Oxidation Kinetics of Self-Lubricating Ti-48%Al-2%Nb-2%Cr-x%CaF₂ Composites

Abstract:

The Oxidation kinetics of Ti-48Al-2Nb-2Cr composites (TANC) with addition of different weight contents of CaF2 solid lubricant was evaluated. It is indicated that oxidation dynamic curve follow quasi-parabolic rate law under 800 °C. Once the temperature exceed 1100 °C, the oxidation dynamic curve seems to do not follow quasi-parabolic rate law. The contents of solid lubricant in TANC matrix occur an important influence for oxidation resistance

• Periodical: Applied Mechanics and Materials (Volumes 121-126)
• Pages: 288-292
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.121-126.288
• Online since: October 2011
• Authors: Li Ying Yang, Shou Ren Wang, Ying Zi Wang, Ru Ma, Yong Wang
• Keywords: CaF₂ Solid Lubricants, Oxidation Kinetics, Self-Lubricating, Ti-48Al-2Nb-2Cr

References

[1] Xiubo Liu, Huaming Wang: Wear Vol. 262 (2007), pp.514-521.

[2] C.X. Li, J. Xia, H. Dong: Wear Vol. 261 (2006), pp.693-701.

[3] T. Bacci, F. Borgioli, E. Galvanetto et al: Wear Vol. 240 (2000), pp.199-206.

[4] Xiubo Liu, Shihong Shi, Geyan Fu et al: Appl. Surf. Sci. (2008), accepted.

[5] Y. Jin, K. Kato, N. Umehara: Tribol. Lett Vol. 6 (1999), p.115.

[6] M.L. Ted Guo, C. Y.A. Tsao: Compos. Sci. Technol. Vol. 60 (2000), p.65.

[7] W. Wang: Surf. Coat. Technol. Vol. 177 (2004), p.12.

[8] Jianxin Deng, Tongkun Cao, Zeliang Ding et al: J. Eur. Ceram. Soc. Vol. 26(2006), p.1317–23.

[9] Jianxin Deng, Tongkun Can, Junlong Sun: Ceram. Int. Vol. 31 (2005), p.249–56.

[10] D. Julthongpiput, H.S. Ahn, A. Sidorenko et al: Tribol. Int. Vol. 35 (2002), p.829–36.