Keller Etched Micrography by OM

2 cases · 4 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Detail focus: Weld Metal clear all

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The weld metal presents the same structure than the base metal (alpha aluminum dendrites with Si/Al alpha eutectic in the interdendritic space) but refined when compared to the base metal. Also the hardness level is higher for the weld metal than the base metal.
37
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ML00070 / Jan.2019
Automotive Light Alloy Wheel Repaired By Welding
M - Aluminum Silicon MagnesiumP - RimAp - AutomotiveCd - Removed From Service
Cm - Keller Etched Micrography by OMDf - Weld Metal
Micrography of the weld metal structure. At the interface between the two passes, close to the AA 3003 pipe.
50
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ML00059 / Feb.2018
Intergranular Corrosion of Aluminum Piping
M - Aluminum ManganeseP - Welded JointAp - Chemical IndustryCd - Intergranular Corrosion
Cm - Keller Etched Micrography by OMDf - Weld Metal

More from these cases

ML00059 — Intergranular Corrosion of Aluminum PipingM - Aluminum ManganeseP - Welded JointAp - Chemical IndustryCd - Intergranular Corrosion
Weld metal structure.
44
VIEW
ML00059 / Feb.2018
Intergranular Corrosion of Aluminum Piping
M - Aluminum ManganeseP - Welded JointAp - Chemical IndustryCd - Intergranular Corrosion
Cm - Keller Etched Micrography by OMDf - Weld Metal
Micrographic detail of the weld metal structure.
53
VIEW
ML00059 / Feb.2018
Intergranular Corrosion of Aluminum Piping
M - Aluminum ManganeseP - Welded JointAp - Chemical IndustryCd - Intergranular Corrosion
Cm - Keller Etched Micrography by OMDf - Weld Metal