Page 7 - Quick Guide to Welding and Weld Inspection by S.E. Hughes, Clifford Matthews
P. 7
A Quick Guide to Welding and Weld Inspection
Flux-cored arc welding (FCAM) 59
Tungsten inert gas (TIG)/gas tungsten arc
welding (GTAW) 61
Submerged arc welding (SAW) 63
Chapter 6: Non-destructive and Destructive Testing
Liquid penetrant testing (PT) 67
Magnetic particle testing (MT) 69
Ultrasonic testing (UT) 71
Radiographic testing (RT) 73
Tension tests 77
Bend tests 77
Charpy tests 78
Hardness testing 81
Macro samples 83
Micro samples 85
Fillet fracture test 85
Butt weld fracture test (nick break) 85
Chapter 7: Fracture Modes and Welding Defects
Imperfection categories 88
Hydrogen-induced cold cracking (HICC) 88
Solidification cracking 90
Reheat cracking 93
Lamellar tearing 93
Weld decay 97
Porosity 98
Solid inclusions 101
Lack of fusion 101
Incomplete root penetration 102
Root concavity 102
Excessive root penetration 103
Overlap 103
Underfill 104
Undercut 104
Crater pipe 105
Burn-through 106
Root oxidation 106
Arc strike 106
vi
Woodhead Publishing Ltd – A Quick Guide to Welding and Weld Inspection
Data Standards Ltd, Frome, Somerset – 17/9/200900QG Welding Prelims.3d Page 6 of 14
