Corrosion and Corrosion Erosion on Stainless Steel

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Methodology
The focus of this particular research work is to extend the idea as well as the knowledge on the
topic of corrosion as well as corrosion erosion on the stainless steel in flow induced as well as
static environment. As a result several methods have been adopted to assist the project achieves
its aim that had been set for the study. In the case of the static corrosion conditions, there was
determination of the breakdown potential of at least six alloys. The passive film chemistry of the
stainless chemistry was determined after the exposure to the environment at the open circuit
potential. The alloys of the stainless steel which were used for the case if the study included
UNSS32304 as well as UNS S32101(Roy et al 2018). These two particular alloys were chosen
because of the variation in the content of the variation in the content of the manganese and the
close pitting resistant which is equivalent to stated number (PREVN)
Figure 1: SLM Machine(Zhang et al 2017)
Under the conditions of the flow-induced corrosion, there was consideration of at least four
alloys. The Erosion –corrosion behaviour of such alloys were too studied in the submerged
impinging jet rig commonly known as SIJ in the condition of the saturated CO2 as well as
aerated air for about 15m/s velocity The results were then produced on a simulation platform of
FEA analysis that will be shred later in the this particular figure. From the chosen alloy samples

of the stainless steels, UNSS30403 as well as UNS32101 were produced from the SLM 125 HL
machine which is actually equipped with a 200w YLR–Fuser –Laser (λ=1070 nm) whose
location is in the first floor of the CADET building The produced sample specimen for the
experiments had dimensions of 10x10x10 mm3 . There was use of the higher velocity of about
24m/s in the study of erosion-corrosion behaviour of the samples under saturated solution of
Sodium Chloride(NaCl) commonly called brine(Wu et al 2016).
Selected Stainless steel for the study
There was use of at least six different samples of the stainless steel in the static corrosion
evaluation at the start of the experiment. These samples included UNS S30403, UNS S32304,
and UNS S31603), 316LSS in the case of the duplex stainless steel while the standard samples
included the use of the UNS S32205. The selection of the four alloys was very important
considering their representation of at least and every class of the alloys. Two grades of the
stainless steel(Duplex) were chosen because of the research interest on these particular alloys)

Sample of the steel used (Zhang et al 2017)
Alloys used for research work were as indicated in the figure below