[논문]초고강도급 자동차용 강재 내 ε-carbide (Fe2.4C)가 부식 및 수소확산거동에 미치는 영향

박진성; 윤덕빈; 성환구; 김성진

doi:10.14773/cst.2021.20.5.295

초고강도급 자동차용 강재 내 ε-carbide (Fe2.4C)가 부식 및 수소확산거동에 미치는 영향
Effect of ε-carbide (Fe2.4C) on Corrosion and Hydrogen Diffusion Behaviors of Automotive Ultrahigh-Strength Steel Sheet 원문보기

Corrosion science and technology, v.20 no.5, 2021년, pp.295 - 307

박진성 (순천대학교 신소재공학과) , 윤덕빈 (순천대학교 신소재공학과) , 성환구 (포스코 기술연구원) , 김성진 (순천대학교 신소재공학과)

Abstract ▼ AI-Helper

Effects of ε-carbide (Fe2.4C) on corrosion and hydrogen diffusion behaviors of ultra-strong steel sheets for automotive application were investigated using a number of experimental and analytical methods. Results of this study showed that the type of iron carbide precipitated during tempering treatments conducted at below A1 temperatures had a significant influence on corrosion kinetics. Compared to a steel sample with cementite (Fe3C), a steel sample with ε-carbide (Fe2.4C) showed higher corrosion resistance during a long-term exposure to a neutral aqueous solution. In addition, the diffusion kinetics of hydrogen atoms formed by electrochemical corrosion reactions in the steel matrix with ε-carbide were slower than the steel matrix with cementite because of a comparatively higher binding energy of hydrogen with ε-carbide. These results suggest that designing steels with fine ε-carbide distributed uniformly throughout the matrix can be an effective technical strategy to ensure high resistance to hydrogen embrittlement induced by aqueous corrosion.

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표/그림 (16)

그림 Fig. 1. Schematic diagram of the electrochemical hydrogen permeation equipment
그림 Fig. 2. Microstructure observation of the samples using FE-SEM and TEM: (a,c) 200T and (b,d) 300T
$Fig. 3. EBSD image quality map (a,b) and phase fraction map (c,d) of the samples: (a,c) 200T and (c,d) 300T$ 그림 Fig. 3. EBSD image quality map (a,b) and phase fraction map (c,d) of the samples: (a,c) 200T and (c,d) 300T
그림 Fig. 4. (a-c) Linear polarization resistance curves of the samples, evaluated in a 3.5% NaCl solution: (a) 3 h, (b) 48 h, and (c) 144 h, and (d) change in corrosion current densities with immersion times
그림 Fig. 5. (a-c) EIS Nyquist curves of the samples, evaluated in a 3.5% NaCl solution: (a) 3 h, (b) 48 h, and (c) 144 h, and (d) change in polarization resistance with immersion times
표 Table 1. Various corrosion parameters obtained by curve-fitting to LPR data
그림 Fig. 6. Galvanic current densities between the tested samples after immersion in a 3.5% NaCl solution for 3 h
표 Table 2. Various corrosion parameters obtained by curve-fitting to EIS Nyquist plot
그림 Fig. 7. Weight loss measurement of the samples in a 3.5% NaCl solution for 168 h
그림 Fig. 8. (a,b) Cross-sectional images of the samples, which was immersed in a 3.5% NaCl solution for 168 h: (a) 200T and (b) 300T, and (c,d) magnified images of (a) and (b), respectively
그림 Fig. 9. (a-c) EBSD KAM map and (d) misorientation frequency distribution of the samples, which were tempered at 200 ºC for three difference times: (a-c) 30m T, 45m T, and 60m T, respectively
그림 Fig. 10. Break-through τ (τ_bt) and diffusion coefficient of hydrogen of the samples, which tempered at different temperatures
그림 Fig. 11. Bar chart showing the strain loss rates (%) of precharged samples (30m T and 45m T) with charging current density of -1 mA/cm² for 3 and 10 min, respectively [37]
표 Table 3. Lattice diffusivity, apparent diffusivity, and trapping parameters of hydrogen, obtained by electrochemical permeation experiment conducted at three different temperatures
그림 Fig. 12. Schematic diagram illustrating the proposed corrosion mechanism of the samples with Fe_2.4C and Fe₃C, respectively
그림 Fig. 13. Schematic diagram illustrating the proposed hydrogen diffusion/trapping mechanism of the samples with and without Fe_2.4C

