Experimental Research on the Friction and Wear Properties of Ni-Based Composite Coating Prepared by Laser Cladding

Abstract:

In this study, the dry sliding wear behavior of Ni-based self-lubricating wear-resistant coating was characterized under various loads at 300 . Morphologies and compositions of the worn surface were analyzed by scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The experimental results showed that with the increase of load, both the frictional coefficient and wear rate decreased firstly, then slightly increased. A small amount of debris dispersed on the worn surface of the coating under low load (2 N). Since the effects of oxide layer and lubricant particles spreading onto the worn surface, the coating exhibited superior friction, and improved the wear properties under moderate load (5 N). As the load further increased, till up to 10N, the worn surface started to appear some shallow grooves and craters. This was contributed to the dispersion of carbides and lubricant particles.

• Periodical: Materials Science Forum (Volumes 747-748)
• Pages: 152-157
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.747-748.152
• Online since: February 2013
• Authors: Shu Fa Chen, Cheng Long Feng, Jin Yang, Jin Song Chen
• Keywords: Friction, Self-Lubricating Wear-Resistant Coating, Variation of Load, Wear, Wear Mechanism Analysis

References

[1] Y.J. Gao, S.T. Zhang, Z.C. Deng, et al. Tribological properties of laser cladding high-temperature self-lubrication composite coatings [J]. China Surface Engineering, 2011, 24(2): 51-56.

[2] Y.J. Yu, J.S. Zhou, J.M. Chen，et al. Microstructure and tribological behavoir of laser cladding NiCr/Cr3C2-Ag-BaF2/CaF2 self-lubrication wear-resistance metal matrix composite coating[J]. China Surface Engineering, 2010, 23(3): 64-73.

[3] H.M. Wang, Y.L. Yu and S.Q. Li. Microstructure and tribological properties of laser clad CaF2/Al2O3 self-lubrication wear-resistant ceramic matrix composite coatings [J]. Scripta Materialia, 2002, 47: 57-61.

DOI: 10.1016/s1359-6462(02)00086-6

[4] X.B. Liu, S.H. Shi, J. Guo, et al. Microstructure and wear behavior of γ/Al4C3/TiC/CaF2 composite coating on γ-TiAl intermetallic alloy prepared by Nd: YAG laser cladding [J]. Applied Surface Science, 2009, 255: 5662-5668.

DOI: 10.1016/j.apsusc.2008.11.023

[5] L. Rapoport,V. Leshchinsky, M. Lvovsky, et al. Friction and wear of powdered composites impregnated with WS2 inorganic fullerene-like nanoparticles [J]. Wear, 2002, 252: 518-527.

DOI: 10.1016/s0043-1648(02)00004-2

[6] X.F. Zhang, A.H. Wang, X.L. Zhang, et al. Microstructure and tribological properties of laser cladding Ni45-CaF2-WS2 self-lubrication coating [J]. Transactions of Nonferrous Metals Society of China, 2008, 18(2): 215-220.

DOI: 10.1016/s1003-6326(08)60233-2

[7] X.B. Liu, Y.F. Liu, J.S. Mu, et al. Laser cladding for high-temperature self lubrication wear resistant composite coatings on γ-TiAl intermetallic alloy [J]. Tribology, 2009, 29(6): 499-504.

[8] X.D. Lu, H.M. Wang. Metallic tribological compatibility of laser clad Mo2Ni3Si/NiSi metal silicide coatings [J]. Surface and Coatings Technology, 2005, 200: 2380-2385.

DOI: 10.1016/j.surfcoat.2004.10.101

[9] W.L. Ma, J.J. Lu. Effect of surface texture on transfer layer formation and tribological behavior of copper-graphite composite [J]. Wear, 2011, 270: 218-229.

DOI: 10.1016/j.wear.2010.10.062