Effect of Ball Milling on Microstructure and Flexural Strength of Ti(C,N)-Ni Cermets

Abstract:

Ti(C,N) cermets were prepared by SPS method. The effects of nickel salt coating as well as ball milling times on the microstructure and mechanical properties of the cermets were investigated. SEM images shows that the nickel was coated homogeneously on the surface of Ti(C,N) powders by mixing Ni salt and Ti(C,N) powder. The grains of Ti(C,N)-based cermets became finer with increasing ball milling time. The flexural strength increased when the balling milling was below 48h, and then decreased with increasing of ball milling time, which was due to the decrease of the flake structure in cermets.

• Periodical: Key Engineering Materials (Volumes 434-435)
• Pages: 76-78
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.434-435.76
• Online since: March 2010
• Authors: Xiao Yan Wang, Jian Li, Rui Fen Wu, Wei Pan
• Keywords: Ball Milling Time, Flexural Strength, Spark Plasma Sintering (SPS), Ti(C,N)

References

[1] Y. Zheng, S.X. Wang, M. You, et al.: Mater. Chem. Phys. Vol. 92 (2005), p.64.

[2] P. Ettmayer, H. Kolaska, W. Lengauer, et al.: Int. J. Refr. Met. Hard Mater. Vol. 13 (1995), p.343.

[3] Y.X. Zhang, Y. Zheng, J. Zhong, et al.: Int. J. Refr. Metals Hard Mater. Vol. 27 (2009), p.1009.

[4] K. Niihara: Powder Metall. Vol 44 (10) (1997), p.887.

[5] B.H. Kear, J. Colaizzi, W.E. Mayo, et al.: Scripta Mater. Vol. 44 (2001), p. (2065).

[6] H. Awaji, S.M. Choi and E. Yagi: Mech. Mater. Vol 34 (2002), p.411.

[7] L. Gao, H. Wang, H. Kawaoka, et al.: J. Eur. Ceram. Soc. Vol 22 (2002), p.785.

[8] S. Saji: Powder Metall. Vol 43 (10) (1996), p.1198.

[9] T. Murakami, A. Kitahara, Y. Koga, et al.: Mater. Sci. Eng. A. Vol 239-240 (1997), p.672.

[10] X. Li, A. Chib, M. Sato, et al.: J. Alloy Compd. Vol 336 (2002), p.232.

[11] N. Liu, Y. Xu, Z. Li, et al.: Ceram Int. Vol 29 (2003), p.919.

[12] L. Chen, W. Lengauer and K. Dreyer: Int. J. Refract. Met. Hard Mater. Vol 18 (2000), p.153.