참고문헌 (37)

S. Brauser, L. A. Pepke, G. Weber, and M. Rethmeier, Deformation behavior of spot-welded high strength steels for automotive application, Materials Science Engineering: A, 527, 7099 (2010). Doi: https://doi.org/10.1016/j.msea.2010.07.091

상세보기
S. L. Gibbons, R. A. Abrahams, M. W. Vaughan, R. E. Barber, R. C. Harris, R. Arroyave, and I. Karaman, Microstructural refinement in an ultra-high strength martensitic steel via equal channel angular pressing, Materials Science Engineering: A, 725, 57 (2018). Doi: https://doi.org/10.1016/j.msea.2018.04.086

상세보기
E. H. Hwang, H. G. Seong, and S. J. Kim, Effect of carbon contents on corrosion and hydrogen diffusion behaviors of ultra-strong steels for automotive applications, Korean Journal of Metals and Materials, 56, 570 (2018). Doi: https://doi.org/10.3365/KJMM.2018.56.8.570

상세보기
J. S. Park, E. H. Hwang, M. J. Lee, and S. J. Kim, Effect of tempering condition on hydrogen diffusion behavior of martensitic high-strength steel, Corrosion Science and Technology, 17, 242 (2018). Doi: https://doi.org/10.14773/cst.2018.17.5.242

원문보기 상세보기
M. M. Islam, C. Zou, A. C. T. V. Duin, and S. Raman, Interaction of hydrogen with the iron and iron carbide interfaces: a ReaxFF molecular dynamics study, Physical Chemistry Chemical Physics, 18, 761 (2015). Doi: https://doi.org/10.1039/c5cp06108c

상세보기
S. V. Brahimi, S. Yue, and K. R. Sriraman, Alloy and composition dependence of hydrogen embrittlement susceptibility in high-strength steel fasteners, Philosophical Transactions A, 375, 2098 (2017). Doi: https://doi.org/10.1098/rsta.2016.0407

상세보기
S. Thomas, N. Ott, R. F. Schaller, J. A. Yuwono, P. Volovitch, G. Sundararajan, N. V. Medhekar, K. Ogle, J. R. Scully, and N. Birbilis, The effect of absorbed hydrogen on the dissolution of steel, Heliyon, 3, e00209 (2017). Doi: http://dx.doi.org/10.1016/j.heliyon.-2016.e00209
D. Rudomilova, T. Prosek, I. Traxler, J. Faderl, G. Luckeneder, G. S. Aichhorn, and A. Muhr, Critical assessment of the effect of atmospheric corrosion induced hydrogen on mechanical properties of advanced high strength steel, Metals, 11, 44 (2020). Doi: https://doi.org/10.3390/met11010044

상세보기
H. Xu, X. Xia, L. Hua, Y. Sun, and Y. Dai, Evaluation of hydrogen embrittlement susceptibility of temper embrittled 2.24Cr-1Mo steel by SSRT method, Engineering Failure Analysis, 19, 43 (2012). Doi: https://doi.org/10.1016/j.engfailanal.2011.08.008

상세보기
W. S. Yang, J. W. Seo, and S. H. Ahn, A study on hydrogen embrittlement research on automotive steel sheets, Corrosion Science and Technology, 17, 193 (2018). Doi: http://dx.doi.org/10.14773/cst.2018.17.4.193

