PHOTO #4 Removed tube sample
NOTE: Failure in tube
PHOTO #4
Bottom Half - Note Minimal Corrosion
Liquid
PHOTO #5 Severe groove depth adjacent
to edge of support
PHOTO #6
PHOTO #7
PHOTO #8
PHOTO #5
Top Half - Note Corrosion
PHOTO #6
Bottom Half - Note Minimal Corrosion
PHOTO #7 Cross Section
Tube split to show top & bottom
-
Left & right sides show minimal corrosion. Liquid covered.
-
Inner left & right (top circumference of tube) show heavy corrosion. Liquid/Vapor.
PHOTO #8
Top Half - Note Corrosion
Unexpected Tube Failure in
HDS Stripper OVHD Air Cooler
chronicle companion images
PHOTO #2
NOTE: Close up of Failure
PHOTO #1
Top half of tube looking at failure
PHOTO #3
Top Half of Tubing - Note Corrosion
Liquid/Vapor
Cracking: Is it...
Stress Corrosion Cracking?
Corrosion Fatigue Craking?
Hydrogen Induced Cracking?
chronicle companion images
PHOTO #1
PHOTO #2
NOTE: Pitting Attack along Crack Foundation
PHOTO #3
Numerous Crack Formations as Noted along Affected Tube Length Portion
PHOTO #4
PHOTO #5
PHOTO #6
PHOTO #7
Single Crack Pit Initiation Site
PHOTO #8
NOTE: Axial Crack Propagation from Circ. Crack
PHOTO #9
PHOTO #10
PHOTO #11
PHOTO #13
