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 in | Corrosion science and technology Vol. 16; no. 6; pp. 317 - 327 |
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Main Authors | , , , , , , , , , , , , , , , |
Format | Journal Article |
Language | Korean |
Published |
한국부식방식학회
31.12.2017
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Subjects | |
Online Access | Get full text |
ISSN | 1598-6462 2288-6524 |
DOI | 10.14773/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. |
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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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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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