Welding Metallurgy

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About Course

The Welding Metallurgy course focuses on understanding the metallurgy and solidification of weldments

The course will present the learners aware of the metallurgical aspects of welding. For preparing a sound weld, the scholars are required to be aware of the science behind the welding phenomena, especially in the field of weld metal solidification, heat transfer, heat treatment processes, strengthening mechanisms, etc.

The course will be useful for engineering graduates as well as professionals working in the area of welding.

What Will You Learn?

  • Week 1: Introduction to welding metallurgy, phase diagrams
  • Week 2: Phase transformation, TTT, and CCT diagrams
  • Week 3: Metal strengthening approaches
  • Week 4: Heat treatment processes for weldments
  • Week 5: Analysis of heat flow and temperature distribution in welding
  • Week 6: Concept of solidification in welding, constitutional supercooling
  • Week 7: Introduction to heat affected zones, Properties of HAZ
  • Week 8: Residual stresses in welding, Preheat and postweld heat treatment
  • Week 9: Types of welding distortion and its control
  • Week 10: Cracks in welds
  • Week 11: Weldability issues in materials
  • Week 12: Welding defects, Design considerations in welding

Course Content

Welding Metallurgy

  • Welding Metallurgy
    00:00
  • Introduction to Welding Distortion
    00:00
  • Types of Welding Distortions
    00:00
  • Angular Distortions in Welds
    00:00
  • Bowing, Buckling and Twisting in Welds
    00:00
  • Control of Distortion in Welds
    00:00
  • Introduction to welding metallurgy
    00:00
  • Overview of Welding Processes
    00:00
  • Introduction to phase diagrams
    00:00
  • Phase diagram of Iron Carbon system
    00:00
  • Phase diagram of non ferrous metals and alloys
    00:00
  • Phase Transformations
    00:00
  • Time Temperature Transformation Diagrams
    00:00
  • Continuous Cooling Transformation Diagrams
    00:00
  • Carbon Equivalent, Schaeffler Diagrams
    00:00
  • Problem solving on Phase Diagrams
    00:00
  • Introduction to strengthening mechanism in metals
    00:00
  • Solid solution strengthening and grain refinement
    00:00
  • Precipitation Hardening and Martensite Strengthening
    00:00
  • Strain Hardening and Strain Ageing
    00:00
  • Problem solving on strengthening mechanism in metals
    00:00
  • Introduction to Heat treatment Processes in Welding
    00:00
  • Hardening and Hardenability
    00:00
  • Martempering and Austempering
    00:00
  • Case Hardening methods
    00:00
  • Heat treatment of Non-Ferrous metals and alloys
    00:00
  • Heat Sources in Welding
    00:00
  • Heat Flow in Welding
    00:00
  • Temperature Distribution in Welding
    00:00
  • Effect of Welding Parameters
    00:00
  • Metallurgical effect of Heat Flow on Welding
    00:00
  • Principles of Solidification in Welding
    00:00
  • Solute redistribution during Solidification
    00:00
  • Constitutional Supercooling
    00:00
  • Microsegregation and Banding
    00:00
  • Distinct Zones in Fusion Welded Specimen
    00:00
  • Heat Affected Zone
    00:00
  • Properties of Heat Affect Zone
    00:00
  • Microstructural Products in Weldments
    00:00
  • Introduction to Preheat and Postweld Heat Treatment
    00:00
  • Preheat and Postweld Heat Treatment of Different Materials
    00:00
  • Residual Stresses in Welding
    00:00
  • Causes of Residual Stress Development in Welding
    00:00
  • Measurement of Residual Stresses in Weldments
    00:00
  • Controlling Residual Stresses in Weldments
    00:00
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