Relative performance of two cast irons and two stainless steels under erosion-corrosion conditions

Georgios Karafyllias, Lampros Giourntas, Alexander Galloway, Trevor Hodgkiess

Research output: Contribution to conferencePaper

Abstract

Erosion-corrosion is one of the most challenging material degradation processes that occur in engineering components that handle slurries. Materials that can withstand a combination of corrosive fluid with suspended particles are required to extend the service life of hydraulic equipment. High chromium cast irons are favorable for these applications as the chromium carbides improve the wear resistance and usually, good corrosion resistance is obtained. In this study, two white cast irons (a 37%Cr - austenitic matrix and 27%Cr - martensitic matrix) were evaluated along with an austenitic stainless steel (UNS S31600) and a martensitic stainless steel (UNS S42000). The experiments were carried out using a submerged jet apparatus in a testing medium of 3.5% NaCl containing sand particles with and without cathodic protection. The most notable finding was that the relative performance of the tested materials varied by altering the testing conditions. The role of hardness in the performance of the different materials was also investigated.
LanguageEnglish
Number of pages10
Publication statusPublished - 6 Mar 2016
EventCorrosion 2016 - Vancouver, Canada
Duration: 6 Mar 201610 Mar 2016

Conference

ConferenceCorrosion 2016
CountryCanada
CityVancouver
Period6/03/1610/03/16

Fingerprint

Cast iron
Erosion
Stainless steel
Corrosion
Chromium
Martensitic stainless steel
Hydraulic equipment
Cathodic protection
Slurries
Testing
Austenitic stainless steel
Service life
Wear resistance
Carbides
Corrosion resistance
Sand
Hardness
Degradation
Fluids
Experiments

Keywords

  • cast iron
  • stainless steel
  • corrosion

Cite this

Karafyllias, G., Giourntas, L., Galloway, A., & Hodgkiess, T. (2016). Relative performance of two cast irons and two stainless steels under erosion-corrosion conditions. Paper presented at Corrosion 2016, Vancouver, Canada.
Karafyllias, Georgios ; Giourntas, Lampros ; Galloway, Alexander ; Hodgkiess, Trevor. / Relative performance of two cast irons and two stainless steels under erosion-corrosion conditions. Paper presented at Corrosion 2016, Vancouver, Canada.10 p.
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Karafyllias, G, Giourntas, L, Galloway, A & Hodgkiess, T 2016, 'Relative performance of two cast irons and two stainless steels under erosion-corrosion conditions' Paper presented at Corrosion 2016, Vancouver, Canada, 6/03/16 - 10/03/16, .

Relative performance of two cast irons and two stainless steels under erosion-corrosion conditions. / Karafyllias, Georgios; Giourntas, Lampros; Galloway, Alexander; Hodgkiess, Trevor.

2016. Paper presented at Corrosion 2016, Vancouver, Canada.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Relative performance of two cast irons and two stainless steels under erosion-corrosion conditions

AU - Karafyllias, Georgios

AU - Giourntas, Lampros

AU - Galloway, Alexander

AU - Hodgkiess, Trevor

PY - 2016/3/6

Y1 - 2016/3/6

N2 - Erosion-corrosion is one of the most challenging material degradation processes that occur in engineering components that handle slurries. Materials that can withstand a combination of corrosive fluid with suspended particles are required to extend the service life of hydraulic equipment. High chromium cast irons are favorable for these applications as the chromium carbides improve the wear resistance and usually, good corrosion resistance is obtained. In this study, two white cast irons (a 37%Cr - austenitic matrix and 27%Cr - martensitic matrix) were evaluated along with an austenitic stainless steel (UNS S31600) and a martensitic stainless steel (UNS S42000). The experiments were carried out using a submerged jet apparatus in a testing medium of 3.5% NaCl containing sand particles with and without cathodic protection. The most notable finding was that the relative performance of the tested materials varied by altering the testing conditions. The role of hardness in the performance of the different materials was also investigated.

AB - Erosion-corrosion is one of the most challenging material degradation processes that occur in engineering components that handle slurries. Materials that can withstand a combination of corrosive fluid with suspended particles are required to extend the service life of hydraulic equipment. High chromium cast irons are favorable for these applications as the chromium carbides improve the wear resistance and usually, good corrosion resistance is obtained. In this study, two white cast irons (a 37%Cr - austenitic matrix and 27%Cr - martensitic matrix) were evaluated along with an austenitic stainless steel (UNS S31600) and a martensitic stainless steel (UNS S42000). The experiments were carried out using a submerged jet apparatus in a testing medium of 3.5% NaCl containing sand particles with and without cathodic protection. The most notable finding was that the relative performance of the tested materials varied by altering the testing conditions. The role of hardness in the performance of the different materials was also investigated.

KW - cast iron

KW - stainless steel

KW - corrosion

UR - https://www.onepetro.org/conference-paper/NACE-2016-7723

UR - http://events.nace.org/WA/corrosion/C2016/core/index.html

M3 - Paper

ER -

Karafyllias G, Giourntas L, Galloway A, Hodgkiess T. Relative performance of two cast irons and two stainless steels under erosion-corrosion conditions. 2016. Paper presented at Corrosion 2016, Vancouver, Canada.