Atlas

2 cases · 4 images

Crevice Corrosion in a Subsea System — Aspect Before Analysis

Microstructure: Secondary carbides Capture method: Kalling Etched Macro Detail focus: Sampling and Analysis clear all

Results

SortNewest Oldest Title A-Z Title Z-A

This macrography shows a longitudinal section of the tubular cast fitting. The external side is to the top and the internal side to the bottom. The buttering layer is evident in the groove that would be welded to the centrifugall cast tube (right side) and part of the ID and OD. During the buttering welding of the casting the cracks were not detected because they were formed in the center of the thickness and some have propagated to the internal diameter, but not to the external diameter. They opened only when the buttered casting was welded to the tube.

21

ML00173 / May.2021

Welding Cracks in an Aged HP Cast Fitting

M - Heat Resistant SteelP - Cast FtittingAp - PetrochemicalCd - Welding

Cm - Kalling Etched MacroDf - Longitudinal Section

Macrography of the NEW TUBE, centrifugally cast, in the transverse section, presenting columnar grains close to the external surface.

50

ML00038 / Apr.2017

Cast SS Tube for High Temperature Service

M - Heat Resistant SteelP - Centrifugally Cast PipeAp - SiderurgyCd - Creep

Cm - Kalling Etched MacroDf - Transverse Section

More from these cases

ML00173 — Welding Cracks in an Aged HP Cast FittingM - Heat Resistant SteelP - Cast FtittingAp - PetrochemicalCd - Welding

1

ML00173 / May.2021

Welding Cracks in an Aged HP Cast Fitting

M - Heat Resistant SteelP - Cast FtittingAp - PetrochemicalCd - Welding

Cm - Kalling Etched MacroDf - Microhardness identations

ML00038 — Cast SS Tube for High Temperature ServiceM - Heat Resistant SteelP - Centrifugally Cast PipeAp - SiderurgyCd - Creep

33

ML00038 / Apr.2017

Cast SS Tube for High Temperature Service

M - Heat Resistant SteelP - Centrifugally Cast PipeAp - SiderurgyCd - Creep

Cm - Kalling Etched MacroDf - Transverse Section