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Corrosive Damage In Metals & Its Prevention

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Prof. T. K. G. Namboodhiri
Prof. T. K. G. Namboodhiri

Corrosion is the degradation of materials due to reaction with the environment. It affects metals, non-metals, and living tissues, causing damage like material loss and increased costs. Proper material selection, design modifications, environmental control, and protective coatings or cathodic protection can prevent a majority of corrosion damage and reduce annual economic losses estimated to be 3-5% of global GDP.

Economy & FinanceTechnology
1 of 35
CORROSIVE DAMAGE IN MATERIALS & ITS PREVENTION Dr. T. K. G. NAMBOODHIRI Professor of Metallurgy (Retired)
INTRODUCTION ,[object Object]
UNIVERSALITY OF CORROSION ,[object Object],[object Object]
CORROSION DAMAGE ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
COST OF CORROSION ,[object Object],[object Object],[object Object],[object Object]
WHY DO METALS CORRODE? ,[object Object],[object Object]
ELECTROCHEMICAL NATURE ,[object Object],[object Object],[object Object]
ELECTROCHEMICAL REACTIONS IN CORROSION
ELECTROCHEMICAL THEORY ,[object Object],[object Object]
PASSIVATION ,[object Object],[object Object]
FORMS OF CORROSION ,[object Object],[object Object],[object Object],CORROSION WET CORROSION DRY CORROSION CORROSION ROOM TEMPERATURE CORROSION HIGH TEMPERATURE CORROSION
WET & DRY CORROSION ,[object Object],[object Object]
WET / AQUEOUS CORROSION ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
UNIFORM CORROSION ,[object Object],[object Object],[object Object]
GALVANIC CORROSION ,[object Object],[object Object]
CREVICE CORROSION ,[object Object],[object Object]
PITTING ,[object Object],[object Object],[object Object],[object Object],[object Object]
DEALLOYING ,[object Object],[object Object]
INTERGRANULAR CORROSION ,[object Object]
VELOCITY ASSISTED CORROSION ,[object Object],[object Object],[object Object],[object Object]
CAVITATION DAMAGE ,[object Object],[object Object]
ENVIRONMENT ASSISTED CRACKING ,[object Object],[object Object],[object Object],[object Object],[object Object]
STRESS CORROSION CRACKING ,[object Object],[object Object],[object Object],[object Object],[object Object]
HYDROGEN EMBRITTLEMENT ,[object Object],[object Object],[object Object]
LIQUID METAL EMBRITTLEMENT ,[object Object],[object Object],[object Object]
CORROSION FATIGUE ,[object Object],[object Object],[object Object]
PREVENTION OF CORROSION ,[object Object],[object Object],[object Object]
METHODS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
MATERIAL SELECTION ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
IMPROVEMENTS OF MATERIALS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
DESIGN OF STRUCTURES ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
ALTERATION OF ENVIRONMENT ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CATHODIC & ANODIC PROTECTION ,[object Object],[object Object],[object Object],[object Object],[object Object]
COATINGS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CONCLUSION ,[object Object],[object Object],[object Object]

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Corrosive Damage In Metals & Its Prevention

  • 1. CORROSIVE DAMAGE IN MATERIALS & ITS PREVENTION Dr. T. K. G. NAMBOODHIRI Professor of Metallurgy (Retired)
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