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Plasticity in metals and intermetallics

Plasticity in metals and intermetallics
type: Vorlesung (V) links:
semester: WS 19/20
time:

The appointments are announced via ILIAS. Access details to the ILIAS folder are provided in the first lectures.

lecturer: Dr.-Ing. Alexander Kauffmann
sws: 3
lv-no.: 2173648
Notes

The students know the macroscopic, mesoscopic and microscopic fundamentals of plasticity in metals and alloys including their qualitative and quantitative description. Furthermore, the students are able to assess the influence of these mechanisms on the respective properties of materials. The students can describe the control of the mechanisms and properties.

topics:

(i) relevance of plasticity in metals and intermetallics

(ii) macroscopic features of plasticity

(iii) repetition of fundamentals for the lecture
- elasticity
- strength and hardening
- crystallography
- defects in solids

(iv) dislocations:
- fundamental concept
- observation of dislocations
- properties of dislocations
- dislocations in fcc metals
- dislocations in bcc metals
- dislocations in hcp metals and complex intermetallics

(v) single crystal plasticity
- influence of temperature, orientation, strain rate, etc. (fcc metals)
- further examples

(vi) strength of crystalline materials
- temperature dependence
- Peierls stress
- impact of solute atoms
- impact of grain boundaries
- impact of precipitates and dispersoids

(vii) other mechanisms of plasticity
- deformation twinning
- martensitic transformation
- grain boundary sliding

(viii) summary

learning objectives:
The students know the macroscopic, mesoscopic and microscopic fundamentals of plasticity in metals and alloys including their qualitative and quantitative description. Furthermore, the students are able to assess the influence of these mechanisms on the respective properties of materials. The students can describe the control of the mechanisms and properties.
requirements:
Materials Science and Engineering I/II, Materials Physics/Metals
workload:

lecture: 42 h
private studies: 78 h

Prerequisites

Materials Science and Engineering I/II, Materials Physics/Metals

Description

The students know the macroscopic, mesoscopic and microscopic fundamentals of plasticity in metals and alloys including their qualitative and quantitative description. Furthermore, the students are able to assess the influence of these mechanisms on the respective properties of materials. The students can describe the control of the mechanisms and properties.

Bibliography

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

Hull, D. J. Bacon: „Introduction to Dislocations“, Elsevier (2011)
http://services.bibliothek.kit.edu/primo/start.php?recordid=KITSRC383083990 (Kapitel frei zugänglich über KIT-Lizenz abrufbar)

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

Freudenberger: „Skript zur Vorlesung Physikalische Werkstoffeigenschaften“, IFW Dresden (2004)
https://www.ifw-dresden.de/institutes/imw/events/lectures/lecture-notes/physikalische-werkstoffeigenschaften/

Content of teaching

(i) relevance of plasticity in metals and intermetallics

(ii) macroscopic features of plasticity

(iii) repetition of fundamentals for the lecture
- elasticity
- strength and hardening
- crystallography
- defects in solids

(iv) dislocations:
- fundamental concept
- observation of dislocations
- properties of dislocations
- dislocations in fcc metals
- dislocations in bcc metals
- dislocations in hcp metals and complex intermetallics

(v) single crystal plasticity
- influence of temperature, orientation, strain rate, etc. (fcc metals)
- further examples

(vi) strength of crystalline materials
- temperature dependence
- Peierls stress
- impact of solute atoms
- impact of grain boundaries
- impact of precipitates and dispersoids

(vii) other mechanisms of plasticity
- deformation twinning
- martensitic transformation
- grain boundary sliding

(viii) summary

Shortdescription

The lecture addresses features and properties of plasticity in metals, alloys and intermetallic materials at macroscopic, mesoscopic and in particular microscopic scale.

Workload

lecture: 42 h
private studies: 78 h

Target audience

students in "mechanical engineering" and "materialscience and engineering"

Aim

The students know the macroscopic, mesoscopic and microscopic fundamentals of plasticity in metals and alloys including their qualitative and quantitative description. Furthermore, the students are able to assess the influence of these mechanisms on the respective properties of materials. The students can describe the control of the mechanisms and properties.