Welding Metallurgy Training
Gain mastery in welding metallurgy for shafts and flanges. Understand how heat input, microstructure changes, machining practices, and residual stresses cause cracking, and discover prevention strategies using effective procedures, filler selections, preheat, PWHT, and thorough inspections to ensure dependable weld performance in demanding applications.

flexible workload from 4 to 360h
valid certificate in your country
What will I learn?
This practical course provides essential knowledge on welding metallurgy to minimise cracking, manage hardness, and boost reliability. You will explore how thermal cycles affect microstructure, the role of hydrogen and residual stresses in failures, and practical applications of preheat, PWHT, consumable choices, joint designs, machining controls, and testing to avoid defects and prolong component lifespan.
Elevify advantages
Develop skills
- Control weld hardness by adjusting microstructure to avoid cold cracking on shafts.
- Prevent hydrogen cracking through proper preheat management, diffusion control, and low-hydrogen consumables.
- Minimise weld and turning stresses by optimising joint design, toe finishing, and sequencing.
- Conduct weld failure analyses by choosing appropriate tests, mapping hardness, and interpreting fracture surfaces.
- Select suitable weld processes and fillers to match AISI 4140 shafts for optimal strength and toughness.
Suggested summary
Before starting, you can change the chapters and workload. Choose which chapter to start with. Add or remove chapters. Increase or decrease the course workload.What our students say
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