AISI

3 cases · 4 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Capture method: Fracture Surface Aspect clear all

AISI — sub-branches

1010 11020 11045 11070 1304 1304L 1310 1316 5347 Nb stabilized 1409 1410 24130 54140 4420 24330V 14340 24820 16150 28620 18630 1D2 1Dual grade 316/316L 1

Results

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Aspect of the housing after opening the through wall cracking. The fracture is brittle and presents chevron marks.
25
VIEW
ML00093 / Sep.2017
MIC of a Drilling Tool
M - Low Alloy Medium Carbon QTP - Heat Treated PartAp - O&G Well DrillingCd - Brittle Behavior
Cm - Fracture Surface AspectDf - Brittle Fracture
Macroscopic aspect of the fracture surface, showing a brittle behavior (chevron marks) and a starting point at the bottom of the groove in the right side of the figure.
42
VIEW
ML00080 / Sep.2017
MIC of Stacking Disc Springs
M - Low Alloy Medium Carbon QTP - SpringAp - SubseaCd - Brittle Behavior
Cm - Fracture Surface AspectDf - Brittle Fracture
After opening the cracking the fracture surface aspect evidences fatigue cracking propagation, starting from the external side (OD).
68
VIEW
ML00012 / Aug.2017
Vibration Induced Fatigue in a 316/316L SS
M - Austenitic Stainless SteelP - Seamless PipeAp - OffshoreCd - Vibration Induced Fatigue
Cm - Fracture Surface AspectDf - Fatigue Fracture

More from these cases

ML00080 — MIC of Stacking Disc SpringsM - Low Alloy Medium Carbon QTP - SpringAp - SubseaCd - Brittle Behavior
Detail of the fracture starting point, in the bottom of the groove, where there is a pit about 0.5 mm depth.
36
VIEW
ML00080 / Sep.2017
MIC of Stacking Disc Springs
M - Low Alloy Medium Carbon QTP - SpringAp - SubseaCd - Brittle Behavior
Cm - Fracture Surface AspectDf - Brittle Fracture