Atlas

2 cases · 2 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Condition: Used Microstructure: Alpha Capture method: Naked Eye or Stereoscope clear all

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Macrography of a ring transverse section presenting a large variation in the grain size, revealing the diferences in the solidification rate.
453
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ML00166 / Jul.2020
Tin Bronze Wear Ring of Seawater Pump
M - Tin BronzeP - Wear RingAp - ShipCd - Removed From Service
Cm - FeCl3+HCl+H2O solution Etched MacroDf - Casting Structure
The macrography of the transverse section shows the columnar grains typical of a centrifugally cast material. The etch is the same as the adopted for the micrographies. The bushing thickness is 1/2".
41
VIEW
ML00044 / Feb.2017
Centrifugally Cast CuAl Bushing
M - Aluminum BronzeP - Cast BushingAp - EngineCd - Removed From Service
Cm - Transverse Section AspectDf - Columnar Grains