Abstract
Alloys of the FeMnAlC system have been extensively studied in recent years, and perhaps their more attractive aspect is the possibility of obtaining different combinations of mechanical strength, ductility, and fracture toughness over a wide temperature range. For structural purposes, a good combination of mechanical strength and fracture toughness is desirable, and so far the most commonly used treatment is that involving quenching from temperatures within the austenitic field and subsequent aging for 15 hours within 500 °C to 600 °C. The resulting hardness and mechanical strength are high, but fracture behavior may be unacceptable for critical applications. Experiments concerning controlled cooling are under way, as an attempt to produce a good combination of strength and fracture toughness. In this communication, we discuss a specific feature of fracture behavior revealed by specimens submitted to one of the processing conditions under study.
References
O. Acselrad, E.M. Silva, I.S. Kalashnikov, and L.C. Pereira: Metall. Mater. Trans. A, 2002, vol. 33A, pp. 3569–73.
K. Sato, K. Tagawa, and Y. Inoue: Scripta Metall., 1988, vol. 22 (6), pp. 899–902.
K. Sato, K. Tagawa, and Y. Inoue: Mater. Sci. Eng., 1989, vol. A111, pp. 45–50.
G.L. Kayak: Met. Sci. Heat Treatment, 1969, vol. 2, pp. 95–97.
W.L. Server: J. Test. Eval., 1978, vol. 8, pp. 29–34.
L.D. Chumakova, I.S. Kalashnikov, and V.S. Litvinov: Phys. Met. Metallogr., 1989, vol. 67 (2), pp. 107–11.
P. Müllner, C. Sollenthaler, P.J. Uggowitzer, and M.O. Speidel: Acta Metall. Mater., 1994, vol. 42, pp. 2211–17.
J. Ishizaka, K. Orita, and K. Terao: J. Iron Steel Inst. Jpn. (Tetsu-to-Hagané), 1992, vol. 78, p. 1846.
Y. Tomota, Y. Xia, and K. Inoue: Acta Mater., 1998, vol. 46, pp. 1577–87.
Y. Tomota, Y. Xia, and K. Inoue: Acta Mater., 1998, vol. 46, pp. 3099–3108.
R.L. Tobler and D. Meyn: Metall. Trans. A, 1988, vol. 19A, pp. 1626–31.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Acselrad, O., Pereira, L.C., Dille, J. et al. Room-temperature cleavage fracture of FeMnAlC steels. Metall Mater Trans A 35, 3863–3866 (2004). https://doi.org/10.1007/s11661-004-0292-4
Received:
Issue Date:
DOI: https://doi.org/10.1007/s11661-004-0292-4