Preparation of NiCr-Sialon-CaF₂ Self-Lubricating Die Material and its Friction at High Temperature

Abstract:

In this study, high-temperature self-lubricating material system (NiCr-Sialon-CaF₂) was proposed and samples were prepared by powder metallurgy molding process under proper parameters. Samples with excellent properties can be obtained in a vacuum sintering environment of 1200° C for 2 hours and the ratio of components were Sialon ceramic-5 %, CaF₂-10 % and NiCr-the rest. By XRD and EPMA test, the phase composition and its ingredients were examined. And after the high temperature properties analysis of samples with different ingredients, such as surface morphology and friction factor, the high temperature friction and wear mechanism of this self-lubricating material system was illustrated.

• Periodical: Solid State Phenomena (Volume 279)
• Pages: 167-171
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.279.167
• Online since: August 2018
• Authors: Hao Yang, Ming Chang, Hua Jun Wang*, Zhen Рua Yao
• Keywords: High Temperature Friction, High Temperature Wear, Ni Based Self-Lubricating Materials, Powder Metallurgy, Sialon Ceramics

References

[1] Menezes P L, Rohatgi P K, Lovell M R. Self-Lubricating Behavior of Graphite Reinforced Metal Matrix Composites[J]. Green Energy & Technology, 2012, 49:445-480.

DOI: 10.1007/978-3-642-23681-5_17

[2] Zhu S, Bi Q, Yang J, et al. Influence of Cr content on tribological properties of Ni3Al matrix high temperature self-lubricating composites[J]. Tribology International, 2011, 44(10):1182-1187.

DOI: 10.1016/j.triboint.2011.05.014

[3] Bewlay B P, Jackson M R, Subramanian P R, et al. A review of very-high-temperature Nb-silicide-based composites[J]. Metallurgical & Materials Transactions A, 2003, 34(10):2043-(2052).

DOI: 10.1007/s11661-003-0269-8

[4] Li J, Xiong D. Tribological properties of nickel-based self-lubricating composite at elevated temperature and counterface material selection[J]. Wear, 2008, 265(3–4):533-539.

DOI: 10.1016/j.wear.2007.09.005

[5] Sliney H. The Use of Silver in Self-Lubricating Coatings for Extreme Temperatures[J]. ASLE Transactions, 1986, 29(3):370-376.

DOI: 10.1080/05698198608981698

[6] Sliney H E, Dellacorte C. The friction and wear of ceramic/ceramic and ceramic/metal combinations in sliding contact[J]. Journal of the Society of Tribologists and Lubrication Engineers; (United States), 1994, 50:7(7):571-576.

[7] Wang Q H, Xue Q J, Liu W M, et al. The friction and wear characteristics of nanometer SiC and polytetrafluoroethylene filled polyetheretherketone[J]. Wear, 2000, 243(1):140-146.

DOI: 10.1016/s0043-1648(00)00432-4

[8] Ren S, Yang S, Zhao Y, et al. Friction and Wear Studies of Octadecyltrichlorosilane SAM on Silicon[J]. Tribology Letters, 2002, 13(4):233-239.

[9] Fusaro R, Sliney H. Lubricating Characteristics of Polyimide Bonded Graphite Fluoride and Polyimide Thin Films[J]. ASLE Transactions, 1972, 16(3):189-196.

DOI: 10.1080/05698197308982721

[10] Du L, Zhang W, Liu W, et al. Preparation and characterization of plasma sprayed Ni3Al–hBN composite coating[J]. Surface & Coatings Technology, 2010, 205(7):2419-2424.

DOI: 10.1016/j.surfcoat.2010.09.036

[11] Yao J, Shi X, Zhai W, et al. Influence of Lubricants on Wear and Self-Lubricating Mechanisms of Ni3Al Matrix Self-Lubricating Composites[J]. Journal of Materials Engineering & Performance, 2015, 24(1):280-295.

DOI: 10.1007/s11665-014-1266-3