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Indian Institute of Technology Roorkee

Welding Metallurgy

Indian Institute of Technology Roorkee and NPTEL via Swayam


The course focuses on understanding the metallurgy and solidification of weldments The course will make the students aware with the metallurgical aspects of welding. For getting a sound weld, the students are required to be aware of the science behind the welding phenomena, especially in the domain 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.
PREREQUISITES: Introduction to courses such as Welding processes, Materials science etc.INDUSTRY SUPPORT:Manufacturing Industries like SAIL, BHEL etc



Week 1: Introduction to welding metallurgy, phase diagramsWeek 2: Phase transformation, TTT and CCT diagramsWeek 3: Metal strengthening approachesWeek 4: Heat treatment processes for weldmentsWeek 5: Analysis of heat flow and temperature distribution in weldingWeek 6: Concept of solidification in welding, constitutional supercoolingWeek 7: Introduction to heat affected zones, Properties of HAZ Week 8: Residual stresses in welding, Preheat and postweld heat treatmentWeek 9: Types of welding distortion and its controlWeek 10: Cracks in weldsWeek 11: Weldability issues in materialsWeek 12: Welding defects, Design considerations in welding

Taught by

Prof. Pradeep K. Jha

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