원문보기 상세보기
J. S. Park, H. J. Lee, and S. J. Kim, Electrochemical corrosion and hydrogen diffusion behaviors of Zn and Al coated hot-press forming steel sheets in chloride containing environments, Korean Journal of Materials Research, 28, 286 (2018). Doi: http://dx.doi.org/-10.3740/MRSK.2018.28.5.286

원문보기 상세보기
S. A. J. Forsik, P. R. D. D. Castillo, Encyclopedia of Iron, Steel, and Their Alloys, 1st ed., pp. 2169 - 2181, Taylor & Francis (2016). Doi: https://doi.org/10.1081/E-EISA120052026
S. W. Thompson, A two-tilt analysis of electron diffraction patterns from transition-iron-carbide precipitates formed during tempering of 4340 steel, Metallography, Microstructure, and Analysis, 5, 367 (2016). Doi: https://doi.org/10.1007/s13632-016-0302-0

상세보기
C. Wagner and W. Traud, The original formulation of the mixed potential concept and the basis theory of corrosion of a pure metal, Zeitschrift Fur Elektrochemie und Angewandte Physikalische Chemie, 44, 391 (1938). Doi: https://doi.org/10.1002/bbpc.19380440702

상세보기
M. Stren and A. L. Geary, Electrochemical Polarization: I. A Theoretical Analysis of the Shape of Polarization Curves, Journal of Electrochemical Society, 104, 56 (1957). Doi: https://doi.org/10.1149/1.2428496

상세보기
ISO 17081, Method of Measurement of Hydrogen Permeation and Determination of Hydrogen Uptake and Transport in Metals by an Electrochemical Technique, Switzerland: ISO Standard (2004).
M. Hunkel, J. Dong, J. Epp, D. Kaiser, S. Dietrich, V. Schulze, A. Rajaei, B. Hallstedt, and C. Broeckmann, Comparative study of the tempering behaviors of different martensitic steels by mean of in-situ diffractometry and dilatometry, Materials, 13, 5058 (2020). Doi: https://doi.org/10.3390/ma13225058

상세보기
V. Massardier, M. Goune, D. Fabregue, A. Selouane, T. Douillard, and O. Bouaziz, Evolution of microstructure and strength during the ultra-fast tempering of Fe-Mn-C martensitic steels, Journal of Materials Science, 49, 7782 (2014). Doi: https://doi.org/10.1007/s10853-014-8489-4

상세보기
J. Krawczyk, P. Bala, and J. Pacyna, The effect of carbide precipitate morphology on fracture toughness in low-tempered steels containing Ni, Journal of Microscopy, 237, 411 (2010). Doi: https://doi.org/10.1111/j.1365-2818.2009.03275.x.

상세보기
X. Zhu, W. Li, T. Y. Hsu, S. Zhou, L. Wang, and X. Jin, Improved resistance to hydrogen embrittlement in a high-strength steel by quenching-partitioning-tempering treatment, Scripta Materialia, 97, 21 (2015). Doi: https://doi.org/10.1016/j.scriptamat.2014.10.030

상세보기
A. Nazarov, V. Vivier, F. Vucko, and D. Thierry, Effect of tensile stress on the passivity breakdown and repassivation of AISI 304 stainless steel: A scanning kelvin probe and scanning electrochemical microscopy study, Journal of The Electrochemical Society, 166, C3207 (2019). Doi: https://doi.org/10.1149/2.0251911jes

상세보기
H. Miyamoto, M. Yuasa, M. Rifai, and H. Fujiwara, Corrosion behavior of severely deformed pure and single-phase materials, Materials transaction, 60, 1243 (2019). Doi: https://doi.org/10.2320/matertrans.MF201935

상세보기
D. Clover, B. Kinsella, B. Pejcic, and R. de Marco, The influence of microstructure on the corrosion rate of various carbon steel, Journal of Applied Electrochemistry, 35, 139 (2005). Doi: https://doi.org/10.1007/s10800-004-6207-7

