Study on the heat treatment of 03Ni18Co9Mo5TiAl steel for high synthetic mechanical application in defense products
179 viewsDOI:
https://doi.org/10.54939/1859-1043.j.mst.FEE.2022.185-190Keywords:
Maraging steel; 03Ni18Co9Mo5TiAl alloy steel; High strength martensitic steel; Heat treatment of maraging steel; Aging martensitic steel.Abstract
The maraging steels is a special steel system with the highest strength of all steels and is widely used in the military for the manufacture of rocket engine shells, armor-piercing shells, etc. Steel 03Ni18Co9Mo5TiAl is one of these grades. This paper reseach heat treatment of 03Ni18Co9Mo5TiAl steel including quenching and aging, observing microstructure. Measurement of hardness, tensile strength as the basis for selecting heat treatment regime for high mechanical properties, applications in defense products. The obtained results show that quenching at 820 oC, aging at 490 oC for 4 - 6 h for hardness reaches 53,5 HRC and tensile strength over 2200 MPa.
References
[1]. Metals HandBook Volume 1 - “Properties and Selection Irons Steels and High Performance Alloy”, pp 1869-1887, (1993).
[2]. “18 percent nickel maraging steels, engineering properties”, Distributited by the Nickel Development institude, couresy of inco Limited, (1976).
[3]. R. Tewari1, S. Mazumder, I. S. Batra, G. K. Dey, S. Banerjee1. “Precipitation in 18 wt% Ni maraging steel of grade 350”, Acta Materialia Volume 48, Issue 5, pp. 1187-1200, (2000). DOI: https://doi.org/10.1016/S1359-6454(99)00370-5
[4]. Adriano Gonçalves dos Reis, Danieli Aparecida Pereira Reis, Antônio Jorge Abdalla, Jorge Otubo, “High-temperature creep resistance and effects on the austenite reversion and precipitation of 18 Ni (300) maraging steel”, Materials Characterization 107, pp. 350–357, (2015). DOI: https://doi.org/10.1016/j.matchar.2015.08.002
[5]. Tamura, K. Tsuzaki, T. Maki, “Morphology of lath martensite formed from deformed austenite in 18% Nimaraging steel”. Journal de Physique Colloques, pp.C4-551-C4-556, (1982). DOI: https://doi.org/10.1051/jphyscol:1982486
[6]. Aline Castilho Rodrigues, Heide Heloise Bernardi, Jorge Otubo, “Microstructural Analysis of Co-Free Maraging Steel Aged”, Journal of Aerospace Technology and Management, vol. 6, pp. 389-394, (2014). DOI: https://doi.org/10.5028/jatm.v6i4.400
[7]. S. W. Ooia, P. Hillb, M. Rawsonb, H. K. D. H. Bhadeshiaa, “Effect of retained austenite and high temperature Laves phase on the work hardening of an experimental maraging steel”, Materials Science and engineering A564, pp 485-492, (2013). DOI: https://doi.org/10.1016/j.msea.2012.12.016
