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1 case · 4 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Condition: Sound Standard: Modified Capture method: Optical Microscope clear all

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The micrography in the longitudinal section in the middle of the thickness shows a light banding. Quenched and tempered structure.
346
VIEW
ML00037 / Jun.2017
LAS Forging for Pump Body
M - Low Alloy Medium Carbon QTP - Heat Treated PartAp - O&G Well DrillingCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Longitudinal Section

More from these cases

ML00037 — LAS Forging for Pump BodyM - Low Alloy Medium Carbon QTP - Heat Treated PartAp - O&G Well DrillingCd - Typical manufacturing
Quenched and tempered structure of the 1" thick forging presenting a light banding.
43
VIEW
ML00037 / Jun.2017
LAS Forging for Pump Body
M - Low Alloy Medium Carbon QTP - Heat Treated PartAp - O&G Well DrillingCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Banded Structure
Longitudinal section in the middle of the thickness. Quenched and tempered structure.
38
VIEW
ML00037 / Jun.2017
LAS Forging for Pump Body
M - Low Alloy Medium Carbon QTP - Heat Treated PartAp - O&G Well DrillingCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Martensite
Vickers microhardness in and out of the segregation bands. The average hardness value in the band (1, 2 and 3 identations) is 354 HV 50g and out of the band (4, 5 and 6 identations) is 286 HV 50g.
33
VIEW
ML00037 / Jun.2017
LAS Forging for Pump Body
M - Low Alloy Medium Carbon QTP - Heat Treated PartAp - O&G Well DrillingCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Banded Structure