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Course11310709261 lectures

Welding Metallurgy

Prof. P. K. Jha · IIT Roorkee

Start with lecture 1 At NPTEL

Lectures

Unit 1

  1. Introduction to welding metallurgy Video
  2. Overview of Welding Processes Video
  3. Introduction to phase diagrams Video
  4. Phase diagram of Iron Carbon system Video
  5. Phase diagram of non ferrous metals and alloys Video

Unit 2

  1. Phase Transformations Video
  2. Time Temperature Transformation Diagrams Video
  3. Continuous Cooling Transformation Diagrams Video
  4. Carbon Equivalent, Schaeffler Diagrams Video
  5. Problem solving on Phase Diagrams Video

Unit 3

  1. Introduction to strengthening mechanism in metals Video
  2. Solid solution strengthening and grain refinement Video
  3. Precipitation Hardening and Martensite Strengthening Video
  4. Strain Hardening and Strain Ageing Video
  5. Problem solving on strengthening mechanism in metals Video

Unit 4

  1. Introduction to Heat treatment Processes in Welding Video
  2. Hardening and Hardenability Video
  3. Martempering and Austempering Video
  4. Case Hardening methods Video
  5. Heat treatment of Non-Ferrous metals and alloys Video

Unit 5

  1. Heat Sources in Welding Video
  2. Heat Flow in Welding Video
  3. Temperature Distribution in Welding Video
  4. Effect of Welding Parameters Video
  5. Metallurgical effect of Heat Flow on Welding Video

Unit 6

  1. Principles of Solidification in Welding Video
  2. Solute redistribution during Solidification Video
  3. Constitutional Supercooling Video
  4. Microsegregation and Banding Video
  5. Grain Structure during Solidification in Welding Video

Unit 7

  1. Distinct Zones in Fusion Welded Specimen Video
  2. Heat Affected Zone Video
  3. Properties of Heat Affect Zone Video
  4. Microstructural Products in Weldments Video
  5. Introduction to Preheat and Postweld Heat Treatment Video

Unit 8

  1. Preheat and Postweld Heat Treatment of Different Materials Video
  2. Residual Stresses in Welding Video
  3. Causes of Residual Stress Development in Welding Video
  4. Measurement of Residual Stresses in Weldments Video
  5. Controlling Residual Stresses in Weldments Video

Unit 9

  1. Introduction to Welding Distortion Video
  2. Types of Welding Distortions Video
  3. Angular Distortions in Welds Video
  4. Bowing, Buckling and Twisting in Welds Video
  5. Control of Distortion in Welds Video

Unit 10

  1. Introduction to Cracks in Welds Video
  2. Types of Weld Cracks Video
  3. Specific Weld Cracks Video
  4. Chevron Cracks and Reheat Cracks Video
  5. Lamellar Cracks and Stress Corrosion Cracking Video

Unit 11

  1. Introduction to Weldability of Metals Video
  2. Weldability of Carbon Steels Video
  3. Weldability of Alloy Steels Video
  4. Weldability of Cast Iron Video
  5. Weldability of Non Ferrous Metals and Alloys Video

Unit 12

  1. Introduction to Welding Defects Video
  2. Surface and Subsurface Welding Defects Video
  3. Issues in Welding: Design for Static Loading Video
  4. Considerations for Fatigue Loading in Welding Video
  5. Design Features for Fatigue and Static Loading in Welding Video

Live Session

  1. Live Session 26-09-2019 Video

Syllabus and materials

At NPTEL, as the course publishes them.

Credits and licence

Institution
IIT Roorkee
Department
Metallurgy and Material Science
Teacher
Prof. P. K. Jha
Level
Undergraduate
Language
English
Subjects
Engineering
Source
NPTEL
Licence
CC BY-NC-SA, as NPTEL states it. Non-commercial use only. NPTEL's terms
Attribution
NPTEL states: "Distributed under Creative Commons Attribution-ShareAlike / CC BY - NC - SA", beside a BY-NC-SA badge.
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