Thermodynamics and Phase Transformations (327-0415-00L)

Objective

This extended 6 CP course consists of a lecture part, a tutorial/assignments part and a practical part. It provides a detailed theoretical and experimental background to phase transformations and the constitution of microstructures. This includes the thermodynamic basis of phase equilibria, properties of surfaces and interfaces, diffusional and difussionless transformations, and the understanding of how through variations of processing a material with specific properties can be tailored.

Content

Lecture (Mo. 2-4 pm)

Topics:

• Phase diagrams
• Thermodynamics
• Solidification
• Defects in solids
• Interfaces and microstructure
• Recovery and recrystallization
• Diffusion
• Diffusional transformations
• Diffusionless transformations

Tutorial/assignments (Mo. 4-6 pm):

• Approximately eight assignments to be solved by the students at home
• Subsequent detailed discussion of the assignments
  
• Teaching of modeling tools to simulate material properties
• Application of the lecture subject via calculations and modeling

Practical part (Tu. 2-6 pm):

Experimental part:

• Alloy production and processing
• Sample preparation for various microscopy techniques
• Optical microscopy
• Microhardness and mechanical properties
• Scanning and transmission electron microscopy
• Atom probe tomography
• Oral presentations and paper writing

Modeling part:

• Introduction to python
• (Kinetic) Monte Carlo of 2D binary alloys
• Simulations of dislocations moving through a 2D pinning field
• 1D dislocation dynamics
• Solving of ordinary and partial differential equations with respect to diffusion

Hours of Lecture, Exercise and Credit Points

• 6 CPs (2 V, 2 U, 2 P)
• Takes place in Spring Semester
  Mondays, 2 – 6 pm, HCI H 2.1
  Tuesdays, 2 – 6 pm, HPT C 103 & Labs of LMPT
  

Lecturers

J. F. Löffler, R. Schäublin, P. Derlet

Recommended Literature

D. A. Porter, K. E. Easterling, M. Y. Sherif
Phase Transformations in Metals and Alloys - Third Edition
CRC Press, Taylor & Francis Group
ISBN: 978-1-4200-6210-6