Workgroup Contents

Lecture 2.6 : Weldability of Structural Steels

1. INTRODUCTION

1.1 A Brief Description of the Welding Process

1.2 The Main Welding Processes

1.3 Welded Joint Design and Preparation

1.4 The Effect of the Welding Thermal Cycle on the Microstructure

1.5 Residual Welding Stresses and Distortion

1.6 Residual Stress Relief

2. THE WELDABILITY OF STRUCTURAL STEELS

2.1 Introduction

2.2 Weld Metal Solidification Cracking

2.3 Heat Affected Zone (HAZ) Cracking

2.3.1 Liquation cracking (burning)

2.3.2 Hydrogen induced cracking

2.4 Lamellar Tearing

2.5 Re-Heat Cracking

3. CONCLUDING SUMMARY