Heat Affected Zone

2 cases · 3 images for “corrosion”

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Capture method: Optical Microscope clear all

Heat Affected Zone — sub-branches

HAZ Left Side 1HAZ Right Side 1Heat Affected Zone 1

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Micrographic detail of the microstructure close to the corroded area showing the heat affected zone of the autogenous weld, with a refined grain size. The hardness level here is 202HV average, compared to the base metal that is 180HV average.
37
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ML00140 / May.2019
Preferential Corrosion of Pipe Seam Weld
M - Low Carbon SteelP - Longitudinal Seam Welded PipeAp - ShipCd - Preferential Dissolution
Cm - Nital Etched Micrography by OMDf - Heat Affected Zone
Micrographic detail of the pipe heat affected zone. The fusion line is at the left-top of the picture and the epitaxial grain growth through this line is remarkable.
85
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ML00065 / May.2017
Erosion Corrosion of Monel Piping
M - NiCu AlloyP - Seamless PipeAp - Chemical IndustryCd - Erosion Corrosion
Cm - Kalling Etched Micrography by OMDf - HAZ Left Side

More from these cases

ML00065 — Erosion Corrosion of Monel PipingM - NiCu AlloyP - Seamless PipeAp - Chemical IndustryCd - Erosion Corrosion
Micrographic detail of the elbow heat affected zone. The weld metal is at the top.
50
VIEW
ML00065 / May.2017
Erosion Corrosion of Monel Piping
M - NiCu AlloyP - Seamless PipeAp - Chemical IndustryCd - Erosion Corrosion
Cm - Kalling Etched Micrography by OMDf - HAZ Right Side