WT 116 - Introduction to Welding Metallurgy

Credits: 5
Variable Credit Course: No

Lecture Hours: 55
Lab Hours: 0
Worksite/Clinical Hours: 0
Other Hours (LIA/Internships): 0

Course Description: Metallurgical theory as it applies to the welding of ferrous and nonferrous metals. Covers properties of metals, melting and solidification, phase changes, weld bead chemistry, and heat affected zones. Effects of alloying elements and heat treatments will be investigated along with welding-induced distortion and methods for distortion control.

Prerequisite: WT 112 and WT 221 with a D or higher; and WMATH 100 with a D or higher or concurrent enrollment.
General Education Requirements:

Fulfills Think General Education Requirement

Meets FQE Requirement: No
Integrative Experience Requirement: No

Student Learning Outcomes

Identify the basic types of stress.
Understand different kinds of strength including yield, tensile, fatigue, impact, and hardness.
Understand the relationship between stress and strain.
Understand the chemical composition and atomic structure classifications for common alloys.
Understand melting, freezing, and allotropic phase changes.
Interpret basic iron-carbon phase diagram.
Understand the heat-related effects of welding including grain size and HAZ.
Understand the effects of heat treatment.
Perform simple heat treatment procedure on steel chisel.

Course Contents

Basic types of stress.
Different kinds of strength including yield, tensile, fatigue, impact, and hardness.
Relationship between stress and strain.
Chemical composition and atomic structure classifications for common alloys.
Melting, freezing, and allotropic phase changes.
Basic iron-carbon phase diagram.
Heat-related effects of welding including grain size and HAZ.
The effects of heat treatment.
Simple heat treatment procedure on steel chisel.

Instructional Units: 5