Effect of Titanium on Solidification Behavior of IC10 Directionally Solidified Superalloy

Abstract:

Solidification behaviors of IC10 alloy with different titanium content were investigated by isothermal solidification method. Volume percentage of liquid and precipitation temperature of primary MC type carbide, eutectic and secondary γ′ phase were investigated. The results showed that with the increase of Ti content in the alloy, the liquidus, solidus and MC carbide formation temperatures decreased, on the contrary, the formation of γ+γ′ eutectic and secondary γ′ increased. For the IC10 alloy with 1.5% titanium content, it is earlier for the interdendritic pools to be divided into the parts. At this condition, melted portion of the alloy resided during isothermal process. As a result, the castability of the IC10 with 1.5% titanium is thus the lowest.

• Periodical: Materials Science Forum (Volume 816)
• Pages: 518-522
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.816.518
• Online since: April 2015
• Authors: Li Yu Liu*, Ying Wei Fan, Qi Wan
• Keywords: Castability, IC10, Microstructure, Solidification, Ti

References

[1] M.J. Goulette. The future costs less-high temperature materials form an aeroenging perspective[C]/ R.D. Kissinger, et al. Superalloys 1996. Warrendale PA: TMS, 1996: 3-6.

DOI: 10.7449/1996/superalloys_1996_3_6

[2] B. B Seth. Superalloys-the utility gas turbine perspective[C]/ T.M. Pollock, et al. Superalloys 2000. Warrendale PA: TMS, 2000: 3-16.

DOI: 10.7449/2000/superalloys_2000_3_16

[3] G.L. Erickson. The development and application of CMSX-10[C] / R.D. Kissinger, et al. Superaloys1996. PA: Warrendale, TMS, 1996: 35-44.

[4] Y.F. Gu, C. Cui, H. Harada, T. Fukuda, D. Ping, A. Mistsuasi, K. Kato, T. Kobayashi, J. Fujioka. Development of Ni-Co Base Alloys for High-Temperature Disk Applications[C]/ R.C. Reed, et al. Superalloys 2008, Seven Springs, 2008, PA: TMS, 2008: 53-61.

DOI: 10.7449/2008/superalloys_2008_53_61

[5] X.H. Zhao, Z. H Huang, , Q. Zhang, Q. Yu, H.B. Xu. New Ni3Al-Based Directionally-Solidified Superalloy IC10. J. Aero. Mater., 26(2006): 20-24.

[6] Z.P. Xing, X.H. Zhao, Q. Yu, Y.N. Tan, Y.F. Han. Ni3Al base dual phase high temperature structural materials IC10. Mater. Sci. Eng. A, 18(2000): 33-34.

[7] Y.W. Fan, S.E. Hou, Z.H. Huang. Effect of Al content on solidification behavior of Ni3Al-base IC10 alloy. Trans. Mater. Heat Treat., 30(2009): 88-92.

[8] Y.R. Zheng, Y.L. Cai, Z.C. Ruan, S.W. Ma. Investigation of effect mechanism of hafnium and zirconium in high temperature materials. J. Aero. Mater., 26(2006): 25-34.

[9] M.V. Nathal, R.D. Mailer,. The influence of cobalt on the microstructure of the nickel-base superalloy MAR-M247. Metall. Mater. Trans. A, 13A(1982): 1775-1783.

DOI: 10.1007/bf02647833

[10] M.V. Nathal, L.J. Ebert. The influence of cobalt, tantalum and tungsten on the microstructure of single crystal nickel-base superalloy. Metall. Mater. Trans. A, 16A(1985): 1849-1862.

DOI: 10.1007/bf02670372

[11] Z. Yang, F. Tian, Z. Zheng, Y.X. Zhu. Effect of element factors of a directionally solidified Ni-base supperalloy on hot tear in turbine blades. Acta Metall. Sin., 38(2002): 1191-1194.

[12] X.F. Sun, F.S. Yin, J.G. Li, G.C. Hou, Q. Zheng, H.R. Guan, Z.Q. Hu. Solidification behavior of a cast nickel-base superalloy. Acta Metall. Sin., 39(2003): 27-29.

[13] Y.J. Sun, J.G. Kang, S.K. Gong. Effects of Ti, Al and Ta on microstructure and properties of Ni-based single crystal superally. Special Casting Nonferrous Alloys., 28(2008): 660-662.

[14] Y.R. Zheng, D.T. Zhang. Color metallographic investigation of superalloys and steels[M]. National Defense Industry Press. (1999).