1 Module 2.3.1 Mechanical Behavior of Metals and Alloys Christopher R. Owen School of Materials Engineering Purdue University Copyright Edmonds Community College 2016 This material may be used and reproduced for educational purposes only. Abstract: This module looks at the mechanical behavior of metals under stress and investigates methods commonly used to strengthen metals and alloys. Building on the module on Hardness of Brass, it discusses the methods used to enhance the strength of metals and alloys. Density (weight) and elastic modulus (stiffness), which can be important in many applications, are also discussed. While the emphasis here is on mechanical properties of metals, these principles apply broadly to many materials and accompanying property classes. Completion of this unit will prepare technologists to understand and handle real design, materials selection and process design problems, such as the substitution of aluminum for steel in the Ford F-150 truck, discussed in a set of separate modules. It should also be realized that while we focus here on structure, properties and processing factors related to mechanical properties of metals, that metals and alloys also have important optical, magnetic and electronic applications. Students interested in these properties should refer to the references in this Chapter. Module Objectives: The student will be able to: • Define elastic modulus and discuss the concepts related to density of metals; • Explain the concepts of strength and ductility; • Differentiate between elastic and plastic deformation; • Show how to determine yield stress, tensile strength and breaking strength from a stress-strain diagram;
Mechanical Behavior of Metals and Alloys
Jun 23, 2023
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