Effects of Nano-TiO₂ on Microstructure and Properties of Ceramic-Lined Composite Steel Pipes Produced by Centrifugal Self-Propagating High-Temperature Synthesis

Abstract:

In order to improve the density and mechanical properties of ceramic-lined composite steel pipes produced by Centrifugal Self-propagating High-temperature Synthesis. Composite steel pipes were prepared by the method of centrifugal-SHS on the basic of Al-Fe₂O₃ system. With the condition of adding 6% SiO₂ and 4% Na₂B₄O₇, the effect of different amount of nano-TiO₂ on the density and the mechanical properties of composite steel pipes was studied. By means of SEM analysis, XRD and mechanical tests, the results show that the ceramic layer consists of main crystal phase of α-Al₂O₃, with small amount phases of FeAl₂O₄, Al₂SiO₅ and B₂O₃. The surface of ceramic layer is smooth, without obvious crack and with good density. The shearing strength of the ceramic layer and the crushing strength of the composite pipe were 13.5 MPa under 8% (in mass) nano-TiO₂ and 525Mpa. The density of ceramic layer is up to 94.2% under 8% (in mass) nano-TiO₂.

• Periodical: Advanced Materials Research (Volume 659)
• Pages: 10-14
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.659.10
• Online since: January 2013
• Authors: Yu Zhu, Feng Huang, Yu Xi Ge, Hong Jun Ni
• Keywords: Composite Steel Pipe, Nano Additive, Self-Propagation High-Temperature Synthesis (SHS)

References

[1] J J Moore, H J Feng, Combustion synthesis of advanced materials: part Ⅰ: reaction parameters, J. Progress in Materials Science. 39 (1995) 243-273.

DOI: 10.1016/0079-6425(94)00011-5

[2] Z Z Du, H G Fu, H F Fu, A study of ceramic-lined compound copper pipe produced by SHS–centrifugal casting, J. Materials Letters. 59 (2005) 1853–1858.

DOI: 10.1016/j.matlet.2005.02.060

[3] Y F Wang, Z G Yang, Finite element analysis of residual thermal stress in ceramic-lined composite pipe prepared by centrifugal-SHS, J. Materials Science and Engineering A. (2007) 130-134.

DOI: 10.1016/j.msea.2007.01.017

[4] P C Cobb, Titanium, Carbide as a Sintering Agent for Titanium Boride, J. Material and Design. (1998) 378.

[5] S Yin, Z M Guo, T Lin, et al, Development and Industrial Application of Ceramic Lined Steel Pipe, J. Materials Review. 14 (2000) 44-46.

[6] Y B Lai, D G Chen, Application of Compound Pipe with Ceramic and Steel Iron in Boiler, J. Foundry Technology. (2004) 899-900.

[7] T L Zhao, Ceramic composite steel pipe and the application in metal mines, J. Metal Mine. 6 (1997) 38-39.

[8] W L Jiao, Effects of Alternative Magnetic Field on Phase Structure in Ceramic Layer of Ceramic Lined Compound Steel Pipes Fabricated by SHS, J. Special Casting & Nonferrous Alloys. 29 (2009) 596-598.

[9] H Y Yan, X D Pan, J Xue, et al, Study on influences of mechanical vibration on ceramic-lined pipes produced by self-propagating high-temperature syntheses, J. Powder Metallurgy Technology. 23 (2005) 440-444.

[10] J J Wang, Z M Zhao, M H Ye, et al, Influences of Mechanical Vibration on Microstructure and Mechanical Properties of SHS Ceramic-lined Pipes, J. Materiae Compositae Sinica. 17 (2000) 55-59.

[11] W M Zhang, J R Yu, X Z Zhang, Influence of CuO on Macrostructure of Ceramic Composite Pipe Fabricated by Gravitational Separation-SHS Method, J. Journal of Materials Science and Engineering. 26 (2008) 107-109.

[12] L Chen, J Xu, Effect of Y2O3 on Microstructure and Mechanical Properties of Ceramic-Lined Pipes Made by SHS-Centrifugal Process, J. Chinese Rare Earths. 24 (2003) 50-51.

[13] L Zhang, W L Jiao, Effects of MnO2 on structure and properties of ceramic layer of ceramic lined compound pipes by the self-propagating high-temperature synthesis, J. Journal of the Chinese Ceramic Society. 35 (2007) 1540-1545.

[14] F Gao, Z M Guo, T Lin, The Effect of Adding Titanium on Microstructure and Properties of Ceramic-lined Composite Pipe Made by Centrifugal-SHS Process, J. Bulletin of the Chinese Ceramic Society. 26 (2007) 627-631.

[15] D L Li, X N He, Effect of SiO2 on Densification and Mechanical Properties of Ceramic-lined Pipes, J. Materials for Mechanical Engineering. 25 (2001) 32-34.

[16] D L Li, T D Xia, X N He, Effect of Na2B4O7 on the shearing strength of Ceramic-lined Pipes produced by Centrifugal Self-propagating High-temperature Synthesis, J. Powder Metallurgy Technology. 18 (2000) 257-260.

[17] J R Yu, W M Zhang, B Wu, et al, Influence of nano SiC on phase composition and properties of inside ceramic lining coating prepared on composite pipes by gravitational separation self-propagation high-temperature synthesis, J. Materials Protection. 42 (2009).

[18] Y Zhu, S G Sun, H J Ni, et al, Study on microstructure and properties of ceramic-lined compound pipes produced by centrifugal-SHS Process, J. Hot Working Technology. 39 (2010) 84-86.

[19] S G Zhang, Y F Liang, B P Zhang, et al, Effects of adding ZrSiO4 and TiO2 on microstructures and properties of ceramic·lined composite pipe made by centrifugal·SHS process, J. The Chinese Journal of Nonferrous Metals. 12 (2002) 639-642.