corrosion birds' eyes view2014
TRANSCRIPT
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د� د�ي ش� د� أ� ش� د� د�ي ش� د�ي ش� أ� ٱ ش�� أ� ش� ش�ن ش�د� ش��� د�ل ع� د� ش�� ش� ش�
على طائر نظرةوالحماية التآكل هندسة
الشربينى جمال مهندس ددكتوروالحماية التآكل خبيرهندسة
جذورها من والمشاكل اإلنهيارات وتحليل
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Leaking Underground Storage Tank
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Close-Up of Leaking Underground Storage Tank
This is a classic example of normal galvanic corrosion experienced on USTs.
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8سورة النحل
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Above ground storage tanks (AST) where the ambient summer temperatures are ideal for
bacterial colony growth
Microbialogical Corrosion Attack
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30سورة األنبياء
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Microbially-influenced corrosion of metals at sea is a big safety and financial problem caused by the production of damaging substances such as hydrogen sulphide by sulphate-reducing micro-organisms within biofilms on the surfaces.
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There are manifold reasons to avoid corrosion in maritime applications above-sea or sub-sea. Suitable standards to protect parts like boltings and fasteners for many years from corrosion are the cathodic corrosion protection or the use of cost intensive duplex and super duplex steels.
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Steel Life
Cycle
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Why Metals Corrode
Refining-Corrosion Cycle
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Why Metals Corrode
Corrosion Cycle Example
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Basic Interactions that Result in Corrosion
CORROSIVE
ENVIRONMENT MATERIAL OF
CONSTRUCTION
ENGINEERING APPLICATION
CORROSION PROCESS
Aqueous fluids, Sea Water, Acids, Alkalis, Soils
Acidic gases, CO2, H2S
Carbon steel Corrosion resistant alloys
Concrete, Plastics
Stresses applied & residual Heat transfer & Fluid flow
Thermal & Mechanical Cycles
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Crystalline Structure of Perfect Solids
Unit Cells for Body-Centered Cubic, Face-CenteredCubic, and Hexagonal Close-Packed Structures
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Crystalline Structure of Imperfect Solids
Point Defects in a Crystalline Structure
Self-interstitialimpurity atom Matrix atom
Substitutionalimpurity atom
Interstitialimpurity atom
Vacancy(Void)
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Half-Cell Potential Measurement and Cu/CuSO4 Reference Electrode
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Electromotive Force Series
Half-Cell Potential Measurement
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Electromotive Force Series
Electromotive Force Series for Metals
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Measurement of Pipeline Potentials
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Corrosion Cell Between Dissimilar Metals
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20سورة الرحمن
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Corrosion Cell
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http://www.corrosionclinic.com/corrosion_online_lectures/dl.gif
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Corrosion SolutionRemove the Oxygen
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