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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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.
Abstract
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.
참고문헌 (28)
- G. Lovicu, , Metall. Mater. Trans. A, 43, pp.4075~ (2012)
- S. Ootsuka, , Corros. Sci., 98, pp.430~ (2015)
- J. Rehrl, , Mater. Sci. Eng. A, 590, pp.360~ (2014)
- J. Venezuela, , Corros. Sci., 99, pp.98~ (2015)
- N. Winzer, , Mater. Design, 92, pp.450~ (2016)
- R. Kuziak, , Arch. Civ. Mech. Eng., 8, pp.103~ (2008)
- O. Kwon, , Mater. Sci. Forum, 638-642, pp.136~ (2010)
- J. Venezuela, , Corros. Rev, 34, pp.153~ (2016)
- Y. Nie, , Metall. Mater. Trans. A, 43A, pp.1670~ (2012)
- J. H. Ryu, , Acta Mater., 60, pp.4085~ (2012)
- A. Nagao, , Acta Mater., 74, pp.244~ (2014)
- S. Takagi, , ISIJ Int., 52, pp.316~ (2012)
- R. -H. Song, , J. Electrochem. Soc., 137, pp.1703~ (1990)
- Y. M. Zeng, , J. Electrochem. Soc., 151, pp.B291~ (2004)
- J. G. Yu, , Appl. Surf. Sci., 177, pp.129~ (2001)
- J. G. Yu, , J. Electrochem. Soc., 150, pp.B68~ (2003)
- M. Z. Yang, , J. Electrochem. Soc., 146, pp.2107~ (1999)
- L. Q. Guo, , Corros. Sci., 70, pp.140~ (2013)
- D. Wallinder, , Corros. Sci., 43, pp.1267~ (2001)
- H. Yashiro, , Corros. Sci, 40, pp.781~ (1998)
- S. Ningshen, , Corros. Sci, 48, pp.1106~ (2006)
- J. Han, , Acta Mater., 113, pp.1~ (2016)
- S. -I. Komazaki, , ISIJ Int., 43, pp.475~ (2003)
- W. -F. Chen, , Chem. Commun., 49, pp.8896~ (2013)
- S. Wirth, , Appl. Catal., B, 126, pp.225~ (2012)
- Y. Liu, , ACS Catal., 3, pp.1184~ (2013)
- C. Hubschmid, , Fresenius J. Anal. Chem., 353, pp.234~ (1995)
- C. -G. Lee, , J. Electrochem. Soc., 164, pp.C591~ (2017)