Lecture 20 of 61Unit 4
Heat treatment of Non-Ferrous metals and alloys
Prof. P. K. Jha · IIT Roorkee
Credits and licence
- From
- Welding Metallurgy, IIT Roorkee (at NPTEL)
- Licence
- CC BY-NC-SA, as NPTEL states it. Non-commercial use only.
- Attribution
- NPTEL states: "Distributed under Creative Commons Attribution-ShareAlike / CC BY - NC - SA", beside a BY-NC-SA badge.
- Who can watch
- Tweens profiles and older. How courses are placed
All the lectures
- Introduction to welding metallurgy
- Overview of Welding Processes
- Introduction to phase diagrams
- Phase diagram of Iron Carbon system
- Phase diagram of non ferrous metals and alloys
- Phase Transformations
- Time Temperature Transformation Diagrams
- Continuous Cooling Transformation Diagrams
- Carbon Equivalent, Schaeffler Diagrams
- Problem solving on Phase Diagrams
- Introduction to strengthening mechanism in metals
- Solid solution strengthening and grain refinement
- Precipitation Hardening and Martensite Strengthening
- Strain Hardening and Strain Ageing
- Problem solving on strengthening mechanism in metals
- Introduction to Heat treatment Processes in Welding
- Hardening and Hardenability
- Martempering and Austempering
- Case Hardening methods
- Heat treatment of Non-Ferrous metals and alloys
- Heat Sources in Welding
- Heat Flow in Welding
- Temperature Distribution in Welding
- Effect of Welding Parameters
- Metallurgical effect of Heat Flow on Welding
- Principles of Solidification in Welding
- Solute redistribution during Solidification
- Constitutional Supercooling
- Microsegregation and Banding
- Grain Structure during Solidification in Welding
- Distinct Zones in Fusion Welded Specimen
- Heat Affected Zone
- Properties of Heat Affect Zone
- Microstructural Products in Weldments
- Introduction to Preheat and Postweld Heat Treatment
- Preheat and Postweld Heat Treatment of Different Materials
- Residual Stresses in Welding
- Causes of Residual Stress Development in Welding
- Measurement of Residual Stresses in Weldments
- Controlling Residual Stresses in Weldments
- Introduction to Welding Distortion
- Types of Welding Distortions
- Angular Distortions in Welds
- Bowing, Buckling and Twisting in Welds
- Control of Distortion in Welds
- Introduction to Cracks in Welds
- Types of Weld Cracks
- Specific Weld Cracks
- Chevron Cracks and Reheat Cracks
- Lamellar Cracks and Stress Corrosion Cracking
- Introduction to Weldability of Metals
- Weldability of Carbon Steels
- Weldability of Alloy Steels
- Weldability of Cast Iron
- Weldability of Non Ferrous Metals and Alloys
- Introduction to Welding Defects
- Surface and Subsurface Welding Defects
- Issues in Welding: Design for Static Loading
- Considerations for Fatigue Loading in Welding
- Design Features for Fatigue and Static Loading in Welding
- Live Session 26-09-2019