i Introduction - High Temperature Oxidation of Metals

advertisement
MSE 6406: Corrosion of Materials
Instructors: Ken Sandhage, Preet M. Singh
Course Credits: 4
Course Objectives: To introduce students to the basic kinetic mechanisms associated
with the interactions of materials with liquids and gases.
Prerequisites: MSE 3000 (Chemical Thermodynamics of Materials) or equivalent, and
MSE 3002 (Structural Transformations of Metals, Ceramics, and
Polymers) or equivalent
Textbook:
List of required reading material for this course will be provided
separately for each section. Relevant information will also be posted on
the web-site for this course
Grading:
There will be two exams covering the two main sections of this course
separately. A curve will be used to determine the final grade based on the
performance in exams and other assignments.
Class Schedule: Four hours per week (Tuesday, Thursday Lectures)
Grades
33% - 1st Exam – Aqueous Corrosion of Metals
33% - 2nd Exam – High Temperature Corrosion
33% - 8 quizzes (4 from each section, but the lowest quiz grade from each
section will be dropped in final calculations).
Course Outline:
1.
Aqueous Corrosion of Metals
i
Reactivity in Aqueous Environments
Introduction to electrochemical processes
Electrochemical nature of corrosion
Thermodynamics:
Reversible electrode potentials
Electromotive Force Series
Pourbaix Diagrams
Kinetics:
The laws of electrolysis
ii
Double Layer, Exchange Current,
Corrosion Current, Polarization
Mixed Potential Theory
Passivity
Measurement Techniques
DC Polarization Methods
iii
iv
2.
Electrochemical Noise
AC Impedance Method
Types of Corrosion
Galvanic Corrosion, Pitting, Crevice Corrosion,
Dealloying, Environment Induced Cracking
Other Related Applications:
Metal Extraction Processes
Electroplating, Electropolishing and Electromaching
Primary and secondary batteries
Fuel cells
High Temperature Corrosion of Materials
i
ii
iii
iv
v
vi
Introduction - High Temperature Oxidation of Metals
Thermodynamics of Oxidation
Point Defect Equilibria
Measurements of Kinetics/Oxidation Rate Laws
External Oxidation of Metals and Alloys
Parabolic Scaling of Pure Metals
Short Circuit Diffusion through Scales
Oxidation of Oxygen Soluble Metals
Oxidation with Multiple Oxide Scales
Phase Boundary Controlled Oxidation
Stability of Planar Interfaces and Displacement Reactions
Selective Planar Oxidation of Metal Alloys
Internal Oxidation of Metal Alloys
Congruent/Direct Dissolution of Metals and Ceramics
Molecular Diffusion Dissolution
Free Convection Dissolution
Forced Convection Dissolution
Incongruent/Indirect Dissolution of Metals and Ceramics
Schedule:
Weeks
1 to 7.5
Dates
TBD
7.5 to 15
TBD
Topics Covered
Aqueous Corrosion of Metals
1st Exam (Aqueous Corrosion of Metals)
High Temperature Corrosion of Materials
2nd Exam (High Temperature Corrosion of Materials)
Download