Transcription of CORROSION BASICS
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CORROSION BASICS
CORROSION BASICS (from Swain (1996) and Schultz (1997)) What is CORROSION ? Webster s Dictionary - corrode (v.) To eat away or be eaten away gradually, especially by chemical action. NACE CORROSION BASICS - CORROSION may be defined as the deterioration of a material (usually a metal) because of a reaction with the environment. Why do metals corrode? Most metals are found in nature as ores. The manufacturing process of converting these ores into metals involves the input of energy. During the CORROSION reaction the energy added in manufacturing is released, and the metal is returned to its oxide state.
3. Efficiency Loss 4. Contamination 5. Overdesign . Safety / Loss of Life . Corrosion can lead to catastrophic system failures which endanger human life and health. Examples include a 1967 bridge collapse in West Virginia which killed 46. The collapse was attributed to stress corrosion cracking (SCC). In another example, the fuselage of an ...
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