WRC 342
SS Weld Metal: Prediction of Ferrite Content
ACFM can be used to find defects where?
Surface breaking/Near Surface
Eddy Current exam primarily applies to what type of materials?
Non-Ferromagnetic Materials
Define fusion line
Interface between base metal and weld metal
Define Lamellar tear
Subsurface terrace and step-like crack in the base metal parallel to the surface
True/ False
Recordable Indication exceeds rejection criteria.
False, does not exceed
, GTAW Alternating Current should be used when welding what type of materials?
Aluminum and Magnesium
GMAW Globular Transfer is limited to what positions?
Flat and Horizontal
The Plasma arc welding non transferred spray process is solely used for what?
The deposition of surface coatings
A bridge cam gauge can be used to determine what?
weld prep angle, excess weld metal, depth of undercut or pitting fillet weld throat size, weld leg-
length misalignment
An adjustable fillet weld gauge is used to determine what?
Weld sizes for fit ups with 45 degree members and welds with unequal leg lengths.
True/False
Reportable Indication does not exceed rejection criteria.
False, Does exceed
Weld size gauge is used to determine what?
Fillet weld size, actual throat size of convex/concave fillet welds, reinforcement of butt weld and root
openings
Hi-lo weld gauge is used to determine what?
internal misalignment, pipe wall thickness after alignment length between scribe lines, root opening
37 and a 1/2 bevel, fillet weld leg size, reinforcement on butt welds, internal mismatch, weld Crown
height, root weld spacing
ACFM is used for the evaluation and monitoring of what?
Existing Cracks
True/False
ACFM instrument needs to be calibrated every 2 years.
False, ACFM instrument does not need to be calibrated.
Eddy Current is used to detect defects where?
On the surface and sub-surface
Where is lack of fusion typically located?
Weld bevel angle or between subsequent weld passes
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