Effects of aluminum on the corrosion behavior of 16%Cr ODS ferritic steels in a nitric acid solution

Jerome Isselin; Ryuta Kasada; Akihiko Kimura

doi:10.3327/jnst.48.169

Effects of aluminum on the corrosion behavior of 16%Cr ODS ferritic steels in a nitric acid solution

Jerome Isselin, Ryuta Kasada, Akihiko Kimura

Materials Design Division

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

The potentiodynamic polarization behaviors of 16Cr-4Al and 16Cr ODS steels in 1M HNO₃ solution was investigated. The mixtures of element powders were mechanically alloyed in an attrition type ball mill. The resulting mechanically alloyed powders were sealed in cans and degassed at 673K in a vacuum of 0.1 Pa. The 16Cr ODS steel presented the lowest OCP at around -0.31V with a passivity region that started at around 0.35V, while the OCP of 16Cr-4Al ODS steel was around 0V and its passivity region started at around 0.2V. The 16Cr ODS steel had the highest value at 0.1 mA/cm² and the 16Cr-4Al ODS steel had the second lowest value following the Inconel. The 16Cr ODS showed a large fluctuation during the passivation stage. The 16Cr-4Al-ODS steel showed good corrosion resistance in nitric acid solution. The results showed that the pitting corrosion occurred during the polarization but there was no trace of intergranular corrosion.

Original language	English
Pages (from-to)	169-171
Number of pages	3
Journal	journal of nuclear science and technology
Volume	48
Issue number	2
DOIs	https://doi.org/10.3327/jnst.48.169
Publication status	Published - 2011 Feb

Keywords

Nitric acid solution
ODS ferritic steel
Polarization curve

ASJC Scopus subject areas

Nuclear and High Energy Physics
Nuclear Energy and Engineering

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title = "Effects of aluminum on the corrosion behavior of 16%Cr ODS ferritic steels in a nitric acid solution",

abstract = "The potentiodynamic polarization behaviors of 16Cr-4Al and 16Cr ODS steels in 1M HNO3 solution was investigated. The mixtures of element powders were mechanically alloyed in an attrition type ball mill. The resulting mechanically alloyed powders were sealed in cans and degassed at 673K in a vacuum of 0.1 Pa. The 16Cr ODS steel presented the lowest OCP at around -0.31V with a passivity region that started at around 0.35V, while the OCP of 16Cr-4Al ODS steel was around 0V and its passivity region started at around 0.2V. The 16Cr ODS steel had the highest value at 0.1 mA/cm2 and the 16Cr-4Al ODS steel had the second lowest value following the Inconel. The 16Cr ODS showed a large fluctuation during the passivation stage. The 16Cr-4Al-ODS steel showed good corrosion resistance in nitric acid solution. The results showed that the pitting corrosion occurred during the polarization but there was no trace of intergranular corrosion.",

keywords = "Nitric acid solution, ODS ferritic steel, Polarization curve",

author = "Jerome Isselin and Ryuta Kasada and Akihiko Kimura",

note = "Funding Information: The present study includes the result of {\textquoteleft}{\textquoteleft}R&D of corrosion-resistant super ODS steel for highly efficient nuclear systems{\textquoteright}{\textquoteright} entrusted to Kyoto University by the Ministry of Education, Culture, Sports, Science and Technology of Japan (MEXT).",

year = "2011",

month = feb,

doi = "10.3327/jnst.48.169",

language = "English",

volume = "48",

pages = "169--171",

journal = "Journal of Nuclear Science and Technology",

issn = "0022-3131",

publisher = "Atomic Energy Society of Japan",

number = "2",

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TY - JOUR

T1 - Effects of aluminum on the corrosion behavior of 16%Cr ODS ferritic steels in a nitric acid solution

AU - Isselin, Jerome

AU - Kasada, Ryuta

AU - Kimura, Akihiko

N1 - Funding Information: The present study includes the result of ‘‘R&D of corrosion-resistant super ODS steel for highly efficient nuclear systems’’ entrusted to Kyoto University by the Ministry of Education, Culture, Sports, Science and Technology of Japan (MEXT).

PY - 2011/2

Y1 - 2011/2

N2 - The potentiodynamic polarization behaviors of 16Cr-4Al and 16Cr ODS steels in 1M HNO3 solution was investigated. The mixtures of element powders were mechanically alloyed in an attrition type ball mill. The resulting mechanically alloyed powders were sealed in cans and degassed at 673K in a vacuum of 0.1 Pa. The 16Cr ODS steel presented the lowest OCP at around -0.31V with a passivity region that started at around 0.35V, while the OCP of 16Cr-4Al ODS steel was around 0V and its passivity region started at around 0.2V. The 16Cr ODS steel had the highest value at 0.1 mA/cm2 and the 16Cr-4Al ODS steel had the second lowest value following the Inconel. The 16Cr ODS showed a large fluctuation during the passivation stage. The 16Cr-4Al-ODS steel showed good corrosion resistance in nitric acid solution. The results showed that the pitting corrosion occurred during the polarization but there was no trace of intergranular corrosion.

AB - The potentiodynamic polarization behaviors of 16Cr-4Al and 16Cr ODS steels in 1M HNO3 solution was investigated. The mixtures of element powders were mechanically alloyed in an attrition type ball mill. The resulting mechanically alloyed powders were sealed in cans and degassed at 673K in a vacuum of 0.1 Pa. The 16Cr ODS steel presented the lowest OCP at around -0.31V with a passivity region that started at around 0.35V, while the OCP of 16Cr-4Al ODS steel was around 0V and its passivity region started at around 0.2V. The 16Cr ODS steel had the highest value at 0.1 mA/cm2 and the 16Cr-4Al ODS steel had the second lowest value following the Inconel. The 16Cr ODS showed a large fluctuation during the passivation stage. The 16Cr-4Al-ODS steel showed good corrosion resistance in nitric acid solution. The results showed that the pitting corrosion occurred during the polarization but there was no trace of intergranular corrosion.

KW - Nitric acid solution

KW - ODS ferritic steel

KW - Polarization curve

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