NaOH Electrolytic Etched Macro

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Crevice Corrosion in a Subsea System — Aspect Before Analysis

Condition: Preferential Dissolution clear all

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Macrography of a longitudinal section of the flange to pipe weld, cracked in the flange. Pipe thickness, measured, is 5 mm. Flange thickness at the welded region is 7.5 mm. The macro was etched using NaOH solution, electrolytic.
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ML00002 / Jan.2018
Preferential Dissolution and Cracks in SDSS
M - Super Duplex Stainless SteelP - Fabrication WeldAp - PipingCd - Preferential Dissolution
Cm - NaOH Electrolytic Etched MacroDf - Longitudinal Section