636-0406/02 – Basis of Metals Corrosion (ZKK)

Gurantor departmentDepartment of Material EngineeringCredits6
Subject guarantordoc. Ing. Stanislav Lasek, Ph.D.Subject version guarantordoc. Ing. Stanislav Lasek, Ph.D.
Study levelundergraduate or graduateRequirementCompulsory
Year3Semesterwinter
Study languageCzech
Year of introduction2012/2013Year of cancellation
Intended for the facultiesFMTIntended for study typesBachelor
Instruction secured by
LoginNameTuitorTeacher giving lectures
KRA58 Ing. Martin Kraus, Ph.D.
LAS40 doc. Ing. Stanislav Lasek, Ph.D.
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Credit and Examination 3+3
Combined Credit and Examination 12+6

Subject aims expressed by acquired skills and competences

The students gain the basic knowledge of corrosion of metals and alloys. They will understand economical aspects of corrossion, they can describe the main relation among composition, structure and corrosion properties of metals.They can clarify the main corrosion types and corrosion protection methods. They will realised some simple laboratory corrosion tests. The knowledges will be appied in the related and/or following subjects in technical service.

Teaching methods

Lectures
Tutorials
Experimental work in labs

Summary

This subject contains study and evaluation of corrosion properties of metal materials and products, including their corrosion protection. In this subject are lectured and trained the basic knowledge of electrochemical corrosion - the conditions, reactions and main types of corrosion. The lectures contain: the information on economical loses and ecological problems of metal corrosion, determination and calculation of corrosion rates, galvanic metal layers, thermodynamics and kinetics of chemical corrosion at elevated temperatures, localized corrosion types (pitting, crevice, intergranular corrosion, stress corrosion cracking and corrosion fatigue). The corrosion protection methods are introduced: material design, coatings and layers, solution treatment, cathodic protection and convenient construction design. The subject also includes the standard exposition and electrochemical corrosion tests of metals and coating, as well as testing and monitoring of metallic materials in the service and/or natural conditions, especially in atmospheric environment. Examples of corrosion failure cases in service are completed, including their and analysis and solutions.

Compulsory literature:

[1] Groysman A.: Corrosion for Everybody. Springer, 2010, 368 p. [2] Marcus P., Oudar J.: Corrosion mechanisms in theory and practice.M Dekker, New York,1995, 641 p. [3] www.corrosion.com

Recommended literature:

[1] Uhlig H., Rewie W.: Corrosion and Corrosion Control, J.Wiley Sons, New York, 1984, 441 p. [2] Parkins, R. N.: Corrosion Processes. Applied Science Publishers Ltd. Barking, Essex, 1982, [3] Lacombe P. et. al.: Stainless steels. Les Editions de Physique, Les Ulis, 1993, 998 p.

Way of continuous check of knowledge in the course of semester

E-learning

Další požadavky na studenta

Prerequisities

Subject has no prerequisities.

Co-requisities

Subject has no co-requisities.

Subject syllabus:

Lectures: - The basic terms and definitions, corrosion types, illustrations. The significance of corrosion study from the point of economical losses and costs of corrosion protection. - Electrochemical corrosion - electrode potentials, standard potentials of metals, active, passive and immune state, diagrams E-pH (Pourbaixe), galvanic and corrosion cells - Anodic and cathodic processes, partial and summary (total) electrochemical reactions couplet reactions; exchange currents and equilibrium potential, corrosion current and potential, Faradays´ laws, corrosion rates. - Atmospheric corrosion of metals, influence of humidity and impurities, degrees of corrosion (corrosivity). Testing methods. - Corrosion in waters, gaseous corrosion, influence of environment composition, microbial corrosion, stray-current corrosion. - Localized and selective types of corrosion: pitting, crevice and intergranular corrosion. - Influence of mechanical stresses, stress corrosion cracking, corrosion fatigue, fretting, tribo-corrosion. - Potentiostatic and potentiodynamic polarization methods of corrosion testing. - Chemical corrosion – thermodynamics, reactions, and kinetics of corrosion processes. The basic types of corrosion in oxidizing and reducing gases. Heat resistant steels and alloys. - Corrosion protection: design of material, treatment of environment, inhibitors, cathodic protection, structural solutions. - Surface treatment – chemical and galvanic coatings, passive and conversion layers, paints, polymers and rubbers; temporary protection, enamels and ceramic coatings. Exercises: - Introduction to subject, program, literature, reports, safety at work, - electrode potentials, evaluation of water environments according to pH, diagrams E-pH (Pourbaixe), calculations, - Electrochemical corrosion – application of Faradays´ laws, basic calculations. - Determination of corrosion rate (Zn) from released hydrogen at corrosion. - Metallic protective coatings, their testing and properties, nickel plating. - Atmospheric corrosion tests – accelerated laboratory tests in cabinets. - Influence of environment on corrosion resistance of material, assessment of corrosion effectiveness of inhibitors. - Testing of intergranular, pitting and crevice corrosion, stress corrosion cracking - Films and videos on metallic materials corrosion. - Presentation of reports, using the information of metal corrosion. - Credit for education, point classification.

Conditions for subject completion

Combined form (validity from: 2012/2013 Winter semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of points
Exercises evaluation and Examination Credit and Examination 100 (100) 51
        Exercises evaluation Credit 35  21
        Examination Examination 65  30
Mandatory attendence parzicipation:

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Occurrence in study plans

Academic yearProgrammeField of studySpec.FormStudy language Tut. centreYearWSType of duty
2016/2017 (B3923) Materials Engineering (3911R030) Engineering Materials K Czech Ostrava 3 Compulsory study plan
2015/2016 (B3923) Materials Engineering (3911R030) Engineering Materials P Czech Ostrava 3 Compulsory study plan
2015/2016 (B3923) Materials Engineering (3911R030) Engineering Materials K Czech Ostrava 3 Compulsory study plan
2014/2015 (B3923) Materials Engineering (3911R030) Engineering Materials P Czech Ostrava 3 Compulsory study plan
2014/2015 (B3923) Materials Engineering (3911R030) Engineering Materials K Czech Ostrava 3 Compulsory study plan
2013/2014 (B3923) Materials Engineering (3911R030) Engineering Materials P Czech Ostrava 3 Compulsory study plan
2013/2014 (B3923) Materials Engineering (3911R030) Engineering Materials K Czech Ostrava 3 Compulsory study plan
2012/2013 (B3923) Materials Engineering (3911R030) Engineering Materials K Czech Ostrava 3 Compulsory study plan
2012/2013 (B3923) Materials Engineering (3911R030) Engineering Materials P Czech Ostrava 3 Compulsory study plan

Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner