Mechanical and physical properties of metals and alloys are governed by microstructure, rather than chemical compositions. In this lecture, fundamentals of microstructural metallurgy are given based on thermodynamics and kinetics. Fist half of this lecture is focused on phase equilibria and phase stability in terms of enthalpy and entropy, and second half is focused on microstructure formation based on diffusional phase transformations in terms of FIck's laws. Students thus can describe and evaluate mathematically how the microstructure is formed and controlled.
Describe and explain mathematically the phase stability and phase equilibria of the phases present in metals and alloys. In addition, describe and explain mathematically the microstructure change based on Fick's firsst and second laws.
Phase stability, microstructure changes, equilibrium thermodynamics, Fick's fist and second laws
|✔ Specialist skills||Intercultural skills||Communication skills||Critical thinking skills||Practical and/or problem-solving skills|
interactive lectures, together with quiz
|Course schedule||Required learning|
|Class 1||Phase stability and Internal Energy|
|Class 2||Enthalpy and Entropy|
|Class 3||Free energy of alloys (Ideal solution, regular solution)|
|Class 4||Free energy and phase diagrams|
|Class 5||Homogeneous nucleation and heterogeneous nucleation|
|Class 6||Spinodal decomposition|
|Class 7||Precipitation reactions|
|Class 8||intermediate examination||intermediate examination|
|Class 9||Fick's first and second laws|
|Class 10||Solution of diffusional equations|
|Class 11||Solution method of variable separation|
|Class 12||Boltzmann-Matano method|
|Class 13||Solution method of Darken's eqiation|
|Class 14||Interfacial migration of diffusional transformations|
|Class 15||Interface migration and precipitation reactions|
(1) Materials Science and Engineering: W. D. Callister, Jr, John Wiley & Sons, Inc.
(2) Phase Transformations in Metals and Alloys: D. A. Porter and K. E. Eastering, Chapman & Hall.
(3) Alloy Phase Equilibria: A. Prince, Elsevier Publishing Company.
(4) Solution examples of materials engineering, Maruzen, (1997), ISBN 4-621-04285-8 C3057.
(5) Diffusion in solids, P.G.Shewmon (eds. by K. Fueki, and K. Kitazawa) , Corona.
(6) Introduction to Physical Metallurgy, S. Koda, Corona.
Evaluate achievement and performance by quiz, intermediate and final examinations
knowledges and skills to solve differential and partial differential equations