Remanufacture by Welding

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Crevice Corrosion in a Subsea System — Aspect Before Analysis

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Micrography of the weld metal with columnar grains and reheated and refined grains.
11
VIEW
ML00055 / Apr.2017
CA6NM Blade Remanufactured by Welding
M - Martensitic Stainless SteelP - Remanufacture by WeldingAp - EnergyCd - Removed From Service
Cm - Kalling Etched Micrography by OMDf - Weld Metal

More from these cases

ML00055 — CA6NM Blade Remanufactured by WeldingM - Martensitic Stainless SteelP - Remanufacture by WeldingAp - EnergyCd - Removed From Service
Weld metal micrography showing the tempered martensitic microstructure. It is possible to see previous austenite grain boundaries slightly marked.
12
VIEW
ML00055 / Apr.2017
CA6NM Blade Remanufactured by Welding
M - Martensitic Stainless SteelP - Remanufacture by WeldingAp - EnergyCd - Removed From Service
Cm - Kalling Etched Micrography by OMDf - Weld Metal
Micrographic detail of the weld metal presenting columnar grains and martensitic structure.
13
VIEW
ML00055 / Apr.2017
CA6NM Blade Remanufactured by Welding
M - Martensitic Stainless SteelP - Remanufacture by WeldingAp - EnergyCd - Removed From Service
Cm - Kalling Etched Micrography by SEMDf - Weld Metal
Higher magnification of the martensitic structure of the weld metal, in a region where the previous austenitic grains are columnar. Hardness level of 350HV10.
12
VIEW
ML00055 / Apr.2017
CA6NM Blade Remanufactured by Welding
M - Martensitic Stainless SteelP - Remanufacture by WeldingAp - EnergyCd - Removed From Service
Cm - Kalling Etched Micrography by SEMDf - Weld Metal
Micrographic detail of the weld metal presenting equiaxial grains grains and martensitic structure. There are also multiples globular inclusions, caracteristic of a welding process that uses flux.
10
VIEW
ML00055 / Apr.2017
CA6NM Blade Remanufactured by Welding
M - Martensitic Stainless SteelP - Remanufacture by WeldingAp - EnergyCd - Removed From Service
Cm - Kalling Etched Micrography by SEMDf - Weld Metal
Higher magnification of the martensitic structure of the weld metal, hardness level of 350HV10.
10
VIEW
ML00055 / Apr.2017
CA6NM Blade Remanufactured by Welding
M - Martensitic Stainless SteelP - Remanufacture by WeldingAp - EnergyCd - Removed From Service
Cm - Kalling Etched Micrography by SEMDf - Weld Metal

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