How to use phase diagrams and the lever rule to understand metal alloys
Billy Wu Billy Wu
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 Published On Sep 8, 2020

Metal alloys are used in many everyday applications ranging from cars to coins. By alloying a metal with another element we can control it's properties and microstructure. This video covers the basic concepts in metal alloys, phase diagrams and the lever rule, to help us understand how a materials properties are changed with varying compositions.

00:00 Introduction
00:12 Why is this important?
02:00 The basic building blocks - The periodic table
03:05 Basic concepts
04:12 What is a phase?
05:23 Complete solid solubility
06:42 Equilibrium phase diagrams for complete solid solubility
08:59 Limited solid solubility
10:01 Limited solid solubility example
10:56 Equilibrium phase diagram for limited solid solubility
12:46 Equilibrium microstructures
13:49 The lever rule
16:32 Lever rule derivation
18:08 Phase diagram example
22:07 Summary

Interested in learning more?
📚I highly recommend the textbook "Material Science and Engineering" by Callister and Rethwisch which you can get here https://amzn.to/3Ut5Efr (Amazon)

#PhaseDiagrams #Metals #LeverRule

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