Sound

3 cases · 20 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Application: O&G Well Drilling Capture method: Optical Microscope clear all

Sound — sub-branches

Thermal spray 1Typical manufacturing 2

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Micrography, as polished, of the transverse section of the forged pin with the layer applied by a (thermal) spray and fuse process. The structure of the layer that is 0.7 mm thick, presented entrapped pores and globular oxides. The layer was melted after application by thermal spray (in this case using a flame) and the pin was quenched and tempered after the full application and melting of the layer.
360
VIEW
ML00109 / Jan.2018
Thermal Spray and Fuse Layer in Forged Pin
M - Low Alloy Medium Carbon QTP - Tubular ForgingAp - O&G Well DrillingCd - Thermal spray
Cm - As polished micrographyDf - Transverse Section
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
Grey cast iron microstructe. Perlitic matrix and graphite flakes.
508
VIEW
ML00032 / Jan.2017
Cast Iron Case of Drilling Equipment
M - Gray Cast ironP - CastAp - O&G Well DrillingCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Pearlite Matrix

More from these cases

ML00109 — Thermal Spray and Fuse Layer in Forged PinM - Low Alloy Medium Carbon QTP - Tubular ForgingAp - O&G Well DrillingCd - Thermal spray
Micrography, as polished, of the transverse section of the forged pin with the layer applied by a (thermal) spray and fuse process. The layer was melted after thermal spray application and the layer presents a continuous matrix, but there are globular oxides and pores entrapped.
29
VIEW
ML00109 / Jan.2018
Thermal Spray and Fuse Layer in Forged Pin
M - Low Alloy Medium Carbon QTP - Tubular ForgingAp - O&G Well DrillingCd - Thermal spray
Cm - As polished micrographyDf - Surface Layer
Micrographic detail, as polished, of the transverse section of the forged pin at the interface between the pin and the spray and fuse layer. The pin was heat treated after the thermal spray, and fuse treatment. The interface presents a higher concentration of globular oxides and pores, entrapped.
23
VIEW
ML00109 / Jan.2018
Thermal Spray and Fuse Layer in Forged Pin
M - Low Alloy Medium Carbon QTP - Tubular ForgingAp - O&G Well DrillingCd - Thermal spray
Cm - As polished micrographyDf - Surface Layer
Low magnification micrography of the interface between the pin and the spray and fuse layer. Close to the surface, under the layer, the pin presents a quenched and tempered structure, compatible with a high strenght requirement. Transverse section.
20
VIEW
ML00109 / Jan.2018
Thermal Spray and Fuse Layer in Forged Pin
M - Low Alloy Medium Carbon QTP - Tubular ForgingAp - O&G Well DrillingCd - Thermal spray
Cm - Nital Etched Micrography by OMDf - Surface Layer
Micrography of the pin close to the interface with the spray and fuse layer. Transverse section. The fuse is conducted in high temperature and the pin was quenched and tempered after the thermal spray deposition and fuse by flame (in this case the melting of the applied layer was conducted by a oxifuel flame.
21
VIEW
ML00109 / Jan.2018
Thermal Spray and Fuse Layer in Forged Pin
M - Low Alloy Medium Carbon QTP - Tubular ForgingAp - O&G Well DrillingCd - Thermal spray
Cm - Nital Etched Micrography by OMDf - Martensite
Micrographic detail of the tempered martensite structure close to the interface with the spray and fuse layer. Transverse section. The fuse is conducted in high temperature and the pin was heat treated after the thermal spray deposition and fuse.
16
VIEW
ML00109 / Jan.2018
Thermal Spray and Fuse Layer in Forged Pin
M - Low Alloy Medium Carbon QTP - Tubular ForgingAp - O&G Well DrillingCd - Thermal spray
Cm - Nital Etched Micrography by OMDf - Martensite

+3 more from this case →

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
ML00032 — Cast Iron Case of Drilling EquipmentM - Gray Cast ironP - CastAp - O&G Well DrillingCd - Typical manufacturing
Low magnification micrography presenting the grapjite morphology.
138
VIEW
ML00032 / Jan.2017
Cast Iron Case of Drilling Equipment
M - Gray Cast ironP - CastAp - O&G Well DrillingCd - Typical manufacturing
Cm - Micrography by OMDf - Graphite Type A (ASTM A247)
Grey cast iron structure. As polished.
111
VIEW
ML00032 / Jan.2017
Cast Iron Case of Drilling Equipment
M - Gray Cast ironP - CastAp - O&G Well DrillingCd - Typical manufacturing
Cm - Micrography by OMDf - Graphite in Flakes
Grey cast iron with graphite in flakes.
98
VIEW
ML00032 / Jan.2017
Cast Iron Case of Drilling Equipment
M - Gray Cast ironP - CastAp - O&G Well DrillingCd - Typical manufacturing
Cm - Micrography by OMDf - Graphite in Flakes
Grey cast iron with graphite in flakes and perlitic matrix.
110
VIEW
ML00032 / Jan.2017
Cast Iron Case of Drilling Equipment
M - Gray Cast ironP - CastAp - O&G Well DrillingCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Perlite Matrix
Grey cast iron microstructe. Perlitic matrix and graphite flakes.
85
VIEW
ML00032 / Jan.2017
Cast Iron Case of Drilling Equipment
M - Gray Cast ironP - CastAp - O&G Well DrillingCd - Typical manufacturing
Cm - Nital Etched Micrography by OMDf - Graphite Type A (ASTM A247)

+1 more from this case →