Aluminum Alloy

1 case · 4 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Detail focus: Localized Corrosion clear all

Aluminum Alloy — sub-branches

Aluminum Magnesium Manganese 1Aluminum Magnesium Silicon 1Aluminum Manganese 1Aluminum Silicon Magnesium 2Aluminum Tin 1

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The macrography of the welded joint shows the AA 6063 alloy pipe in the right and the AA 3003 pipe in the left, welded in two passes. The root presents small regions of corrosion in the weld metal and a localized corrosion at the fusion line of the 6063 pipe (knife-line attack morphology).
397
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ML00059 / Feb.2018
Intergranular Corrosion of Aluminum Piping
M - Aluminum ManganeseP - Welded JointAp - Chemical IndustryCd - Intergranular Corrosion
Cm - Keller Etched MacroDf - Localized Corrosion

More from these cases

ML00059 — Intergranular Corrosion of Aluminum PipingM - Aluminum ManganeseP - Welded JointAp - Chemical IndustryCd - Intergranular Corrosion
Intergranular corrosion at the fusion line of the AA 6063 pipe.
81
VIEW
ML00059 / Feb.2018
Intergranular Corrosion of Aluminum Piping
M - Aluminum ManganeseP - Welded JointAp - Chemical IndustryCd - Intergranular Corrosion
Cm - Keller Etched Micrography by OMDf - Localized Corrosion
Intergranular corrosion at the fusion line of the AA 6063 pipe, that presents strong precipitation.
89
VIEW
ML00059 / Feb.2018
Intergranular Corrosion of Aluminum Piping
M - Aluminum ManganeseP - Welded JointAp - Chemical IndustryCd - Intergranular Corrosion
Cm - Keller Etched Micrography by OMDf - Localized Corrosion
Micrographic detail of the intergranular corrosion at the fusion line of the AA 6063 pipe.
72
VIEW
ML00059 / Feb.2018
Intergranular Corrosion of Aluminum Piping
M - Aluminum ManganeseP - Welded JointAp - Chemical IndustryCd - Intergranular Corrosion
Cm - Keller Etched Micrography by OMDf - Localized Corrosion