Industrial application of metal coating for improved corrosion resistance
Typ
Examensarbete för masterexamen
Program
Publicerad
2022
Författare
Butkovic, Antonio
Modellbyggare
Tidskriftstitel
ISSN
Volymtitel
Utgivare
Sammanfattning
Gradual degradation of metal surfaces also known as corrosion is a well-known phenomenon
found in most industries. This destructing mechanism can lead to reduced
utility and efficiency, or in the worst case, total failure of plants, equipment, and
components which is extremely costly and also serve consequence to human life and
the environment. An industry that is greatly affected by this problem is the oil and
gas industry where crude oil and other aggressive chemicals are common. To ensure
that all processes safely take place, these are continuously checked by different types
of level switches and systems that are usually mounted with flanges on tanks and
pipelines. Which makes them exposed to corrosion.
This report investigates the possibilities of increased corrosion resistance of stainless
steel flanges with help of cladding. A prototype was developed by initial materialand
process selection for the cladding which then was verified by different laboratory
tests to examine the final properties of the prototype.
The results gained from the laboratory tests of the prototype show that the cladding
continued to have good corrosion resistance even after welding, as well as good adhesion
with the substrate with few defects in the interface which means a good balance
in the amount of dilution between the different materials. However, the cladding
showed porosity which was expected according to the manufacturing method. These
results are a good indication that cladding can be a good method for increasing the
corrosion resistance of flanges.
Beskrivning
Ämne/nyckelord
Corrosion , cladding , flange , oil and gas