초고강도 자동차용 강의 환원정전류인가에 따른 산화 거동 변화 연구

The change in the oxidation behavior of three types of B-added ultrahigh strength martensitic steels containing Ti and Nb induced by applying constant cathodic current was investigated. In a 3% NaCl+0.3% NH 4 SCN solution, the overall polarization behavior of the three alloys was similar, and degrad...

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Published inCorrosion science and technology Vol. 16; no. 6; pp. 317 - 327
Main Authors 하헌영, Heon-young Ha, 김혜진, Hye-jin Kim, 문준오, Joonoh Moon, 이태호, Tae-ho Lee, 조효행, Hyo-haeng Jo, 이창근, Chang-geun Lee, 유병길, Byung-kil Yoo, 양원석, Won-seog Yang
Format Journal Article
LanguageKorean
Published 한국부식방식학회 31.12.2017
Subjects
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ISSN1598-6462
2288-6524
DOI10.14773/cst.2017.16.6.317

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Abstract The change in the oxidation behavior of three types of B-added ultrahigh strength martensitic steels containing Ti and Nb induced by applying constant cathodic current was investigated. In a 3% NaCl+0.3% NH 4 SCN solution, the overall polarization behavior of the three alloys was similar, and degradation of the oxide film was observed in the three alloys after applying constant cathodic current. A significant increase in the anodic current density was observed in the Nb-added alloy, while it was diminished in the Ti-added alloy. Both Ti and Nb alloying decreased the hydrogen overpotential by forming NbC and TiC particles. In addition, the thickest oxide film was formed on the Ti-added alloy, but the addition of Nb decreased the film thickness. Therefore, it was concluded that the remarkable increase in the anodic current density of Nb-added alloy induced by applying constant cathodic current density was attributed to the formation of the thinnest oxide film less protective to hydrogen absorption, and the addition of Ti effectively blocked the hydrogen absorption by forming TiC particles and a relatively thick oxide film.
AbstractList The change in the oxidation behavior of three types of B-added ultrahigh strength martensitic steels containing Ti and Nb induced by applying constant cathodic current was investigated. In a 3% NaCl+0.3% $NH_4SCN$ solution, the overall polarization behavior of the three alloys was similar, and degradation of the oxide film was observed in the three alloys after applying constant cathodic current. A significant increase in the anodic current density was observed in the Nb-added alloy, while it was diminished in the Ti-added alloy. Both Ti and Nb alloying decreased the hydrogen overpotential by forming NbC and TiC particles. In addition, the thickest oxide film was formed on the Ti-added alloy, but the addition of Nb decreased the film thickness. Therefore, it was concluded that the remarkable increase in the anodic current density of Nb-added alloy induced by applying constant cathodic current density was attributed to the formation of the thinnest oxide film less protective to hydrogen absorption, and the addition of Ti effectively blocked the hydrogen absorption by forming TiC particles and a relatively thick oxide film.
The change in the oxidation behavior of three types of B-added ultrahigh strength martensitic steels containingTi and Nb induced by applying constant cathodic current was investigated. In a 3% NaCl+0.3% NH4SCN solution,the overall polarization behavior of the three alloys was similar, and degradation of the oxide film was observedin the three alloys after applying constant cathodic current. A significant increase in the anodic current densitywas observed in the Nb-added alloy, while it was diminished in the Ti-added alloy. Both Ti and Nb alloyingdecreased the hydrogen overpotential by forming NbC and TiC particles. In addition, the thickest oxide filmwas formed on the Ti-added alloy, but the addition of Nb decreased the film thickness. Therefore, it was concludedthat the remarkable increase in the anodic current density of Nb-added alloy induced by applying constant cathodiccurrent density was attributed to the formation of the thinnest oxide film less protective to hydrogen absorption,and the addition of Ti effectively blocked the hydrogen absorption by forming TiC particles and a relativelythick oxide film. KCI Citation Count: 1
The change in the oxidation behavior of three types of B-added ultrahigh strength martensitic steels containing Ti and Nb induced by applying constant cathodic current was investigated. In a 3% NaCl+0.3% NH 4 SCN solution, the overall polarization behavior of the three alloys was similar, and degradation of the oxide film was observed in the three alloys after applying constant cathodic current. A significant increase in the anodic current density was observed in the Nb-added alloy, while it was diminished in the Ti-added alloy. Both Ti and Nb alloying decreased the hydrogen overpotential by forming NbC and TiC particles. In addition, the thickest oxide film was formed on the Ti-added alloy, but the addition of Nb decreased the film thickness. Therefore, it was concluded that the remarkable increase in the anodic current density of Nb-added alloy induced by applying constant cathodic current density was attributed to the formation of the thinnest oxide film less protective to hydrogen absorption, and the addition of Ti effectively blocked the hydrogen absorption by forming TiC particles and a relatively thick oxide film.
Author 김혜진
양원석
Heon-young Ha
유병길
문준오
Byung-kil Yoo
Joonoh Moon
Tae-ho Lee
Hyo-haeng Jo
Won-seog Yang
이창근
하헌영
이태호
Hye-jin Kim
Chang-geun Lee
조효행
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DocumentTitleAlternate 초고강도 자동차용 강의 환원정전류인가에 따른 산화 거동 변화 연구
Investigation on the Effects of Hydrogen Charging on Oxidation Behavior of Ultrahigh-Strength Automotive Steels
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ultrahigh strength martensitic steel
Nb
Ti
oxide layer formation
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SubjectTerms hydrogen overpotential
Nb
oxide layer formation
Ti
ultrahigh strength martensitic steel
금속공학
Title 초고강도 자동차용 강의 환원정전류인가에 따른 산화 거동 변화 연구
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