Material Degradation and Prevention
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Follow on Instagram for UpdatesMaterial Degradation and Prevention Syllabus — Unit-wise Content
The official GTU curriculum for Material Degradation and Prevention (subject code 2162108) as prescribed for Metallurgy · Semester 6 divides the course into 6 units, covering 51 listed topics. The unit-wise breakdown below is read from the GTU syllabus document for this subject code, so you can check what the course actually covers before deciding which papers to attempt.
Download the official syllabus PDF (2162108)Unit 1 Introduction and scope of the subject. Types of processes leading to degradation
- of materials viz
- Creep and Fatigue
- Technological importance of corrosion study
- Corrosion as useful process
- Factors affecting corrosion
- Corrosion rate expressions
- Faradays’ laws of electrolysis
- current density
- Electrochemical principles of corrosion
- Cell analogy
- electrode potential
- Reference electrodes. e.m.f. and galvanic series - their uses in corrosion studies
- Thermodynamics and Kinetics of Electrode Processes- Polarization Curves
- Passivity and Transpassivity
- Nernst’s Equation
- Pourbaix diagram for Metal Water System. 14 23.5
Unit 2 Characteristic features, causes and remedial measures of different forms of
- corrosion: Dry & Wet corrosion
- Selective leaching
- Stress corrosion cracking
- Hydrogen Damage
- Liquid metal attack
- Liquid metal embrittlement
- Chemical degradation of non-metallic materials like rubbers
- ceramics etc
Unit 3 Introduction to high temperature corrosion, Pilling-Bedworth ratio, Oxidation
- Prevention of high temperature corrosion
- high temperature alloy design
- Use of coatings
Unit 4 Corrosion control
- Principles of corrosion prevention
- Material selection
- Design considerations
- Control of environment including Inhibitors and Passivators
- Coatings – metallic
- Electroplating of copper
- Nickel and Chromium
- electroless plating
- Thermal spraying
- Alloy plating
- Cathodic and anodic protection
- Chemical and electrochemical polishing: Phosphating
- Chemical colouring
- Corrosion testing methods
Unit 5 Wear of materials, Analytical methods of wear, Wear resistant materials, Wear
- resistant coatings
- Surface modification to improve wear resistance
Unit 6 Recent trend in surface engineering
- Physical vapour deposition (PVD)
- Ion plating
- Chemical vapour deposition (CVD)
- Use of Laser and plasma in surface engineering
- Surface modification by directed energy beams
- Surface modification by Friction stir processing: Surface composites
- Novelty of surface composition and microstructure
- Specific industrial applications. 14 23.5
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