Weldability of Metals

   

D K Dwivedi obtained BE (mechanical engineering), in 1993 from GEC Rewa, ME (welding engineering) from Univ. of Roorkee in 1997 and PhD in Met. Engineering from MNIT, Jaipur in 2003. He has about 9 years teaching experience at NIT Hamirpur and 14 years at IIT Roorkee in subjects related with manufacturing at UG level and welding engineering related subjects at PG level. He has undertaken work of failure investigation valves, penstocks, bridges for many private and public sector industries especially in hydropower sector. He has published more than 120 research papers in SCI/SCIE indexed journals and undertaken 20 sponsored research and 50 industrial consultancy projects. He has authored two books entitled “Production and Properties of Cast Al-Si Alloys with New Age International, New Delhi (2013) and Surface Engineering with Springer, New Delhi (2018).

COURSE LAYOUT:

Week 1:   1. Understanding Weldability: IntroductionI.
                2. Understanding Weldability: Introduction II,
                3. Metal Properties & Weldability I,
                4. Metal Properties & Weldability II,
                5. Weldability of Work Hardenable Metals

Week 2:  6. Weldability of Work Hardenable & Precipitation Strengthened Metals.
               7. Weldability of Precipitation Strengthened Metals.
               8. Weldability of Metals Strengthened by Grain Refinement, dispersion Hardening and Transformation Hardening.
               9. Weldability of Transformation Hardening Metals.
             10. Weldability of Metals: Combination of Strengthening Mechanisms.

Week 3:  11. Weldability Consideration
               12. Weldability of Carbon and Alloy Steel – I,
               13. Weldability of Carbon and Alloy Steel – II
               14. Weldability of Carbon and Alloy Steel – III
               15. Weldability of Low Carbon Steel and Mild Steel

Week 4:  16. Weldability of Medium Carbon Steel and High Carbon Steel
               17. Weldability of Carbon and Welding Processes- I
               18. Weldability of Carbon and Welding Processes- II
               19. Weldability of Carbon Steel and Welding Processes III
               20. Weldability of Carbon Steel and Radiation Welding and Thermal Cutting.

Week 5  :   21. Weldability of High Strength Low Alloy Steels.
                  22. Weldability of Q & T Steels- I
                  23. Weldability of Q & T Steels- II
                  24. Weldability of Q & T Steel- III
                  25. Weldability of Q & T Steel- IV

Week 6  :   26. Weldability of HTLA Steel- I
                  27. Weldability of HTLA Steel- II
                  28. Weldability of Cr-Mo steel I
                  29. Weldability of Cr-Mo Steel- II
                  30. Weldability of Cr-Mo Steel- III

Week 7 :   31. Weldability of Pre-Coated Steel- I
                 32. Weldability of Pre-Coated Steels- II
                 33. Weldability of Stainless Steel- I
                 34. Weldability of Stainless Steel- II
                 35. Weldability of Martensitic Stainless Steel I

Week 8 : 36. Weldability of Martensitic Stainless Steel- II
               37. Weldability of Ferritic Stainless Steel,
               38. Weldability of Austenitic Stainless Steel -I
               39. Weldability of Austenitic Stainless Steel- II
               40. Weldability of PH Stainless Steel.

SUGGESTED READING MATERIALS:

• Lancaster J F., “Metallurgy of Welding”, Allen & Unwin Co. 2000
• Castro R. and Cadenet J. J. de., “Welding Metallurgy of Stainless and heat-resisting steels”, Cambridge Uni. Press. 1975
• Welding, Brazing and soldering”, Vol. 6, ASM International, ASM, Ohio. 1993
• Kou S., Welding metallurgy, 2nd edition, Wiley Publications 2003
• Hrivnák, I., “Theory of Weldability of Metals and Alloys”, Elsevier Science 1991
• Gene Mathers, “Welding of Aluminium and alloys”, Wood Head Pub. UK. 2002