Microstructure

9 cases · 45 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Microstructure: Duplex Ferritic Austenitic Capture method: Optical Microscope clear all

Microstructure — sub-branches

Banded Structure 1Coarse Structure 4Coating Layer 2Duplex structure 17Ferrite and Austenite 6Fusion Line 2Grain refined structure 1Sigma 6Strain Hardened 1Thermal Spray Layer 5

Results

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Micrography of the flange in the longitudinal section. The flange microstructure is ferritic austenitic, presenting a coarse structure.
102
VIEW
ML00002 / Jan.2018
Preferential Dissolution and Cracks in SDSS
M - Super Duplex Stainless SteelP - Fabrication WeldAp - PipingCd - Preferential Dissolution
Cm - NaOH Electrolytic Etched MicroDf - Coarse Structure

More from these cases

ML00002 — Preferential Dissolution and Cracks in SDSSM - Super Duplex Stainless SteelP - Fabrication WeldAp - PipingCd - Preferential Dissolution
Micrographic detail of the flange microstructure in the longitudinal section. The flange is ferritic austenitic, presenting 70% of austenite. In the ferrite network there are evidences of precipitation/formation of detrimental phases.
113
VIEW
ML00002 / Jan.2018
Preferential Dissolution and Cracks in SDSS
M - Super Duplex Stainless SteelP - Fabrication WeldAp - PipingCd - Preferential Dissolution
Cm - NaOH Electrolytic Etched MicroDf - Duplex structure
Micrographic detail of the flange microstructure in the longitudinal section. The flange is ferritic austenitic, presenting 70% of austenite. In the ferrite network there are evidences of precipitation/formation of detrimental phases.
100
VIEW
ML00002 / Jan.2018
Preferential Dissolution and Cracks in SDSS
M - Super Duplex Stainless SteelP - Fabrication WeldAp - PipingCd - Preferential Dissolution
Cm - NaOH Electrolytic Etched MicroDf - Duplex structure