PPT-A BRIEF INTRODUCTION TO IRON AND STEEL, TESTING, FERROUS CORROSION AND CATHODIC PROTECTION

by Alan Broomfield MIIMS FERROUS AND FERRIC METALS IN ORDER TO UNDERSTAND CORROSION IT IS NECESSARY TO KNOW SOMETHING OF THE METALS WITH WHICH SHIPS AND BOATS ARE CONSTRUCTED IN THE MARINE WORLD THERE ARE FOUR MAIN FERROUS METALS IN COMMON USE . by. Alan Broomfield M.I.I.M.S.. FERROUS AND FERRIC METALS. IN ORDER TO UNDERSTAND CORROSION IT IS NECESSARY TO KNOW SOMETHING OF THE METALS WITH WHICH SHIPS AND BOATS ARE CONSTRUCTED.. IN THE MARINE WORLD THERE ARE FOUR MAIN FERROUS METALS IN COMMON USE: -. Dr. Zamanzadeh (Zee). Geoff Rhodes. Matco Services, Inc.. October 8. th. , 2009. Outline. 1: Introduction. 2: Soil Characteristics. 3: Soil Corrosivity. 4: Parameters effect soil corrosivity. 5: Soil corrosion rate. OF . CORROSION. The huge annual loss due to corrosion is a national waste and should be minimized. Materials already exist which, if properly used, can eliminate 80 % of corrosion loss. Proper understanding of the basics of corrosion and incorporation in the initial design of metallic structures is essential. Corrosion. Corrosion-An . oxidization. of a metal, and the oxide flaking off.. Oxidized metal is commonly called rust. Most commonly oxygen will oxidize a metal.. Either by . [Metal] + O. 2. . → . METALS. Types. Ferrous metals. Non-Ferrous metals: Wherein iron is not the main constituent (Copper, Aluminum, Zinc and lead etc). Ferrous metals. :. iron is the main constituent (Cast iron, wrought iron & different forms of steels). Design and Manufacture. . Alloys. Typical Alloys. Brass ( Copper & Zinc). Steel (Iron & Carbon). Cast Iron (Iron & Carbon). Duralium. (Aluminium & Copper). Bronze (Copper, Tin, Phosphorus). 2. INTERGRANULAR CORROSION. (INTERGRANULAR ATTACK.. . IGA. ). Metals are usually “polycrystalline” . . . an assemblage of single-crystal grains separated by grain boundaries.. Grain boundary in a polycrystalline metal (two-dimensional representation). . Thomas B. Williams, Jr.. New England CP, Inc.. tom@newenglandcpinc.com. Acknowledgement. Much of this PowerPoint was created by Kevin Garrity who taught this class for many years.. Introduction. The pipe-to-soil potential measurement is the most important measurement we make.. Presented by Tom McKigney. Brance-Krachy Co., Inc.. Houston Texas. . to The Society of Broadcast Engineers. September 10, 2002. THE CORROSION CELL. When two dissimilar metals are connected in an electrolyte such as soil, a corrosion cell is formed. One metal becomes the anode and suffers corrosion while other metal becomes the cathode and corrosion is prevented. . oxidization. of a metal, and the oxide flaking off.. Oxidized metal is commonly called rust. Most commonly oxygen will oxidize a metal.. Either by . [Metal] O. 2. . → . [Metal]O . Or . [Metal] H. th. Class. Anemias and blood disorders. Prepared by:. Assistant lecturer /. Zahraa. Abdul- Ghani. Assistant lecturer/. Lubab. Tarek . Nafea. Lecture Outlines. ORAL IRON. :- Ferrous fumarate, ferrous gluconate, ferrous . physical, chemical and environmental. properties.. In essence, steel is composed of iron and carbon, although it is the amount of carbon, as well as the level of impurities and additional alloying elements that determines the properties of each steel . Lyndon Opdyke Chief Corrosion Technician. Alliant Energy Corporation. Topics of Discussion. Equipment and Technology . Improvements to Monitoring and Testing Equipment.. Stray Current Corrosion Types and Case . At Adeetya's Kitchen & Furniture is a Pune manufacturer specializing in producing Modular Home & Kitchen Furniture https://adeetyas.com/home-and-kitchen-furniture-manufacturers-in-pune.php