Corrosion of high-alloy stainless steels in the marine environment

Outi Varjonen

Research output: Book/ReportReport

Abstract

High-alloyed stainless steels have been developed by increasing the amount of chromium up to 25 % and that of molybdenum up to 3.0 % in the stainless steels. They are widely applied in the sea-water environment where the most important corrosion types are crevice corrosion and galvanic corrosion possibly induced by microbial slime layer formation. In this study the microbial slime layer of the high-alloyed stainless steels is investigated by transmission electron microscope. The corrosion potential of the alloys is measured during the sea-water exposure. Based on the above experiments the corrosion potential of the alloys is predominantly increased by the adherent slime layer. The bacterial layer of the alloys consists of several microbial organisms and by-deposited metal-ions or metallic compounds.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages58
ISBN (Print)951-38-3300-3
Publication statusPublished - 1989
MoE publication typeD4 Published development or research report or study

Publication series

SeriesValtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports
Number589
ISSN0358-5077

Fingerprint

marine environments
stainless steels
corrosion
sea water
organisms
molybdenum
chromium
metal ions
cracks
electron microscopes

Keywords

  • stainless steels
  • molybdenum
  • corrosion tests
  • corrosion
  • sea water corrosion

Cite this

Varjonen, O. (1989). Corrosion of high-alloy stainless steels in the marine environment. Espoo: VTT Technical Research Centre of Finland. Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports, No. 589
Varjonen, Outi. / Corrosion of high-alloy stainless steels in the marine environment. Espoo : VTT Technical Research Centre of Finland, 1989. 58 p. (Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports; No. 589).
@book{ca707f56ae114216a71d6be3863b71af,
title = "Corrosion of high-alloy stainless steels in the marine environment",
abstract = "High-alloyed stainless steels have been developed by increasing the amount of chromium up to 25 {\%} and that of molybdenum up to 3.0 {\%} in the stainless steels. They are widely applied in the sea-water environment where the most important corrosion types are crevice corrosion and galvanic corrosion possibly induced by microbial slime layer formation. In this study the microbial slime layer of the high-alloyed stainless steels is investigated by transmission electron microscope. The corrosion potential of the alloys is measured during the sea-water exposure. Based on the above experiments the corrosion potential of the alloys is predominantly increased by the adherent slime layer. The bacterial layer of the alloys consists of several microbial organisms and by-deposited metal-ions or metallic compounds.",
keywords = "stainless steels, molybdenum, corrosion tests, corrosion, sea water corrosion",
author = "Outi Varjonen",
year = "1989",
language = "English",
isbn = "951-38-3300-3",
series = "Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports",
publisher = "VTT Technical Research Centre of Finland",
number = "589",
address = "Finland",

}

Varjonen, O 1989, Corrosion of high-alloy stainless steels in the marine environment. Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports, no. 589, VTT Technical Research Centre of Finland, Espoo.

Corrosion of high-alloy stainless steels in the marine environment. / Varjonen, Outi.

Espoo : VTT Technical Research Centre of Finland, 1989. 58 p. (Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports; No. 589).

Research output: Book/ReportReport

TY - BOOK

T1 - Corrosion of high-alloy stainless steels in the marine environment

AU - Varjonen, Outi

PY - 1989

Y1 - 1989

N2 - High-alloyed stainless steels have been developed by increasing the amount of chromium up to 25 % and that of molybdenum up to 3.0 % in the stainless steels. They are widely applied in the sea-water environment where the most important corrosion types are crevice corrosion and galvanic corrosion possibly induced by microbial slime layer formation. In this study the microbial slime layer of the high-alloyed stainless steels is investigated by transmission electron microscope. The corrosion potential of the alloys is measured during the sea-water exposure. Based on the above experiments the corrosion potential of the alloys is predominantly increased by the adherent slime layer. The bacterial layer of the alloys consists of several microbial organisms and by-deposited metal-ions or metallic compounds.

AB - High-alloyed stainless steels have been developed by increasing the amount of chromium up to 25 % and that of molybdenum up to 3.0 % in the stainless steels. They are widely applied in the sea-water environment where the most important corrosion types are crevice corrosion and galvanic corrosion possibly induced by microbial slime layer formation. In this study the microbial slime layer of the high-alloyed stainless steels is investigated by transmission electron microscope. The corrosion potential of the alloys is measured during the sea-water exposure. Based on the above experiments the corrosion potential of the alloys is predominantly increased by the adherent slime layer. The bacterial layer of the alloys consists of several microbial organisms and by-deposited metal-ions or metallic compounds.

KW - stainless steels

KW - molybdenum

KW - corrosion tests

KW - corrosion

KW - sea water corrosion

M3 - Report

SN - 951-38-3300-3

T3 - Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports

BT - Corrosion of high-alloy stainless steels in the marine environment

PB - VTT Technical Research Centre of Finland

CY - Espoo

ER -

Varjonen O. Corrosion of high-alloy stainless steels in the marine environment. Espoo: VTT Technical Research Centre of Finland, 1989. 58 p. (Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports; No. 589).