상세보기
J. S. Park, H. G. Seong, and S. J. Kim, Effect of heat treatment conditions on corrosion and hydrogen diffusion behaviors of ultra-strong steel used for automotive applications, Corrosion Science and Technology, 18, 267 (2019). Doi: https://doi.org/10.14773/CST.2020.19.2.100

원문보기 상세보기
S. Nesic, M. Nordsveen, R. Nyborg, and A. Stangeland, A mechanistic model for carbon dioxide corrosion of mild steel in the presence of protective iron carbonate films-part 2: a numerical experiment, Corrosion, 59, 489 (2003). Doi: https://doi.org/10.5006/1.3277579

상세보기
D. A. Lopez, W. H. Schreiner, S. R. de Sanchez, and S. N. Simison, The influence of carbon steel microstructure on corrosion layers an XPS and SEM characterization, Applied Surface Science, 207, 69 (2003). Doi: https://doi.org/10.1016/s0169-4332(02)01218-7

상세보기
J. Flis, H. W. Pickering, and K. Osseo-Asare, Interpretation of impedance data for reinforcing steel in alkaline solution contatining chlorides and acetates, Electrochemica Acta, 43, 1921 (1998). Doi: https://doi.org/10.1016/S0013-4686(97)10004-4

상세보기
S. B. Shin, S. J. Song, Y. W. Shin, J. G. Kim, B. J. Park, and Y. C. Suh, Effect of molybdenum on the corrosion of low alloy steels in synthetic seawater, Materials Transactions, 57, 2116 (2016). Doi: https://doi.org/10.2320/matertrans.M2016222

상세보기
E. Serra, A. Perujo, and G. Benamati, Influence of traps on the deuterium behavior in the low activation martensitic steels F82H and Batman, Journal of Nuclear Materials, 245, 108 (1997). Doi: https://doi.org/10.1016/S0022-3115(97)00021-4

상세보기
H. K. D. H. Bhadeshia, Prevention of hydrogen embrittlement in steels, ISIJ International, 56, 24 (2016). Doi: http://dx.doi.org/10.2355/isijinternational.ISIJINT-2015-430

상세보기
B. D. Craig, On the elastic interaction of hydrogen with precipitates in lath martensite, Acta Metallurgica, 25, 1027 (1977). Doi: https://doi.org/10.1016/0001-6160(77)90131-6

상세보기
K. Kiuchi and R. B. McLellan, The solubility and diffusivity of hydrogen in well-annealed and deformed iron, Acta Metallurgica, 31, 961 (1983). Doi: https://doi.org/10.1016/0001-6160(83)90192-X

상세보기
W. Y. Choo and J. Y. Lee, Hydrogen trapping phenomena in carbon steel, Journal of Materials Science, 17, 1930 (1982). Doi: https://doi.org/10.1007/BF00540409

상세보기
A. McNabb and P. K. Foster, A new analysis of the diffusion of hydrogen in iron and ferritic steels, Transaction of the Metallurgical Society of AIME, 277, 618 (1963).
G. W. Hong and J. Y. Lee, The interaction of hydrogen and the cementite-ferrite interface in carbon steel, Journal of Materials Science, 18, 271 (1983). Doi: https://doi.org/10.1007/-BF00543835

상세보기
I. M. Bernstein, The effect of hydrogen on the deformation of iron, Scripta Metallurgica, 8, 343 (1974). Doi: https://doi.org/10.1016/0036-9748(74)90136-7

상세보기
S. J. Kim, E. H. Hwang, J. S. Park, S. M. Ryu, D. W. Yun, and H. G. Seong, Inhibiting hydrogen embrittlement in ultra-strong steels for automotive application by Ni-alloying, npj Materials Degradation, 3, 12 (2019). Doi: https://doi.org/10.1038/s41529-019-0074-5

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