TYPE OF DEFECTS AND THEIR SIGNIFICANCE
Defects in weldments in general can be classified as follows:
I. Defects involving inadequate bonding
- Lack of fusion
- Incomplete penetration
II. Foreign inclusions
- Slag
- Oxide films
- Tungsten
III. Geometric Defects
- Undercut
- Excessive reinforcement
- Burn through or excessivepenetration
- Distortion
- Improper weld profile.
IV. Metallurgical Defects
- Cracks
- Gas porosity
- Arc strikes
- Embrittlement
- Structural notches