Titanium Nitride and Niobium Carbide in the Ferritic Stainless Steel and the Influence to Casting Macrostructure

Abstract:

Titanium and niobium were applied to stable the carbon or nitrogen which dissolved ferritic stainless steel for improving the anti-corrosion performance. The titanium nitride and niobium carbide had been formed during solidification processing. For understanding those precipitates how to influence the casting macrostructure, three steels that had different content of niobium and the fixed content of titanium had been designed. The result showed the casting macrostructure of ingot and the grain size of the centre-equiaxed crystal zones had different tendency. And the titanium nitride and niobium carbide had interacted.

• Periodical: Materials Science Forum (Volume 944)
• Pages: 322-328
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.944.322
• Online since: January 2019
• Authors: Heng Ke Du, Dian Xiu Xia*, Cheng Jia Shang, Kun Chen
• Keywords: Ferritic Stainless Steel, Niobium Carbide, Solidification Macrostructure, Titanium Nitride

References

[1] W.O. Binder, The influence of chromium on the mechanical properties of plain steels, Trans. ASM. 43 (1951) 759.

[2] H. Yan, H. Bi, X. Li, Z. Xu., Microstructure and texture of Nb+Ti stabilized ferritic stainless steel, Mater Character. (2008) 1741-1746.

DOI: 10.1016/j.matchar.2008.03.018

[3] V. Kuzucu, M. Aksoy, M.H. Korkut, The Effect of Niobium on the microstructure of ferritic stainless steel mater. Sci. Eng., 230 A (1997) 75.

DOI: 10.1016/s0921-5093(97)00010-5

[4] J.L. Cavazos, Characterization of precipitates formed in a ferritic stainless steel stabilized with Zr and Ti additions, Mater Character. 56 (2006) 96.

DOI: 10.1016/j.matchar.2005.05.006

[5] Y. Shan, X. Luo, X. Hu, et al., Mechanisms of solidification structure improvement of ultra pure 17 wt% Cr ferritic stainless steel by Ti, Nb addition, Journal of Material Science and Technology 27 (2011) 352-358.

DOI: 10.1016/s1005-0302(11)60073-x

[6] P.J. Hyun, K.D. SIK, L.S. Beom, Inclusion control of ferritic stainless steel by aluminium deoxidation and calcium treatment, Metallurgical and Materials Transactions B, 36 (2005) 67-73.

DOI: 10.1007/s11663-005-0007-2

[7] L. Liao, R.J. Fruehan, Thermodynamics of Ti, Al and Incision Formation in Stainless Steel and Nickel Alloys, Iron and steelmaker, 10 (1989) 91-97.

[8] H. Matsuura, C. Wang, G. Wen, et a1., The transient stages of inclusion evolution during A1 and/or Ti additions to molten iron, ISIJ International, 47 (2007) 1265-1274.

DOI: 10.2355/isijinternational.47.1265

[9] R. Maddalena, R. Rastogi, B EI-Dasher., et al. Nozzle Deposits in Titanium Treated Stainless Steels, 57th Electric Furnace conference Proceedings, Iron and steels society AIME (2000) 811-831.

[10] G. Scoczylas, A. Dusgupta, Characterization of the chemical interactions during the casting of high-titanium low-carbon enamelling steels, Continuous Casting, 7 (1995) 197-207.

[11] Y. Yazawa, Y. Kato, M. Kobayashi, Development of Ti-bearing high performance ferritic stainless steels R430XT and RSX-1, Kawasaki Steel Technical Report. 40 (1999) 23-29.

[12] J. Hamada, Y. Matsumoto, F. Fudanoki, et a1. Effect of initial solidified structure on ridging phenomenon and texture in type 430 ferritic stainless steel sheets, ISIJ International. 43 (2003), 1989-1998.

DOI: 10.2355/isijinternational.43.1989

[13] N. Fujita, H.K.D.H. Bhadeshia, Modelling simultaneous alloy carbide sequence in power plant steels, ISIJ International. 42 (2002) 760-769.

DOI: 10.2355/isijinternational.42.760

[14] S. VoB, M. Palm, F. Stein, D. Raabe, Phase Equilibria in the Fe-Nb System, Journal of Phase Equilibria and Diffusion, 32 (2011) 97-104.

DOI: 10.1007/s11669-010-9808-3

[15] A. Jacob, C. Schmetterer, A. Khvan, el at., Liquidus projection and thermodynamic modelling of the Cr-Fe-Nb ternary system, Computer Coupling of Phase Diagrams and Thermo chemistry. 54 (2016) 1-15.

DOI: 10.1016/j.calphad.2016.04.013

[16] H. Liu, Z. Liu, Y. Qiu, et a1. Characterization of the solidification structure and texture development of ferritic stainless steel produced by twin-roll strip casting, Materials Characterization. 60 (2009) 79-82.

DOI: 10.1016/j.matchar.2008.06.005

[17] F. Haddad, S. E. Amarta, R. Kesrl., Liquidus surface projection of the Fe-Nb-C system in the iron-rich corner, Metallurgical and Materials Transactions A. 29 (2008) 1026-1033.

DOI: 10.1007/s11661-008-9483-8

[18] S. Yu. K. Ev, Ekaterina V. Sviatysheva, el at., Fragmented structure of niobium carbide particles in as-cast modified HP all, Acta Materialia. 127 (2017) 267-276.

DOI: 10.1016/j.actamat.2017.01.043