Abstract
Developing lightweight and high-strength steel for the automotive industry is particularly important due to reduced fuel efficiency and maintaining or improving passenger safety. The effects of Al content and solution treatment on microstructure, tensile properties, and corrosion resistance of Fe–Mn–Al–C low density steel were analyzed. The results show that the addition of Al reduces the density of steel, and in the low-density steel of Fe–Mn–Al–C, with the increase of Al content, the microstructure of low-density steel is refined, and the strain hardening rate is significantly improved, and the corrosion resistance of the material is enhanced. After the solution treatment of Fe-28Mn–10Al–C steel, the grain growth occurred obviously, and the tensile strength decreased from 1038 MPa to 826 MPa, but the elongation increased from 42.9 to 62.9%. The strong plastic product of low density steel reached 51.95 GPa %, and the solution treatment enhanced the corrosion resistance of Fe–28Mn–10Al–C steel.
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References
Rahnama A, Dashwood R, Sridhar S (2017) A phase-field method coupled with CALPHAD for the simulation of ordered κ-carbide precipitates in both disordered γ and α phases in low density steel. Comp Mater Sci 126:152–159
Chen S, Rana R, Haldar A et al (2017) Current state of Fe–Mn–Al–C low density steels. Prog Mater Sci 89:345–391
Chu CM, Huang H, Kao PW et al(1994) Effect of alloying chemistry on the lattice constant of austenitic Fe–Mn–Al–C alloys. Scripta Metal Mater 30(4):505–508
Lehnhoff GR, Findley KO, Cooman BCD (2014) The influence of silicon and aluminum alloying on the lattice parameter and stacking fault energy of austenitic steel. Scripta Mater 92:19–22
Song H, Yoo J, Kim SH et al (2017) Novel ultra-high-strength Cu-containing medium-Mn duplex lightweight steels. Acta Mater 135:215–225
Yang MX, Yuan FP, Xie QG et al (2016) Strain hardening in Fe-16Mn-10Al-0.86C-5Ni high specific strength steel. Acta Mater 109:213–222
Castan C, Montheillet F, Perlade A (2013) Dynamic recrystallization mechanisms of an Fe–8% Al low density steel under hot rolling conditions. Scripta Mater 68:360–364
Zargaran A, Kim H, Kwak JH et al (2014) Effects of Nb and C additions on the microstructure and tensile properties of lightweight ferritic Fe–8Al–5Mn alloy. Scripta Mater 89:37–40
Lee K, Park SJ, Lee J et al (2015) Effect of aging treatment on microstructure and intrinsic mechanical behavior of Fe–31.4Mn–11.4Al–0.89C lightweight steel. J Alloy Compd 656:805–811
Dey P, Nazarov R, Dutta B et al (2017) Ab initio explanation of disorder and off-stoichiometry in Fe–Mn–Al–C kappa carbides. Phys Rev B 95(10):104–108
Chen SQ, Wang P, Zhang D (2016) The influence of sulphate-reducing bacteria on heterogeneous electrochemical corrosion behavior of Q235 carbon steel in seawater. Mater Corros 67(4):340–351
Shen D, Li G, Guo C et al (2013). Microstructure and corrosion behavior of micro-arc oxidation coating on 6061 aluminum alloy pre-treated by high-temperature oxidation. Appl Surf Sci 287(24):451–456
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Ma, T., Li, H., Gao, J., Li, Y. (2020). Effect of Al Content and Solution Treatment on Tensile and Corrosion Resistance of Fe–Mn–Al–C Low-Density Steel. In: TMS 2020 149th Annual Meeting & Exhibition Supplemental Proceedings. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-36296-6_50
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DOI: https://doi.org/10.1007/978-3-030-36296-6_50
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