Optical Microscope

3 cases · 7 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Application: Structure Standard: B Detail focus: Microstructure clear all

Optical Microscope — sub-branches

FeCl3+HCl+H2O Etched Micro 1Micrography by OM, HF + HNO3 + H2O etch 6

Results

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The plate longitudinal section presents a granular refined structure. Biphasic.
340
VIEW
ML00029 / Jan.2017
Titanium Plate for Subsea Application
M - Ti6Al4VP - Rolled PlateAp - StructureCd - Typical manufacturing
Cm - Micrography by OM, HF + HNO3 + H2O etchDf - Grain refined structure
The bar presented a large prior beta grain size and acicular alpha. Biphasic structure.
420
VIEW
ML00028 / Jan.2017
Titanium Bar for Subsea Application
M - Ti6Al4VP - BarAp - StructureCd - Typical manufacturing
Cm - Micrography by OM, HF + HNO3 + H2O etchDf - Coarse Structure
The micrography of the pin far from the fracture surface shows a biphasic brass, and Pb inclusions that are intentional to give a free machining condition for the alloy.
76
VIEW
ML00007 / Dec.2020
Free Machining Brass in Shear Pin
M - BrassP - Machined PartAp - LiftingCd - Shear
Cm - FeCl3+HCl+H2O Etched MicroDf - Two phases

More from these cases

ML00029 — Titanium Plate for Subsea ApplicationM - Ti6Al4VP - Rolled PlateAp - StructureCd - Typical manufacturing
Alpha and beta phases. Refined Structure.
52
VIEW
ML00029 / Jan.2017
Titanium Plate for Subsea Application
M - Ti6Al4VP - Rolled PlateAp - StructureCd - Typical manufacturing
Cm - Micrography by OM, HF + HNO3 + H2O etchDf - Two phases
Alpha and beta phases. Refined Structure.
46
VIEW
ML00029 / Jan.2017
Titanium Plate for Subsea Application
M - Ti6Al4VP - Rolled PlateAp - StructureCd - Typical manufacturing
Cm - Micrography by OM, HF + HNO3 + H2O etchDf - Two phases
ML00028 — Titanium Bar for Subsea ApplicationM - Ti6Al4VP - BarAp - StructureCd - Typical manufacturing
The bar presented alpha plus beta phases, acicular alpha and coarse prior beta grains.
97
VIEW
ML00028 / Jan.2017
Titanium Bar for Subsea Application
M - Ti6Al4VP - BarAp - StructureCd - Typical manufacturing
Cm - Micrography by OM, HF + HNO3 + H2O etchDf - Two phases
Acicular alpha structure in a biphasic alloy of a large prior beta grain size. 4" diameter bar.
100
VIEW
ML00028 / Jan.2017
Titanium Bar for Subsea Application
M - Ti6Al4VP - BarAp - StructureCd - Typical manufacturing
Cm - Micrography by OM, HF + HNO3 + H2O etchDf - Acicular Alpha