General corrosion and SCC tests on ODS steels in supercritical water

Aki Toivonen; Sami Penttilä

General corrosion and SCC tests on ODS steels in supercritical water

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Abstract

General corrosion tests and slow strain rate tensile tests (SSRT) were done on 9-20% Cr oxide dispersion strengthened (ODS) steels in supercritical water at 550 and 650oC with 100-150 ppb dissolved oxygen. Based on the results, Al-alloyed high Cr ODS steels PM2000 and MA956 have superior corrosion resistance when compared to 9-14% Cr ODS steels. In SCW at 550oC and above, it is considered that the minimum Cr-content for thin walled components should be higher than 14%. The results indicate that the ODS steels are less susceptible to stress corrosion cracking (SCC) than austenitic stainless steels or Ni-base alloys in supercritical water. However, more extensive studies with different water chemistries and strain rates should be made.

Original language	English
Title of host publication	Baltica IX. International Conference on Life Management and Maintenance for Power Plants
Editors	Pertti Auerkari, Juha Veivo
Place of Publication	Espoo
Publisher	VTT Technical Research Centre of Finland
Pages	174-193
ISBN (Print)	978-951-38-8025-5, 978-951-38-8026-2
Publication status	Published - 2013
MoE publication type	A4 Article in a conference publication
Event	BALTICA IX - International Conference on Life Management and Maintenance for Power Plants - Helsinki-Stockholm, Finland Duration: 11 Jun 2013 → 13 Jun 2013

Publication series

Series	VTT Technology
Number	106
ISSN	2242-1211

Conference

Conference	BALTICA IX - International Conference on Life Management and Maintenance for Power Plants
Country/Territory	Finland
City	Helsinki-Stockholm
Period	11/06/13 → 13/06/13

Access to Document

https://publications.vtt.fi/pdf/technology/2013/T106.pdf#page=176

1 Book (editor)

Baltica IX: International Conference on Life Management and Maintenance for Power Plants
Auerkari, P. (Editor) & Veivo, J. (Editor), 2013, Espoo: VTT Technical Research Centre of Finland. 683 p. (VTT Technology; No. 106).
Research output: Book/Report › Book (editor) › Scientific › peer-review

Open Access

Cite this

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title = "General corrosion and SCC tests on ODS steels in supercritical water",

abstract = "General corrosion tests and slow strain rate tensile tests (SSRT) were done on 9-20% Cr oxide dispersion strengthened (ODS) steels in supercritical water at 550 and 650oC with 100-150 ppb dissolved oxygen. Based on the results, Al-alloyed high Cr ODS steels PM2000 and MA956 have superior corrosion resistance when compared to 9-14% Cr ODS steels. In SCW at 550oC and above, it is considered that the minimum Cr-content for thin walled components should be higher than 14%. The results indicate that the ODS steels are less susceptible to stress corrosion cracking (SCC) than austenitic stainless steels or Ni-base alloys in supercritical water. However, more extensive studies with different water chemistries and strain rates should be made.",

author = "Aki Toivonen and Sami Penttil{\"a}",

year = "2013",

language = "English",

isbn = "978-951-38-8025-5",

series = "VTT Technology",

publisher = "VTT Technical Research Centre of Finland",

number = "106",

pages = "174--193",

editor = "Pertti Auerkari and Juha Veivo",

booktitle = "Baltica IX. International Conference on Life Management and Maintenance for Power Plants",

address = "Finland",

note = "BALTICA IX - International Conference on Life Management and Maintenance for Power Plants ; Conference date: 11-06-2013 Through 13-06-2013",

}

Toivonen, A & Penttilä, S 2013, General corrosion and SCC tests on ODS steels in supercritical water. in P Auerkari & J Veivo (eds), Baltica IX. International Conference on Life Management and Maintenance for Power Plants. VTT Technical Research Centre of Finland, Espoo, VTT Technology, no. 106, pp. 174-193, BALTICA IX - International Conference on Life Management and Maintenance for Power Plants, Helsinki-Stockholm, Finland, 11/06/13. <https://publications.vtt.fi/pdf/technology/2013/T106.pdf#page=176>

General corrosion and SCC tests on ODS steels in supercritical water. / Toivonen, Aki; Penttilä, Sami.
Baltica IX. International Conference on Life Management and Maintenance for Power Plants. ed. / Pertti Auerkari; Juha Veivo. Espoo: VTT Technical Research Centre of Finland, 2013. p. 174-193 (VTT Technology; No. 106).

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

TY - GEN

T1 - General corrosion and SCC tests on ODS steels in supercritical water

AU - Toivonen, Aki

AU - Penttilä, Sami

PY - 2013

Y1 - 2013

N2 - General corrosion tests and slow strain rate tensile tests (SSRT) were done on 9-20% Cr oxide dispersion strengthened (ODS) steels in supercritical water at 550 and 650oC with 100-150 ppb dissolved oxygen. Based on the results, Al-alloyed high Cr ODS steels PM2000 and MA956 have superior corrosion resistance when compared to 9-14% Cr ODS steels. In SCW at 550oC and above, it is considered that the minimum Cr-content for thin walled components should be higher than 14%. The results indicate that the ODS steels are less susceptible to stress corrosion cracking (SCC) than austenitic stainless steels or Ni-base alloys in supercritical water. However, more extensive studies with different water chemistries and strain rates should be made.

AB - General corrosion tests and slow strain rate tensile tests (SSRT) were done on 9-20% Cr oxide dispersion strengthened (ODS) steels in supercritical water at 550 and 650oC with 100-150 ppb dissolved oxygen. Based on the results, Al-alloyed high Cr ODS steels PM2000 and MA956 have superior corrosion resistance when compared to 9-14% Cr ODS steels. In SCW at 550oC and above, it is considered that the minimum Cr-content for thin walled components should be higher than 14%. The results indicate that the ODS steels are less susceptible to stress corrosion cracking (SCC) than austenitic stainless steels or Ni-base alloys in supercritical water. However, more extensive studies with different water chemistries and strain rates should be made.

M3 - Conference article in proceedings

SN - 978-951-38-8025-5

SN - 978-951-38-8026-2

T3 - VTT Technology

SP - 174

EP - 193

BT - Baltica IX. International Conference on Life Management and Maintenance for Power Plants

A2 - Auerkari, Pertti

A2 - Veivo, Juha

PB - VTT Technical Research Centre of Finland

CY - Espoo

T2 - BALTICA IX - International Conference on Life Management and Maintenance for Power Plants

Y2 - 11 June 2013 through 13 June 2013

ER -

General corrosion and SCC tests on ODS steels in supercritical water

Abstract

Publication series

Conference

Access to Document

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Research output

Baltica IX: International Conference on Life Management and Maintenance for Power Plants

Cite this