High Temperature

1 case · 10 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Microstructure: Monophasic Capture method: Optical Microscope Detail focus: Microstructure clear all

High Temperature — sub-branches

Overheating 1

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Micrographic detail of the granular copper structure, a little far from the overheated region.
102
VIEW
ML00180 / Mar.2022
Local Melting of Copper Cooling Tubes
M - Pure CopperP - Cooling TubeAp - SiderurgyCd - Overheating
Cm - FeCl3+HCl+H2O Etched MicroDf - Granular structure

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ML00180 — Local Melting of Copper Cooling TubesM - Pure CopperP - Cooling TubeAp - SiderurgyCd - Overheating
Micrographic detail of the granular copper structure, out of the damaged area. The dark particles are non metallic (oxides).
93
VIEW
ML00180 / Mar.2022
Local Melting of Copper Cooling Tubes
M - Pure CopperP - Cooling TubeAp - SiderurgyCd - Overheating
Cm - FeCl3+HCl+H2O Etched MicroDf - Granular structure
Micrographic aspect of the tube wall under the localized thinning, in a transverse section, showing a coarse structure due to high temperature grain growth.
37
VIEW
ML00180 / Mar.2022
Local Melting of Copper Cooling Tubes
M - Pure CopperP - Cooling TubeAp - SiderurgyCd - Overheating
Cm - FeCl3+HCl+H2O Etched MicroDf - Overheating
Micrographic detail of the high temperature grain growth in the tube microstructure.
31
VIEW
ML00180 / Mar.2022
Local Melting of Copper Cooling Tubes
M - Pure CopperP - Cooling TubeAp - SiderurgyCd - Overheating
Cm - FeCl3+HCl+H2O Etched MicroDf - Coarse Structure
Micrographic detail of the high temperature grain growth in the tube microstructure.
35
VIEW
ML00180 / Mar.2022
Local Melting of Copper Cooling Tubes
M - Pure CopperP - Cooling TubeAp - SiderurgyCd - Overheating
Cm - FeCl3+HCl+H2O Etched MicroDf - Coarse Structure
Micrography of the interface between the melted steel (top) and the copper tube (bottom), showing a mixture of melted materials.
31
VIEW
ML00180 / Mar.2022
Local Melting of Copper Cooling Tubes
M - Pure CopperP - Cooling TubeAp - SiderurgyCd - Overheating
Cm - Nital Etched Micrography by OMDf - Mixture of Melted Metals

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