Investigation of Hardness of Electroless Ni-P-CNF Composite Coatings
Keywords:
Electroless, Composite Coating, FESEM-EDAX, Hardness, Ni-P-CNF Coatings.Abstract
In the current experimental work, the electroless Ni-P-CNF nano-composite plating has been deposited upon
basic mild steel substrate. The activated 1.5 gpl CNF nano-particles were integrated into an acidic electroless
Ni-P matrix as a second phase material and were condensed by a reducing agent named as sodium
hypophosphite. After coating, as-prepared Ni-P/Ni-P-CNF EL deposition were heated at 350C in Ar
environment for one hour duration and were analysed for surface morphology and elemental composition by
SEM and EDAX. A homogeneous and heavy consistent allocation of CNF nano-particles into EL Ni-P matrix is
established through analysis of SEM and EDAX. The hardness (HV50) is measured by micro-hardness tester.
The micro-hardness of the substrate, Ni-P coated sample and Ni-P-CNF coated samples are in subsequent order
as Ni-P-CNF (heated) > Ni-P-CNF (as-coated) > Ni-P (heated) > Ni-P (as-plated) > MS
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References
Agarwala, R. C. (1987). Structural studies and crystallization behaviour of electroless Ni-P films. Ph.D. Thesis,
University of Roorkee, Roorkee (India), 1-218.
Agarwala, R. C., & Agarwala, V. (2003). Electroless alloy/composite coatings: A review. Sadhana, 28(3-4),
-493.
Alishahi, M., Monirvaghefi, S. M., Saatchi, A., & Hosseini, S. M. (2012). The effect of carbon nanotubes on the
corrosion and tribological behavior of electroless Ni–P–CNT composite coating. Applied Surface Science,
(7), 2439-2446.
Apachitei, I., Tichelaar, F. D., Duszczyk, J., & Katgerman, L. (2002). The effect of heat treatment on the
structure and abrasive wear resistance of autocatalytic NiP and NiP–SiC coatings. Surface and Coatings
Technology, 149(2-3), 263-278.
Balaraju, J. N., Narayanan, T. S., & Seshadri, S. K. (2003). Electroless Ni–P composite coatings. Journal of
Applied Electrochemistry, 33(9), 807-816.
Bouanani, M., Cherkaoui, F., Cherkaoui, M., Belcadi, S., Fratesi, R., & Roventi, G. (1999). Ni–Zn–P alloy
deposition from sulfate bath: inhibitory effect of zinc. Journal of applied electrochemistry, 29(10), 1171-1176.
Brenner, A., & Riddell, G. E. (1946). Nickel plating on steel by chemical reduction. Journal of Research of the
National Bureau of Standards, 37, 31-34.
Brenner, A., & Riddell, G. E. (1947). Deposition of nickel and cobalt by chemical reduction. Journal of
Research of the National Bureau of Standards, 39, 385-395.
Datta, P. K., Bedingfield, P. B., Lewis, D. B., & Wells, P. B. (1991). Structure and phase changes
accompanying treatment of electroless Ni–B alloy coating. In Conference Proceeding. 2nd Int. Electroless
Nickel Conference (pp. 139-153).
Deng, C. F., Wang, D. Z., Zhang, X. X., & Li, A. B. (2007). Processing and properties of carbon nanotubes
reinforced aluminum composites. Materials Science and Engineering: A, 444(1-2), 138-145.
Gao, Z., Zhao, S., Wang, Y., Wang, X., & Wen, L. (2015). Corrosion behavior and wear resistance
characteristics of electroless Ni–P–CNTs plating on carbon steel. International Journal of Electrochemical
Science, 10, 637-648.
Ghaemi, F., Ahmadian, A., Yunus, R., Ismail, F., & Rahmanian, S. (2016). Effects of thickness and amount of
carbon nanofiber coated carbon fiber on improving the mechanical properties of nanocomposites.
Nanomaterials, 6(1), 6, 1-16. Doi: 10.3390/nano6010006.
Hamdy, A. S., Shoeib, M. A., Hady, H., & Salam, O. A. (2007). Corrosion behavior of electroless Ni–P alloy
coatings containing tungsten or nano-scattered alumina composite in 3.5% NaCl solution. Surface and Coatings
Technology, 202(1), 162-171.
Huang, Y. S., Zeng, X. T., Hu, X. F., & Liu, F. M. (2004). Corrosion resistance properties of electroless nickel
composite coatings. Electrochimica Acta, 49(25), 4313-4319.
Jiaqiang, G., Lei, L., Yating, W., Bin, S., & Wenbin, H. (2006). Electroless Ni–P–SiC composite coatings with
superfine particles. Surface and Coatings Technology, 200(20-21), 5836-5842.
Neubauer, E., Kitzmantel, M., Hulman, M., & Angerer, P. (2010). Potential and challenges of metal-matrix-
composites reinforced with carbon nanofibers and carbon nanotubes. Composites Science and Technology,
(16), 2228-2236.
Raghubanshi, H., & Dikio, E. D. (2015). Synthesis of helical carbon fibers and related materials: A review on
the past and recent developments. Nanomaterials, 5(2), 937-968.
Journal of Graphic Era University
Vol. 6, Issue 2, 238-245, 2018
ISSN: 0975-1416 (Print), 2456-4281 (Online)
Sharma, S. B, (2002). Synthesis and tribological characterization of Ni-P based electroless composite coatings.
Ph.D Thesis, IIT Roorkee, India, 1-305.
Shi, Y. L., Yang, Z., Xu, H., Li, M. K., & Li, H. L. (2004). Preparation of electroplated Ni-P-ultrafine diamond,
Ni-P-carbon nanotubes composite coatings and their corrosion properties. Journal of Materials Science, 39(18),
-5815.
Srivastava, A., Mohan, S., Agarwala, V., & Agarwala, R. C. (1992). Factors influencing the deposition rate of
Ni--B electroless films. Zeitschrift fur Metallkunde (Germany), 83(4), 251-253.
Sudagar, J., Lian, J., & Sha, W. (2013). Electroless nickel, alloy, composite and nano coatings–A critical
review. Journal of Alloys and Compounds, 571, 183-204.
Sung-Kyu, K. I. M., & Tae-Sung, O. H. (2011). Electrodeposition behavior and characteristics of Ni-carbon
nanotube composite coatings. Transactions of Nonferrous Metals Society of China, 21(1), S68-S72.
Valova, E., Georgiev, I., Armyanov, S., Delplancke, J. L., Tachev, D., Tsacheva, T., & Dille, J. (2001).
Incorporation of zinc in electroless deposited nickel-phosphorus alloys I. A comparative study of Ni-P and Ni-
Zn-P coatings deposition, structure, and composition. Journal of the Electrochemical Society, 148(4), C266-
C273.
Veeraraghavan, B., Haran, B., Kumaraguru, S. P., & Popov, B. (2003). Corrosion protection of steel using
nonanomalous Ni-Zn-P coatings. Journal of the Electrochemical Society, 150(4), B131-B139
