Course Information

Course Outcomes

At the end of this course, the student should be able to:

  1. Explain modern steel manufacturing technologies and the metallurgic principles behind most strengthening mechanisms used, with emphasis on modern AHSS and HPS steels.
  2. Evaluate the effects of weld thermal cycles and steel-based metal/filler metal compositions on the resulting fusion and heat affected zone properties.
    • Apply hardenability (carbon equivalent type) predictive equations to find minimum preheat and interpass temperatures to avoid hydrogen induced cracking.
    • Apply solidification cracking predictions to optimize filler metal composition, dilution and heat input and avoid cracking.
    • Apply reheat cracking susceptibility, use predictive equations and simulate weld testing to avoid it.
  3. Differentiate between and understand the relationship with service-induced fatigue and corrosion-fatigue cracking mechanisms from the above three manufacturing cracking.
  4. Recognize Fitness for Purpose (FFP) design and service performance concepts and the relationship between metallurgic (pre-existing) cracks on long-term fatigue and brittle failure -- as opposed to plastic collapse and Safety Factor classical concepts.
  5. Assess the applicability and limitations of steel welding codes such as AWS D1.1, D1.5, API 5L, and ASTM Section IX.
  6. Perform metallography, optic and electron microscopy.


  1. Callister, W.D., "Material Science and Engineering, an Introduction", 8th Edition, ISBN 978-0-470-41997-7
  2. Kou, Sindou, "Welding Metallurgy", 2nd Edition, ISBN 0-471-84090-4
  3. Barsom, Roulfe, "Failure and Fracture in Steel Structures", ISBN 0-13-329863-9