PPT-1 Intergranular Corrosion

2 INTERGRANULAR CORROSION INTERGRANULAR ATTACK IGA Metals are usually polycrystalline an assemblage of singlecrystal grains separated by grain boundaries Grain boundary in a polycrystalline metal twodimensional representation . It is intended to give an introduction to corrosion and its control in nontechnical terms More technical information is available on other areas of the NPL NCS website Bill Nimmo and Gareth Hinds NPL February 2003 brPage 2br Beginners Guide to Corro The most common example of corrosion is the formation of rust on steel Most corrosion phenomena are of electrochemical nature and consist of at least two reactions on the surface of the corroding metal One of the reactions is the oxidation eg dissol http://www.trekearth.com/gallery/Central_America/Cuba/East/Guantanamo/Baracoa/photo1001204.htm. Group 16. Aaron Salazar. Phillip Schneider. Kevin Stacy. Geoffrey . Thiel. Sections 16.2 – 16.6. Electrochemistry. 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. . → . (. TKK-2289. ). 15/16 Semester . genap. Instructor: Rama Oktavian; . Vivi. . Nurhadianty. .. Email: rama.oktavian86@gmail.com. Office Hr.:. . T. 11-12. , Th. . 08. -10; 13-15, F. 08-10; 13-15. Corrosion types. (. TKK-2289. ). 15/16 Semester . genap. Instructor: Rama Oktavian; . Vivi. . Nurhadianty. .. Email: rama.oktavian86@gmail.com. Office Hr.:. . T. 11-12. , Th. . 08. -10; 13-15, F. 08-10; 13-15. Corrosion types. Interim Report. March 3, 2017. Kurtis Gurley, PhD, . Professor . of Civil Engineering. Engineering School of Sustainable Infrastructure & Environment. University of Florida. 2015 – 2016 Work. Goals:. . (“Flow-Assisted”. . or “Flow-Accelerated”. . Corrosion). An increase in corrosion brought about by a high relative velocity between the corrosive environment and the surface.. Removal of the metal may be:. Department of Chemical Engineering. University of Engineering and Technology Lahore. Wear Types. Corrosion. Corrosion is the disintegration of a material into its constituent atoms due to chemical reactions with its surroundings. PRESENTATION. ON 01 – 02 JUN 2017. .. PRESENTED BY. :. AFRISUN COATING ENTERPRISES (PTY) LTD. PRESENTER: DANIEL VAN DER WESTHUIZEN . PRESENTATION 02: . BARRIERS vs. SEALS. PROTECTIVE. COATINGS . 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. 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. Materials Engineering . Dr. . Lubna. . Ghalib. Definition:. Destruction or deterioration of . a material . due to their reaction . or chemical attack by its environment. . Materials may be metals & alloys or non-metals like ceramics, plastics, rubber. . . . Muhamed. . Musthafa. . Pulikkal. . M. .Tech (NDT). Roll no.-213118015.