis on the microstructure alterations that account for
the changes in the properties of steels as a result of heat treatment.
Precipitation hardening in alloys based on nonferrous metals (such as
aluminum) is also explained.
After introducing the concepts and practices associated with control
of microstructure, the relationships between microstructure and
mechanical properties (hardness, strength, toughness, ductility, fatigue
life, etc.) will be discussed and related to industrial practices for such
processes as cold working, hardening and tempering of steels, and
annealing. The methods used to test for mechanical properties will be
reviewed and such terms as yield strength, tensile strength, fatigue
limit, CVN toughness, and others will be explained.
This seminar will dispel some of the “witchcraft and black magic”
often attributed to the practice of metallurgy. A better appreciation of
the basics of the field will benefit those persons who find themselves
involved in the specification and processing of metals as well as in
quality control functions.
Learning Objectives
Upon completion of this seminar, participants will be able to:
Recognize and define key elements of terminology used in
metallurgical practice
Associate the control of the structure of metals and alloys with the
properties that they exhibit
Associate processing techniques with control of microstructure
Describe and interpret the results of mechanical property testing of
metals
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