The aim of the course is  to introduce the student to the basic casting and welding techniques. The student should understand the basic principles for the design of cast engineering components and to prescribe the suitable welding method for metallic constructions. He should become able to perform calculations concerning the strength of weldments, the residual stresses and distortion of welded structures. 

• Introduction to welding
• Welding techniques (SMAW, GMAW-MIG, GTAW-TIG, SAW)
•  Heat transfer during welding (Temperature distributions, cooling rate)
• Residual stresses in welding
• Distortion of welded structures
• The weld metal (solidification, problems related to the weld metal)
• The heat-affected zone (HAZ) – Problems in the HAZ: Cold cracking, sensitization
• Weld defects- Quality control of weldments and non-destructive testing
• Mechanical behavior of weldments: fracture and fatigue of welded structures

• G.N. Haidemenopoulos, Introduction to Welding, Tziolas Publishing, 2023.
• R.W. Messler, Principles of Welding, Wiley VCH, 2004
• S. Kou, Welding Metallurgy (2nd edition), Wiley, 2003
• Κ. Masubuchi, Analysis of Welded Structures, Pergamon Press, 1980
• ASM Metals Handbook, Vol.6, Welding, Soldering and Brazing, ASM, USA, 9th edition, 1992.
  • D. Brandon and W. Kaplan, Joining Processes, An Introduction, Wiley, 1997.
  • J.F. Lancaster, Metallurgy of Welding, Chapman & Hall, 1993.

ΜΥ0700 PHYSICAL METALLURGY

Greek

Lectures, Practical Exercises

Homework, lab project, individual project, mid-term exam, final exam. The mid-term and final exams are closed-book exams and include theoretical questions and problem solving.