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1 case · 2 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Standard: 1045 Capture method: Optical Microscope Detail focus: Microstructure clear all

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Tempered martensitic microstructure in the transverse section of the nut, in the center. The material presented 29 HRc that is typical of a quenched and tempered steel.
30
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ML00099 / Jan.2018
Forging Defect in a Cadmium Plated Nut
M - Medium Carbon SteelP - NutAp - PipingCd - Fabrication Defect
Cm - Nital Etched Micrography by OMDf - Martensite

More from these cases

ML00099 — Forging Defect in a Cadmium Plated NutM - Medium Carbon SteelP - NutAp - PipingCd - Fabrication Defect
Ferritic-bainitic microstructure in the transverse section of the nut, at the surface where the cadmium plate is also evident. The nut surface presents a decarburized layer and the lap entrapped oxides.
30
VIEW
ML00099 / Jan.2018
Forging Defect in a Cadmium Plated Nut
M - Medium Carbon SteelP - NutAp - PipingCd - Fabrication Defect
Cm - Nital Etched Micrography by OMDf - Bainitic Ferrite