MSE104 Microstructure and Properties of Materials
Introduction to Phase Metallurgy (9 lectures)
I give 9 lectures, supported by 2 tutorials, introducing phase metallurgy. Here we examine phases, phase diagrams and how to use them. First we look at simple binary phase diagrams, how to convert from weight to atomic/molar fractions and the Lever Rule. Then we examine the underlying thermodynamics and relate Gibbs Energy to phase diagrams. Then we look briefly at the kinetics of transformations and solidification in fast cooling (Scheil) situations. Finally we apply these ideas to steels and the iron-carbon system.
The course is taught by Peer Instruction. Here, students review the material ahead of the class session, rather than afterwards as in classical lecture approaches. The class session then consists of examining simple conceptual questions that are discussed in class. Building on the concepts to answer more complex mathematical problems is then the subject of the question sheets and tutorials, building to the interim January and final June exams. Video 1.2 below explains the Peer Instruction approach more fully. I trialled this in October 2012 – my note on the results is here.
The notes (.pdf) are here. In Lecture 4 we do some additional examples, which are here. The tutorial questions and answers are here: Tutorial1 (Answers), Tutorial2 (Answers). Learning Catalytics is used to manage the pre-session reviews and in-class discussions.
Videos to support the notes, for those who like lectures, are below. The advantage of videos over the typical expository lecture style are that they can be used in revision and review as well as for the initial presentation, as well as being more convenient for students. The video numbering matches that of the Chapters in the current version of the written notes.
Lecture 6 – 6.1 (The Scheil Equation)
Lecture 7 – 7.1 (Diffusion, Nucleation and Growth)
Lecture 9 –9.1 (Non-equilibrium cooling of steels)