Effect of Fly Ash Composition on Electrodeposited Nickel-Fly Ash Composite Coatings on Aluminium Alloy 7075 Substrate

Article Preview

Abstract:

The nickel-fly ash (Ni-FA) composite coatings were deposited on zincated aluminium alloy 7075 (AA7075) substrate by using electrodeposition technique. The electrodeposition process was carried out for 1 hour at 40°C under the current density of 3 A/dm2 in nickel-citrate bath containing various composition of fly ash (FA) particles at 10, 20, 30, 40 and 50 g/l. The produced composite coatings were characterized using scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDX). Microhardness and wear of Ni-FA composite coatings were also investigated in this study. The co-deposition of FA particles leads to significant increase in hardness and wear resistance.

You might also be interested in these eBooks

Info:

Periodical:

Solid State Phenomena (Volume 264)

Pages:

177-181

Citation:

Online since:

September 2017

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2017 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] Smith, C.J.E., M.S. Higgs, and K.R. Baldwin, Advance in protective coatings and their application to ageing aircraft, in New metallic materials for the structure of ageing aircraft. 1999, RTO-AVT: Corfu, Greece. P. 15-1, 15-8.

Google Scholar

[2] Bocking, C. and A. Reynolds, Mechanism of adhesion failure of anodized coatings on 7075 aluminium alloy. Transactions of the Institute of Metal Finishing, 2011. 89 (6): pp.298-302.

DOI: 10.1179/174591911x13173054200817

Google Scholar

[3] Visser, P., Novel totally chrome free corrosion inhibiting coating technology for protection of aluminium alloys. Transactions of the Institute of Metal Finishing, 2011. 89 (6): pp.291-294.

DOI: 10.1179/174591911x13172025236839

Google Scholar

[4] Nguyen, V. H., Anh, T., Ngo, T., Pham, H. H., & Nguyen, N. P. (2013). Nickel composite plating with fly ash as inert particle. Transactions of Nonferrous Metals Society of China, 23(8), 2348–2353.

DOI: 10.1016/s1003-6326(13)62740-5

Google Scholar

[5] Khairul Nizar, I., Al Bakri, A. M. M., Rafiza, a. R., Kamarudin, H., Abdullah, A., & Zarina, Y. (2013). Study on Physical and Chemical Properties of Fly Ash from Different Area in Malaysia. Key Engineering Materials, 594-595, 985–989.

DOI: 10.4028/www.scientific.net/kem.594-595.985

Google Scholar

[6] Astm. (2010). Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use. Annual Book of ASTM Standards, 3–6.

DOI: 10.1520/c0618-00

Google Scholar

[7] Panagopoulos, C. N., Georgiou, E. P., Tsopani, A., & Piperi, L. (2011). Applied Surface Science Composite Ni – Co – fly ash coatings on 5083 aluminium alloy. Applied Surface Science, 257(11), 4769–4773.

DOI: 10.1016/j.apsusc.2010.10.130

Google Scholar

[8] Tamilrasan, T.R., Rajendran, R., Siva Shankar, M., Sanjith, U., Rajagopal, G. N and Sudagar, J. (2016). Wear and scratch behavior of electroless Ni-P-nano-TiO2: Effect of surfactants. Wear, 346- 347, 148- 157.

DOI: 10.1016/j.wear.2015.11.015

Google Scholar