Abstract
Both Si and Al are known to have negligible solubility in cementite and therefore retard cementite precipitation. The effect of Si on carbides formation during martensite tempering has been extensively studied, whereas that of Al has attracted little attention. The aim of the present study is to shed light on the effect of Al on martensite tempering. Various advanced characterization techniques like FEG-SEM, TEM, in situ synchrotron XRD and APT have been employed to investigate the microstructural evolution during martensite tempering of 0.25C–2.1Mn steels with or without Al and Si additions. It is revealed that Al addition promotes ε-carbide formation, whereas Si addition has no significant effect. Al addition has weaker influence than Si addition to retard θ-carbides formation. At lower tempering temperature or short tempering time, Si addition retards more efficiently θ-carbide growth, whereas at higher temperature tempering or longer tempering time, Al addition becomes more efficient to retard θ-carbide growth. As a consequence, Si addition resists better martensite softening during tempering at lower temperature or for shorter time, whereas Al addition resists more strongly martensite softening during tempering at higher temperature or for longer time. Based on the present experimental results, mechanisms are proposed to explain the effect of Al on θ-carbide formation and growth as compared with Si.
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References
Grange RA, Hribal CR, Porter LF (1977) Hardness of tempered martensite in carbon and low-alloy steels. Metall Trans A 8:1775–1785
Lee JB, Kang N, Park JT, Ahn S-T, Park Y-D, Choi I-D, Kim K-R, Cho K-M (2011) Kinetics of carbide formation for quenching and tempering steels during high-frequency induction heat treatment. Mater Chem Phys 129:365–370
Miyamoto G, Oh JC, Hono K, Furuhara T, Maki T (2007) Effect of partitioning of Mn and Si on the growth kinetics of cementite in tempered Fe–0.6 mass%C martensite. Acta Mater 55:5027–5038
Zhu C, Xiong XY, Cerezo A, Hardwicke R, Krauss G, Smith GDW (2007) Three-dimensional atom probe characterization of alloy element partitioning in cementite during tempering of alloy steel. Ultramicroscopy 107:808–812
Zhu C, Cerezo A, Smith GDW (2009) Carbide characterization in low-temperature tempered steels. Ultramicroscopy 109:545–552
Williamson DL, Schupmann RG, Materkowski JP, Krauss G (1979) Determination of small amounts of austenite and carbide in hardened medium carbon steels by Mössbauer spectroscopy. Metall Trans A 10:379–382
Lee H-C, Krauss G (1992) Intralath carbide transition in martensitic medium carbon steels tempered between 200 and 300°C. In: Krauss G, Repas PE (eds) Fundamentals of aging and tempering in bainitic and martensitic steel products. Iron and Steel Society, Warrendale, pp 39–43
Williamson DL, Nakazawa K, Krauss G (1979) A study of the early stages of tempering in an Fe-1.2%C alloy. Metall Trans A 10:1351–1363
Hirotsu Y, Nagakura S (1974) Electron microscopy and diffraction study of the carbide precipitated at the first stage of tempering of martensitic medium carbon steel. Trans Jpn Inst Metals 15:129–134
Shi ZM, Gong W, Tomota Y, Harjo S, Li J, Chi B, Pu J (2015) Study of tempering behavior of lath martensite using in situ neutron diffraction. Mater Charact 107:29–32
Ghosh G, Olson GB (2002) Precipitation of paraequilibrium cementite: experiments, and thermodynamic and kinetic modeling. Acta Mater 50:2099–2119
Kim B, Celada C, San Martin D, Sourmail T, Rivera-Diaz-del-Castillo PEJ (2013) The effect of silicon on the nanoprecipitation of cementite. Acta Mater 61:6983–6992
Clarke AJ, Miller MK, Field RD, Coughlin DR, Gibbs PJ, Clarke KD, Alexander DJ, Powers KA, Papin PA, Krauss G (2014) Atomic and nanoscale chemical and structural changes in quenched and tempered 4340 steel. Acta Mater 77:17–27
Xia Y, Luo X, Zhong X, Zhou H, Wang C, Shi J (2016) In-situ TEM observation of cementite coarsening behavior of 5Mn steel during tempering. J Iron Steel Res Int 23:442–446
Barnard SJ, Smith GDW, Garratt-Reed AJ, Sande JV (1981) Atom probe studies: the role of silicon in tempering of steel. Low-temperature chromium diffusivity in bainite. In: Proceedings of the solid to solid phase transformations, Pittsburgh, pp 881–885
Chang L, Smith GDW (1984) The silicon effect in the tempering of martensite in steels. Le Journal de Physique Colloques 45:397–401
