Learning Objectives

Students are familiar with macroscopic, mesoscopic and microscopic mechanisms of plastic deformation in metals, alloys and intermetallics including the qualitative and quantitative descriptions. Furthermore, students can apply their knowledge in order to deduce and explain mechanism-property relationships in this kind of materials and their use in materials manufacturing.

Content

Chapter overview

Ch. 0: General Information
Ch. 1: Relevance of Plasticity in Industry and Research
Ch. 2: Macroscopic Features of Plastic Deformation
Ch. 3: Fundamentals and Interrelations to other Lectures

• Fundamental Concepts of Elasticity
• Macroscopic Strength and Strengthening/Hardening
• Fundamentals of Crystallography
• Fundamentals of Defects in Crystalline Solids

Ch. 4: Dislocations

• Fundamental Concept
• Observation of Dislocations
• Properties of Dislocations
• Dislocations in fcc Metals
• Dislocations in bcc Metals
• Dislocations in hcp Metals and Complex Intermetallics

Ch. 5: Single Crystal Plasticity

• General Stages of Plastic Deformation and Fundamentals of the Stress-Strain curve (fcc Metals)
• Influence of Temperature, Orientation, Strain Rate, etc. (fcc Metals)
• Further Examples (Extension of the Results to bcc, hcp and Intermetallic Materials)
• Deformation Twinning

Ch. 6: Plasticity of Polycrystalline Materials

• Transition from Single Crystals to Polycrystals
• Strength of Polycrystals
  • Solute Atoms
  • Dislocations (incl. Dislocation Patterning)
  • Grain Boundaries (incl. Homogenization of Critical Stress)
  • Precipitates and Dispersoids

Ch. 7: Other Mechanisms of Plastic Deformation

Work Load

lectures: 56 h

private studies: 187 h

Powerpoint slides will be distributed via the ILIAS system.

Detailed information are available for different sub topics of the lecture:

P. Hirth, J. Lothe: „Theory of Dislocations“, Krieger (1992)
http://services.bibliothek.kit.edu/primo/start.php?recordid=KITSRC070938105

D. Hull, D. J. Bacon: „Introduction to Dislocations“, Elsevier (2011)
http://services.bibliothek.kit.edu/primo/start.php?recordid=KITSRC383083990 (free vie KIT license)

R. W. Cahn, P. Haasen (Editoren): „Physical Metallurgy“, Serie, North Holland (1996)
http://services.bibliothek.kit.edu/primo/start.php?recordid=KITSRC052463656

J. Freudenberger: „Skript zur Vorlesung Physikalische Werkstoffeigenschaften“, IFW Dresden (2004)
https://www.ifw-dresden.de/de/ifw-institutes/ikm/lectures/vorlesungsskript-physikalische-werkstoffeigenschaften (public domain)

Details about the lecture are distributed via: https://www.iam.kit.edu/wk/english/studies.php