Study of material properties, phase transformations, and heat-affected zones in ferrous metals.
About this course
WELD 1820 Welding Metallurgy Basics gives you the science behind the weld. You will study material properties, phase transformations, and heat-affected zones in ferrous metals. The course focuses on how heat and chemistry change the structure of steel during the welding process.
You will learn why metals behave differently when they are heated and cooled. You will look at how to control these changes to make strong, reliable joints. This course is essential for understanding why certain welding procedures work and others fail.
Who takes this course
WELD 1820 is a required course for students in the Welding & Fabrication Technician program. It is also a useful elective for students in the Electrical & Mechanical Trades department.
Credits: 1.5 · Hours: 45
Prerequisites
None
Learning outcomes
- Identify the microstructure of common ferrous metals used in industrial fabrication.
- Explain how heat input changes the grain structure of weld metals.
- Map the heat-affected zone (HAZ) and describe its mechanical properties.
- Predict cracking risks based on the carbon equivalent of a base material.
- Select appropriate preheat and interpass temperatures for different steel grades.
Evaluation
| Component | Weight (%) |
| Microstructure lab reports | 25 |
| Mid-term examination | 30 |
| Final examination | 45 |