Microstructure

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Crevice Corrosion in a Subsea System — Aspect Before Analysis

Condition: Damage Standard: AISI Capture method: Scanning Electron Microscope clear all

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Austenite 8Austeno ferritic 1Bainite 2Carburized Layer 1Coarse Structure 1Coating Layer 2Equiaxial Grains 2Ferrite and Carbides 1Ferritic Bainitic 1Ferritic pearlitic 2Free from Carbides 1Intragranular Intergranular Precipitates 1Martensite 7Martensite and Carbides 1Martensite and Retained Austenite 1Refined ferritic 1Secondary carbides 2Segregation Bands 5Small amount of delta ferrite 1Strain Hardened 1Surface Layer of Hard Chromium 1Surface layer of Thermal Spray 2Tempered Martensite 10