Structure and Properties of Coatings Made with Self Shielded Cored Wire

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The welding technologies are widely used for design of protection layer against wear and corrosion. Hardfacing, which is destined for obtaining coatings with high hardness, takes special place in these technologies. One of the most effective way of hardfacing is using self shielded flux cored arc welding (FCAW-S). Chemical composition obtained in flux cored wire is much more rich in comparison to this obtained in solid wire. The filling in flux cored wires can be enriched for example with the mixture of hard particles or phases with specified ratio, which is not possible for solid wires. This is the reason why flux cored wires give various possibilities of application of this kind of filler material for improving surface in mining industry, processing of minerals, energetic etc. In the present paper the high chromium and niobium flux cored wire was used for hardfacing process with similar heat input. The work presents studies of microstructures of obtained coatings and hardness and geometric properties of them. The structural studies were made with using optical microscopy and X-ray diffraction that allowed for identification of carbides and other phases obtained in the structures of deposited materials. Investigated samples exhibit differences in coating structures made with the same heat input 4,08 kJ/mm. There are differences in size, shape and distribution of primary and eutectic carbides in structure. These differences cause significant changes in hardness of investigated coatings.

[1] Klimpel, A. (2000). Cladding and thermal spraying – technologies. Warsaw: WNT. (in Polish).

[2] Buytoz, S. & Yildirim, M.M. (2010). Microstructure and abrasive wear properties of M(Cr,Fe)7C3 carbides reinforced high-chromium carbon coating produced by gas tungsten arc weldign (GTAW) process. Archives of Foundry Engineering. 10(special 1), 279-286.

[3] Szajnar, J., Wróbel, P. & Wróbel, T. (2010). Multi-layers castings. Archives of Foundry Engineering. 10(1), 181-186.

[4] Fraś, E., Olejnik, E., Janas, A. & Kolbus, A. (2010). The morphology of TiC carbides produced in surface layers of carbon steel castings. Archives of Foundry Engineering. 10(4), 39-42.

[5] Suchoń, J., Strudnicki, A. & Przybył, M. (2010). Stereology of carbide phase in modified hypereutectic chromium cast iron. Archives of Foundry Engineering. 10(2), 169-174.

[6] Zikin, A., Hussainova, I., Katsich, C., Badisch, E. & Tomastik C. (2012). Advanced chromium carbide-based hardfacings. Surface & Coatings Technology. 206(19), 4270-4278. DOI: 10.1016/j.surfcoat.2012.04.039.

[7] Veinthal, R., Sergejev, F., Zikin, A., Tarbe, R. & Hornung, J. (2013). Abrasive impact wear and surface fatigue wear behaviour of Fe–Cr–C PTA overlays. Wear. 301(1), 102-108. DOI:10.1016/j.wear.2013.01.077.

[8] Katsich, C. & Badisch, E. (2011). Effect of carbide degradation in a Ni-based hardfacing under abrasive and combined impact/abrasive conditions. Surface & Coatings Technology. 206(2), 1062-1068. DOI: 10.1016/j.surfcoat.2011.07.064.

[9] Lai, H.H., Hsieh, C.C., Lin, C.M., & Weite Wu. (2014). Effect of oscillating traverse welding on microstructure evolution and characteristic of hypoeutectic hardfacing alloy. Surface & Coatings Technology. 239, 233-239. DOI: 10.1016/j/surfcoat.2013.11.048.

[10] Xiaowen Qi, Zhining Jia, Qingxiang Yang, & Yulin Yang. (2011). Effects of vanadium additive on structure property and tribological performance of high chromium cast iron hardfacing metal. Surface & Coatings Technology. 205, 5510-5514. DOI: 10.1016/j/surfcoat.2011.06.027.

[11] Klimpel, A., Dobrzański, L.A., & Janicki, D. (2015). A study of worn wear plates of fan blades of steel mill fumes suction system. Journal of Materials Processing Technology.164-165, 1062-1067. DOI:10.1016/j.jmatprotec.2005.02.219.

[12] Zhou, Y.F., Yang, Y.L., Jiang, Y.W., Yang, J., Ren, X.J. & Yang, Q.X. (2012). Fe–24 wt.%Cr–4.1 wt.%C hardfacing alloy: Microstructure and carbide refinement mechanisms with ceria additive. Materials Charakterization. 72, 77-86, DOI: 10.1016/j.matchar.2012.07.004

[13] Popović, O., Prokić-Cvetković, R., Burzić, M., Lukić, U. & Beljić, B. (2014). Fume and gas emission during arc welding: Hazards and recommendation. Renewable and Sustainable Energy Reviews. 37, 509-–516, DOI: 10.1016/j.rser.2014.05.076

[14] Gucwa, M., Winczek, J. (2015) The properties of high chromium hardfacings made with using pulsed arc. Archives of Foundry Engineering. 15(1), 37-40

[15] Gucwa, M. & Bęczkowski, R. (2014). The effect of heat input on the geometric propoerties of welded joints. Archives of Foundry Engineering. 14(special 1), 127-130.

[16] Bober, M., & Tabota, K. (2015). Study significance of the impact of the basic parameters of plasma surfacing on the geometry of the weld overlays. Welding Technology Review. 87(9), 24-28.

[17] Bęczkowski, R. & Gucwa, M. (2011). Statistic determination of self-shielded arc surfacing parameters influence on the padding welds geometry. Welding Technology Review. 83(10), 40-43.

Archives of Foundry Engineering

The Journal of Polish Academy of Sciences

Journal Information

CiteScore 2016: 0.42

SCImago Journal Rank (SJR) 2016: 0.192
Source Normalized Impact per Paper (SNIP) 2016: 0.316

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