Vocab
An intentional or unintentional interruption in the physical structure or configuration of a part.
discontinuity
A set of instructions or standards invoked by a specific customer to govern the results or performance of a specific set of tasks or products
Specification
In arc or gas fusion welding, a cavity in the weld bead surface, typically occurring when the heat source is removed and insufficient filler metal is available to fill the cavity.
crater
The central cavity formed during solidification of metal, especially ingots, by thermal contraction
shrink pipe / shrinkage
this river forms the NE border of Oregon and arcs around to the SW in the Columbia in central WA
snake
An NDT response that requires interpretation to determine its relevance
Indication
Document to control and govern practices in an industry or application, applied on a national or international basis and usually produced by consensus
Standard
A discontinuity in metal resulting from the creation or coalescence of gas. Very small pores are called pinholes.
porosity
Discontinuity caused by two streams of semi-molten metal coming together inside a mold but failing to fuse.
cold shut
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pdx
An NDT indication that is interpreted to be caused by a condition other than a discontinuity or imperfection.
false indication
An instruction that is specific to how to tests a certain part. Usually outlines specific step by step details for a specific inspection.
Technique / spec
Propagating discontinuities caused by stresses such as heat treating or grinding. Difficult to detect unaided because of fineness of line and pattern
cracks
In metal, external or internal rupture caused by improper forming
burst
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willamette
An NDT indication that is caused by a condition or in a location that does not affect the usability or integrity of the object
Society that publishes documents that relate to the qualification and certification of personnel
ASNT
Cracking that is perpendicular to the long axis of the weld.
transverse
A discontinuity caused by escaping gas, usually in a casting.
blow hole
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crater
Discontinuities that are associated with the melting and solidification of the ingot before it is formed into slabs, blooms, and billets.
Inherent
with head waters in the blue mountains this is the longest undammed river in Oregon, longest period
john day