NACE Chapter 2 Corrosion Questions & Answers 100% Correct

Define Corrosion - ANSWER-The deterioration of a substance, usually a metal from a reaction with its environment. What is Passivation? - ANSWER-A layer of oxides formed on the surface of a metal that provides corrosion protection. Stainless Steel for example. What are the elements of a corrosion cell? - ANSWER-Anode Cathode Metallic Pathway Electrolyte Describe what happens at the anode - ANSWER-The metal dissolves into the electrolyte What is the function of the Electrolyte? - ANSWER-Allows the passage of ions to connect the corrosion cell. What is the function of the Metallic Pathway? - ANSWER-Allows the flow of electrons to connect the corrosion cell What is the galvanic series? - ANSWER-A listing of metals in order of reactivity (more or less noble) in seawater at 25 degrees C.