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Investigation on the formation mechanism of ordered carbide (FeMn)3AlC in the Al added twinning-induced plasticity steels

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Abstract

The spinodal composition zone in Al added Fe-Mn-Al-C twinning-induced plasticity (TWIP) steels can be determined by contents of Al and C and aging temperature together, based on the thermodynamic analysis. Precipitation of ordered (FeMn)3AlC carbide by the mechanism of spinodal decomposition occurs in the C-rich and Al-rich zone with low aging temperature. Increase of aging temperature shrinks spinodal composition zone to the high Al and C contents. As a result, the precipitation of (FeMn)3AlC carbide alters from spinodal decomposition to classical nucleation-growth manner gradually. Further calculation indicates that the diffusion of Al can play a key role in determining the growth rate of (FeMn)3AlC carbide at high aging temperature.

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References

  1. KIM H, SUH D W, KIM N J. Fe-Al-Mn-C lightweight structural alloys: A review on the microstructures and mechanical properties [J]. Science and Technology of Advanced Materials, 2013, 14(1): 1–11.

    Article  Google Scholar 

  2. WANG C S, HWANG C N, CHAO C G, et al. Phase transitions in an Fe-9Al-30Mn-2.0C alloy [J]. Scripta Materialia, 2007, 57(6): 809–812.

    Article  Google Scholar 

  3. CHOO W K, KIM J H, YOON J C. Microstructural change in austenitic Fe-30. 0wt%Mn-7. 8wt%Al-1. 3wt%C initiated by spinodal decomposition and its influence on mechanical properties [J]. Acta Materialia, 1997, 45(12): 4877–4885.

    Article  Google Scholar 

  4. HAN K H, CHOO W K. Phase decomposition of rapidly solidified Fe-Mn-AI-C austenitic alloys [J]. Metallurgical Transactions A, 1989, 20(2): 205–214.

    Article  Google Scholar 

  5. KIMURA Y, HAYASHI K, HANDA K, et al. Microstructural control for strengthening the α-Fe/E21-(Fe, Mn)3AlCx alloys [J]. Materials Science and Engineering A, 2002, 329/330/331(6): 680–685.

    Article  Google Scholar 

  6. ARDELL A J, NICHOLSON R B. On the modulated structure of aged Ni-Al alloys: With an appendix on the elastic interaction between inclusions by J. D. Eshelby [J]. Acta Metallurgica, 1966, 14(10): 1295–1309.

    Article  Google Scholar 

  7. RIOJA R J, LAUGHLIN D E. The early stages of GP zone formation in naturally aged Al-4wt pct Cu alloys [J]. Metallurgical Transactions A, 1977, 8(8): 1257–1261.

    Article  Google Scholar 

  8. JING Y J, LI C R, DU Z M, et al. The thermodynamic analysis of Guinier-Preston zones in aged supersaturated Al-Cu alloys [J]. Computer Coupling of Phase Diagrams and Thermochemistry, 2008, 32(1): 164–170.

    Article  Google Scholar 

  9. JIANG B H, WAGNER R. TEM study of modulated structure during initial transformation in Ni-Cu-x (x = Si, Cr) alloys [J]. Acta Metallurgica Sinica, 1986, 22(6): 52–57 (in Chinese).

    Google Scholar 

  10. JIANG B H, ZHANG M H, WEI Q, et al. Thermodynamic criterion of spinodal decomposition in ternary systems [J]. Acta Metallurgica Sinica, 1990, 26(5): 303–309 (in Chinese).

    Google Scholar 

  11. DINSDALE A T. SGTE data for pure elements [J]. Computer Coupling of Phase Diagrams and Thermochemistry, 1991, 15(4): 317–425.

    Article  Google Scholar 

  12. TANAKA T, AARONSON H I, ENOMOTO M. Calculations of phase boundaries in Fe-C-X1-X2 systems from the central atoms model [J]. Metallurgical and Materials Transactions A, 1995, 26(3): 535–545.

    Article  Google Scholar 

  13. SIGWORTH G K, ELLIOTT J F. The thermodynamics of liquid dilute iron alloys [J]. Metal Science, 1974, 8(1): 298–310.

    Article  Google Scholar 

  14. ZHANG G H, WEI R, ENOMOTO M, et al. Growth kinetics of proeutectoid ferrite in Fe-0. 1C-1. 5Mn-1Si quaternary and Fe-0. 1C-1. 5Mn-1Si-0. 2Al quinary alloys [J]. Metallurgical and Materials Transactions A, 2012, 43(4): 833–842.

    Article  Google Scholar 

  15. JERZAK W, KALICKA Z. Activity coefficients of manganese, silicon and aluminum in iron, nickel and Fe-Ni alloys [J]. Archives of Metallurgy and Materials, 2010, 55(2): 441–447.

    Google Scholar 

  16. CAHN J W. Spinodal decomposition [J]. Transactions of the Metallurgical Society of AIME, 1968, 242(1): 166–180.

    Google Scholar 

  17. HU G X, CAI X, RONG Y H. Fundamentals of materials science [M]. Shanghai: Shanghai Jiao Tong University Press, 2011: 151 (in Chinese).

    Google Scholar 

  18. HE Z P, HE Y L, GAO Y, et al. Computer simulation of Fe-Al-Si system diffusion couples [J]. Journal of Materials Science and Technology, 2011, 27(8): 729–734.

    Article  Google Scholar 

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Correspondence to Zhenghong Guo  (郭正洪).

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Foundation item: the National Natural Science Foundation of China (No. 51371117)

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Yang, L., Huang, F., Guo, Z. et al. Investigation on the formation mechanism of ordered carbide (FeMn)3AlC in the Al added twinning-induced plasticity steels. J. Shanghai Jiaotong Univ. (Sci.) 21, 406–410 (2016). https://doi.org/10.1007/s12204-016-1739-7

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  • DOI: https://doi.org/10.1007/s12204-016-1739-7

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