Advanced Corrosion Science (M10/M11)5 ECTS
(englische Bezeichnung: Advanced Corrosion Science)
(Prüfungsordnungsmodul: Advanced Corrosion Science)

Lehrveranstaltungen:

• • Advanced Corrosion Science
    (Vorlesung, 2 SWS, Michael Strebl et al., Di, 8:30 - 10:00, 0.85; Terminvereinbarung in Vorbesprechung Master LKO WS 2021/22; Vorbesprechung: 19.10.2021, 9:00 - 10:00 Uhr, Zoom-Meeting)
  • Advanced Corrosion Science (Praktikum)
    (Praktikum, 2 SWS, Anwesenheitspflicht, Michael Strebl, Mi; nach Vereinbarung (StudOn Kurs); Vorbesprechung: 19.10.2021, 9:00 - 10:00 Uhr, Zoom-Meeting)

Empfohlene Voraussetzungen:

It is recommended to hear the lecture “Korrosion und Oberflächentechnik” (Bachelor program materials science and engineering, 5th Semester) for the participation in this module.

Inhalt:

Recap of fundamental background in electrochemistry and corrosion

Introduction to advanced methods in corrosion science:
• Electrochemical methods (Polarization curve, EIS, EC noise)
• Local techniques (SVET, SKP, SIET, LEIS)
• Non electrochemical techniques: Respirometry, mass loss, solution analysis, resitance method
• Surface analysis (SEM, TEM, EDX, XPS, Auger, ToF SIMS, GDOES, atom probe analysis)

Discussion of current issues in corrosion science:
• Biodegradable metals
• Passive films und localized corrosion
• Atmospheric corrosion
• Corrosion in nuclear waste repositories
• Corrosion of advanced materials: AM, BMG, high entropy alloys und ultrafine-grained materials
• Drinking water corrosion, microbially induced corrosion, cathodic protection
• Inhibitors und smart coatings
• Mg und Al corrosion
• Corrosion Modelling, DFT
• (Corrosion in) Electrochemical energy storage and conversion

Corrosion failure case studies and analysis: Discussion of the conditions and mechanisms that led to corrosion failure based on observations and experimental evidence and derivation of a solution to the problem.

Lernziele und Kompetenzen:

The students are able to:

• Identify, distinguish, and explain corrosion mechanism and different forms of corrosion.
  

• Illustrate and explain electrochemical, local, non-electrochemical and surface analysis methods that are used in corrosion science.
  

• Interpret results of the characterisation methods described above
  

• Explain the different concepts of smart coatings and self-healing coatings including triggers and release mechanisms of inhibitors.
  

• Present the details that play a role atmospheric corrosion processes like salts, relative humidity, electrolyte film thickness, time of wetness, influence of gases, wet dry cycling and corrosion product formation.
  

• Explain different test methods for atmospheric corrosion, like lab exposure, accelerated corrosion tests and field exposure tests.
  

• Discuss special features in the corrosion mechanisms of Mg and Al alloys (anomalous H2 evolution).
  

• Review different mechanisms of localized corrosion and explain the significance of pit initiation and pit growth, critical pitting potential, critical pitting temperature and repassivation in localized corrosion.
  

• Explain cathodic and anodic paint disbonding or delamination and how it can be studied using SKP.
  

• Assess findings of scientific investigations of corrosion failure, determine corrosion mechanisms that lead to the corrosion issue and develop a concept for solving the corrosion problem.
  

• Explain mechanisms of different types of corrosion inhibitors.
  

• Summarize corrosion properties of advanced materials like high entropy alloys, bulk metallic glasses, additive manufactured materials or ultrafine-grained materials.
  

• Describe corrosion related aspects of nuclear waste storage and the influence of radiation on corrosion.
  

• Compare different types of metals in their applicability as a biodegradable metal and explain surface treatments to control the degradation behavior.
  

• Understand the complexity of simulated body fluids and possible discrepancy between in vitro and in vivo experiments.
  

• Describe mechanisms of microbially induced corrosion, dezincification.
  

• Explain cathodic protection strategies by sacrificial anodes and impressed current cathodic protection.

Literatur:

Recommended literature will be provided during the course of the lecture.

Verwendbarkeit des Moduls / Einpassung in den Musterstudienplan:

1. Energietechnik (Master of Science)
   (Po-Vers. 2018w | TechFak | Energietechnik (Master of Science) | Gesamtkonto | Studienrichtung Materialwissenschaften und Werkstofftechnik | Modulgruppe Materialwissenschaften und Werkstofftechnik (MWT) | Wahlpflichtmodul Materialwissenschaften und Werkstofftechnik (MWT3) | Advanced Corrosion Science)

Studien-/Prüfungsleistungen:

Advanced Corrosion Science

Prüfungsleistung, schriftlich, Dauer (in Minuten): 45, benotet, 5 ECTS

Anteil an der Berechnung der Modulnote: 100.0 %

weitere Erläuterungen:
Die Prüfung wird alternativ als schriftliche elektronische Prüfung durchgeführt.

Prüfungssprache: Englisch

Erstablegung: WS 2021/2022, 1. Wdh.: WS 2022/2023

1. Prüfer:

Sannakaisa Virtanen