Introduction to Engineering Materials

This unit explores the fundamental concepts that link atomic structure, bonding, and crystal structure to the mechanical and physical properties of materials. Students will gain insights into the microstructures of key material classes, including polymers, metals, composites, and ceramics, and how these structures influence their behaviour. Students will learn about deformation mechanisms in crystalline solids and the processes that strengthen metals, including the role of phases in alloys. Additionally, the unit introduces phase diagrams, focusing on their application to ferrous alloys, and covers phase transformations through time-temperature diagrams to understand heat treatment processes for plain carbon steels and cast irons. Throughout the unit, emphasis is placed on understanding the structure-property relationships in materials such as steel alloys, cast iron, and stainless steels, preparing students for informed materials selection in engineering applications.