Song W, von Appen J, Choi P, Dronskowski R, Raabe D, Bleck W (2013) Atomic-scale investigation of ε; and θ; precipitates in bainite in 100Cr6 bearing steel by atom probe tomography and ab initio calculations. Acta Mater 61:7582–7590
Jang JH, Kim IG, Bhadeshia HKDH (2010) ε-Carbide in alloy steels: first-principles assessment. Scr Mater 63:121–123
Baker RG, Nutting J (1959) The tempering of 2 1/4 Cr-1 Mo steel after quenching and normalizing. J Iron Steel Inst 192:257–268
Babu SS, Hono K, Sakurai T (1993) APFIM studies on martensite tempering of Fe–C–Si–Mn low alloy steel. Appl Surf Sci 67:321–327
Babu SS, Hono K, Sakurai T (1994) Atom probe field ion microscopy study of the partitioning of substitutional elements during tempering of a low-alloy steel martensite. Metal Trans A 25:499–508
Thomson RC, Miller MK (1995) The partitioning of substitutional solute elements during the tempering of martensite in Cr and Mo containing steels. Appl Surf Sci 87–88:185–193
Thomson RC, Miller MK (1996) An atom probe study of cementite precipitation in autotempered martensite in an Fe–Mn–C alloy. Appl Surf Sci 94–95:313–319
Thomson RC, Miller MK (1998) Carbide precipitation in martensite during the early stages of tempering Cr- and Mo-contained low alloy steels. Acta Mater 46:2203–2213
Airey GP, Hughes TA, Mehl R (1968) The growth of cementite particles in ferrite. AIME Trans 242:1853–1863
Mukherjee T, Stumpf WE, Sellars CM, Tegart WJM (1969) Kinetics of coarsening of carbides in chromium steels at 700°C. J Iron Steel Inst 207:621–631
Sakuma T, Watanabe N, Nishizawa T (1980) The effect of alloying element on the coarsening behavior of cementite particles in ferrite. Trans JIM 21:159–168
Lesilie WC, Rauch GC (1978) Precipitation of carbides in low carbon Fe–Al–C alloys. Metall Trans A 9:343–348
Xue H, Baker TN (1993) Influence of aluminium on carbide precipitation in low carbon microalloyed steels. Mater Sci Technol 9:424–429
Park HS, Seol J-B, Lim N-S, Kim S-I, Park C-G (2015) Study of the decomposition behavior of retained austenite and the partitioning of alloying elements during tempering in CMnSiAl TRIP steels. Mater Des 82:173–180
Ayache J, Beaunier L, Boumendil J, Ehret G, Laub D (2010) Replica techniques. Sample preparation handbook for transmission electron microscopy. Springer, New York, pp 229–256
Miller MK, Russell KF (2007) Atom probe specimen preparation with a dual beam SEM/FIB miller. Ultramicroscopy 107:761–766
Girault E, Mertens A, Jacques P, Houbaert Y, Verlinden B, Humbeeck JV (2001) Comparison of the effects of silicon and aluminum on the tensile behaviour of multiphase trip-assisted steels. Scr Mater 44:885–892
Speich GR, Leslie WC (1972) Tempering of steel. Metall Mater Trans B 3:1043–1054
Shi ZM, Gong W, Tomota Y, Harjo S, Li J, Chi B, Pu J (2015) Study of tempering behavior of lath martensite using in situ neutron diffraction. Mater Character 107:29–32
Krauss G (1999) Martensite in steel: strength and structure. Mater Sci Eng, A 273–275:40–57
Iung T, Drillet J, Couturier A, Olier C (2002) Detailed study of the transformation mechanisms in ferrous TRIP aided steels. Steel Res 73:218–224
Gaye H, Lehmann J (2004) Modelling and prediction of reactions involving metals, slags and fluxes. In: VII international conference on Molten Slags Fluxes and Salts, The South African Institute of Mining and Metallurgy, pp 619–624
Owen WS (1954) The effect of silicon on the kinetics of tempering. Trans ASM 46:812–829
Barrow ATW, Rivera-Díaz-del-Castillo PEJ (2011) Nanoprecipitation in bearing steels. Acta Mater 59:7155–7167
Kim B, Boucard E, Sourmail T, San Martin D, Gey N, Rivera-Diaz-del-Castillo PEJ (2014) The influence of silicon in tempered martensite: understanding the microstructure–properties relationship in 0.5–0.6 wt% C steels. Acta Mater 68:169–178
Xia Y, Luo X, Zhong X, Zhou H, Wang C, Shi J (2016) In-situ TEM observation of cementite coarsening behavior of 5Mn steel during tempering. J Iron Steel Res Int 23:442–446
Acknowledgements
The authors would express their gratitude to Mr. Patrick Barges in ArcelorMittal Maizières for his TEM investigation work and Dr. Cédric Bellot in ACRDM (laboratoire d’Analyses, Conseils et R&D dans les Matériaux, France) for his in situ synchrotron XRD analysis work.
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Zhu, K., Shi, H., Chen, H. et al. Effect of Al on martensite tempering: comparison with Si. J Mater Sci 53, 6951–6967 (2018). https://doi.org/10.1007/s10853-018-2037-6
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DOI: https://doi.org/10.1007/s10853-018-2037-6