Cracking

1 case · 2 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Condition: Brittle Behavior Microstructure: Zinc Layer Capture method: Optical Microscope clear all

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Micrography of the cracking parallel to the fracture, as polished. The fracture is branched, there are several secondary cracks, with a clear intergranular morphology.
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ML00138 / Jun.2018
Liquid Metal Embrittlement of a HSLA Steel
M - High Strength Low AlloyP - Coated ProductAp - Mechanical IndustryCd - Liquid Metal Embrittlement
Cm - As polished micrographyDf - Cracking

More from these cases

ML00138 — Liquid Metal Embrittlement of a HSLA SteelM - High Strength Low AlloyP - Coated ProductAp - Mechanical IndustryCd - Liquid Metal Embrittlement
Micrography of the branch cracking parallel to the fracture. There are several secondary intergranular cracks and the cracks are filled with zinc. The zinc appears dark because of the Nital etch, and the steel is not fully revealed because of the protection by the zinc.
54
VIEW
ML00138 / Jun.2018
Liquid Metal Embrittlement of a HSLA Steel
M - High Strength Low AlloyP - Coated ProductAp - Mechanical IndustryCd - Liquid Metal Embrittlement
Cm - Nital Etched Micrography by OMDf - Cracking