Quality Surface Modification for Refractory Stainless Steel by Tungsten Deposition, Using Electro-Spark Deposition Method

Abstract:

In this paper were analyzed Tungsten electrode depositions using electro-spark deposition method, on stainless steel, used for hydraulic turbine vanes and blades of mixing blades for chemical industry, in order to achieve an improved wear resistance. This deposition method was chosen due to its relatively low cost, easy to achieve, and leads to obtaining thin layers with good adherence to the substrate, and with different thicknesses, depending on the number of deposited layers. The chosen electrode is an alpha character element and generates an increase of the mechanical properties at low and high temperatures for austenitic stainless steels. Tungsten does not modify the corrosion resistance for the stainless steels. The samples were analyzed on scanning electrons microscope (SEM) and also the chemical analysis (EDX) for distinguish the layer-support structure and the elements repartition on the surface and in line.

• Periodical: Applied Mechanics and Materials (Volumes 809-810)
• Pages: 417-422
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.809-810.417
• Online since: November 2015
• Authors: Catalin Andrei Tugui*, Petrică Vizureanu, Carmen Nejneru, Manuela Cristina Perju, Mihai Axinte
• Keywords: Electro-Spark Deposition, Scanning Electrons Microscope, Thin Layers

References

[1] D. Mareci, N. Cimpoesu, M.I. Popa, Electrochemical and SEM characterization of NiTi alloy coated with chitosan by PLD technique, Materials and Corrosion. 63 (2012) 176-180.

DOI: 10.1002/maco.201206501

[2] M. Natsume, Y. Hayashi, H. Akebono, M. Kato, A. Suget, Fatigue properties and crack propagation behavior of stainless cast steel for turbine runner of hydraulic power generation, Procedia Engineering. 2 (2010) 1273-1281.

DOI: 10.1016/j.proeng.2010.03.138

[3] H. P. Neopane, O.G. Dahlhaug, M. Cervantes, Sediment erosion in hydraulic turbines, Global Journal of Researches in Engineering Mechanical and Mechanics Engineering. 11, 6 (2011).

[4] J. Suchánek, V. Kuklík, E. Zdravecká, Influence of microstructure on erosion resistance of steels, Wear. 267 (2009) 2092–(2099).

DOI: 10.1016/j.wear.2009.08.004

[5] E. A. Levashov, A. G. Merzhanov, D. V. Shtansky, Advanced Technologies, materials and coatings developed in scientific-Educational Center of SHS, Galvanotechnik, 2009, pp.1-13.

[6] N. Radek, K. Bartkowiak, Laser treatment of electro-spark coatings deposited in the carbon steel substrate with using nanostructured WC-Cu electrodes, Physics Procedia. 39 (2012) 295-301.

DOI: 10.1016/j.phpro.2012.10.041

[7] Jian-sheng Wang, Hui-min Meng, Hong-ying Yu, Zi-shuan Fan, Dong-bai, Characterization and wear behavior of WC-0. 8Co coating on cast steel rolls by electro-spark deposition, International Journal of Minerals, Metallurgy and Materials.  16, 6 (2009).

[8] Z. Chen, Y. Zhou, Surface modification of resistance welding electrode by electro-spark deposited composite coatings: Part I. Coating characterization, Surface & Coatings Technology. 201 (2006) 1503–1510.

DOI: 10.1016/j.surfcoat.2006.02.015

[9] M.C. Perju, D.G. Găluşcă, C. Nejneru, M. Agop, Thin layers: Electrod spark deposition (Straturi subţiri: descărcări în impuls), Ars Longa Publishing, Iaşi, (2010).

[10] L.S. Dong, X. Xiong, Microstructure and properties of TiC coating by vibrating electrospark deposition, Key Engineering Materials. (2008) 373-374.

DOI: 10.4028/www.scientific.net/kem.373-374.180

[11] S. Durdu, S. Levent Aktuğ, K. Korkmaz, Characterization and mechanical properties of the duplex coatings produced on steel by electro-spark deposition and micro-arc oxidation, Surface and Coatings Technology.  236 (2013) 303-308.

DOI: 10.1016/j.surfcoat.2013.10.004

[12] S. Frangini, A. Masci, A study on the effect of a dynamic contact force control for improving electrospark coating properties, Surface & Coatings Technology. 204 (2010) 2613–2623.

DOI: 10.1016/j.surfcoat.2010.02.006

[13] J. Gould, Application of Electro-Spark Deposition as a Joining Technology, Welding Journal. 90 (2011) 191-197.

[14] P. Luoa, S. Donga, A. Yanglib, S. Sunc, Z. Zhengb, H. Wangb, Electrospark deposition of Al2O3–TiB2/Ni composite-phase surface coatings on Cu-Cr-Zr alloy electrodes, Journal of Asian Ceramic Societies. 3 (2015) 103–107.

DOI: 10.1016/j.jascer.2014.11.005

[15] N. Radek, K. Bartkowiak, Laser treatment of Cu-Mo electro-spark deposited coatings, Physics Procedia. 12 (2011) 499-505.

DOI: 10.1016/j.phpro.2011.03.061

[16] N. Radek, K. Bartkowiak, Performance properties of electro-spark deposited carbide-ceramic coatings modified by laser beam, Physics Procedia. 5 (2010) 417–423.

DOI: 10.1016/j.phpro.2010.08.163

[17] R. Wang, Y. Qian, J. Liu, Interface behavior study of WC92–Co8 coating produced by electrospark deposition, Applied Surface Science. 240 (2005) 42–47.

DOI: 10.1016/j.apsusc.2004.05.299

[18] ** Instalation Elitron 22, Academy of Sciences, Republic of Moldova, Chişinău, (1992).