Materials Degradation

MATS66631 Materials Degradation 15 Semester 1 Postgraduate Taught Level 6 Dirk Engelberg Unit coordinator Department of Materials 1 FHEQ level (Framework for Higher Education Qualifications) ' Masters/Integrated Masters P4 ' European Credit Transfer & Accumulation System Rating : 7.5 This unit introduces the fundamental science underlying various corrosion phenomena, using both lectures and laboratory sessions. The role of electrochemistry in corrosion is explained and students are shown how the different experimental methods of measuring corrosion rates for metals follow from the kinetic and thermodynamic behaviours expected in different environments. Practical classes introduce students to the standard equipment used for corrosion measurement. High temperature oxidation of materials in gaseous environments is considered from a thermodynamic perspective. This unit introduces the fundamental science underlying various corrosion phenomena, using both lectures and laboratory sessions. The role of electrochemistry in corrosion is explained and students are shown how the different experimental methods of measuring corrosion rates for metals follow from the kinetic and thermodynamic behaviours expected in different environments. Practical classes introduce students to the standard equipment used for corrosion measurement. High temperature oxidation of materials in gaseous environments is considered from a thermodynamic perspective. To introduce the thermodynamic and kinetic principles of the chemical and electrochemical processes that give rise to aqueous corrosion in electrolytes and high temperature oxidation and degradation in gaseous environments. To enable students to understand experimental techniques for measuring and monitoring corrosion rates, and to provide hand-on experience of operating potentiostatic equipment to conduct investigations into corrosion. A greater depth of the learning outcomes will be covered in the following sections:<ul><li>Knowledge and understanding</li><li>Intellectual skills</li><li>Practical skills</li><li>Transferable skills and personal qualities</li></ul> <ol><li>Understand the common mass transport mechanisms in solutions; use Fick's laws to solve diffusion problems.</li><li>Understand the chemistry of typical aqueous solutions in which corrosion could occur, such as salts, acids and alkalis, and be able to describe how the solution chemistry will affect the rate and type of corrosion expected for common metals such as iron, copper and aluminium.</li><li>Discuss how the Tafel Law predicts current density for activation controlled processes.</li><li>Understand the theory and application of corrosion rate measurements and their limitations.</li><li>Recognise when mass transport will limit different interfacial processes and predict the effect on the corrosion potential and corrosion current density.</li><li>Explain the stages of high temperature oxidation and the kinetics for different types of oxides.</li><li>Understand the theory for Electrochemical Impedance Spectroscopy.</li></ol> <ol><li>Explain how to relate corrosion current densities to corrosion rates using Faraday’s Law.</li><li>Interpret a polarisation curve to determine the types of interfacial processes occurring.</li><li>Measure the gradient of the appropriate part of a Linear Polarisation Curve to find the Polarisation Resistance.</li><li>Perform calculation using Fick’s Laws to predict corrosion rates for cases diffusion limited reactions are rate limiting.</li><li>Use a Pourbaix diagram to describe the surface state for a metal in a known solution.</li><li>Measure corrosion rates from the results of impedance measurements.</li></ol> <ol><li>Understand how to perform experiments to measure corrosion rates in aqueous environments.</li><li>Use a potentio-stat correctly with either two or three electrode setups.</li></ol> <ul><li>Gain experience of working in a group to produce coursework.</li><li>To provide hand-on practical experience of working and operating within a team/group.</li></ul> Core materials will be delivered via lectures, laboratory classes, in-class discussion sessions, pre-recorded video segments, and reinforced with online quizzes and other activities. These activities will give continuous formative feedback to help students monitor their progress and understand what the learning outcomes expected for the unit are. Each week the timetable will give guidance on which activities the students should complete to prepare for the lectures and lab classes that will take place, and all teaching sessions will be recorded for revision or for students to catch up if they are unable to attend live sessions for any reason. 0 Other 30% 1 Written exam 70% Feedback given verbally and written. N Students are not required to purchase any textbooks for this module. The following are recommended:Corrosion: aqueous processes and passive films / edited by J.C. Scully. J. C Scully (John Christopher); Herbert Herman; London ; New York : Academic Press 1983 Available at Joule Library Main Level (620.1 TRE)Corrosion of metals: physicochemical principles and current problems / Helmut Kaesche. Helmut Kaesche; Berlin ; London : Springer c2003 Available at Joule Library Main Level (620.182 KAE)Corrosion: for students of science and engineering / Kenneth R. Trethewey, John Chamberlain.Kenneth R. Trethewey (Kenneth Richard), 1950- John Chamberlain 1934- Harlow : Longman Scientific & Technical 1988 Available at Joule Library Main Level (620.182 TRE)Elementary aspects of corrosion / by P. Neufeld (et al.). Peter Neufeld; Redhill 2 Queensway, Redhill, Surrey RH1 1QS : Portcullis Press 1975 Available at Joule Library Upper Level (620.182 NEU)Corrosion and Protection / edited by Einar Bardal. Einar Bardal editor. SpringerLink (Online service); London : Springer London, 2004 Online access available.Corrosion and corrosion control : an introduction to corrosion science and engineering / (by) Herbert H. Uhlig. Herbert H. Uhlig (Herbert Henry), 1907; New York ; Chichester : Wiley 2nd ed. 1971 Available at Joule Library Main Level (620.182 UHL)Basic corrosion and oxidation / John M. West. John M. West (John Michael), 1930; Chichester : Horwood 2nd ed. 1986 Available at Joule Library Main Level (620.182 WES)Corrosion for Everybody / by Alec Groysman. Alec Groysman author. SpringerLink (Online service); Springer eBooks; Dordrecht : Springer Netherlands, 2010 Online access availableAdd to e-Shelf : Corrosion and surface chemistry of metals / Dieter Landolt. Dieter Landolt; Lausanne : EPFL Press c2007; Available from Main Library Blue Area Floor 2 (620.182 LAN)High temperature oxidation and corrosion of metals / by David John Young. D. J. Young (David John); Amsterdam ; Boston ; London : Elsevier 1st ed. 2008 Online access availableFor reference only. <a href="http://man-fe.hosted.exlibrisgroup.com/primo_library/libweb/action/display.do?tabs=viewOnlineTab&ct=display&fn=search&doc=dedupmrg265310&indx=15&recIds=dedupmrg265310&recIdxs=4&elementId=4&renderMode=poppedOut&displayMode=full&frbrVersion=2&userQuery=corrosion&dscnt=0&vl%28121775367UI0%29=any&submit=Search&query=any%2Ccontains%2Ccorrosion&scp.scps=scope%3A%2844MAN%29&tab=library_catalogue&loc=local%2Cscope%3A%2844MAN%29&dstmp=1423055064697&dym=true&highlight=true&search_scope=scope%3A%2844MAN%29&tb=t&displayField=title&bulkSize=10&vl%28freeText0%29=corrosion&vid=MU_VU1&institution=44MAN">Shreir's Corrosion</a> Tony Richardson (Coordinating Editor), Bob Cottis, Rob Lindsay, Stuart Lyon, David Scantlebury, Howard Stott, Mike Graham 4th ed. Elsevier; 2010.For Information and advice on Link2Lists reading list software, see:<a href="http://www.library.manchester.ac.uk/academicsupport/informationandadviceonlink2listsreadinglistsoftware/">http://www.library.manchester.ac.uk/academicsupport/informationandadviceonlink2listsreadinglistsoftware/</a> Lectures 24 Practical classes & workshops 3 Tutorials 5 0 118