Microstructure and wear behavior of Cr2O3-40% TiO2 coating on magnesium alloy via plasma spraying

Abstract

In this study, the surface of the magnesium alloy was coated with Cr2O3-40% TiO2 by plasma spray coating method. The surface coating process was carried out at two different current (580 and 500 A) and two different spray distances (110 and 130 mm), and the effects of these parameters on microstructure and mechanical properties were examined. Characterization of the coated surface layers was analyzed by optical microscope (OM), scanning electron microscope (SEM), X-ray diffraction (XRD) and energy dispersed X-rays (EDS). Tribological properties of coatings were determined in disc-on-disc type wear test device at 3 different loads (2.5, 5 and 7.5 N) and 150 m sliding distance. Cr2O3, TiO2 and TiO were detected in the coating layers of samples coated with Cr2O3-40% TiO2. The hardness and wear resistance of the coatings are quite high compared to the magnesium alloy. Hardness and abrasion resistance decreased with decreasing current and increasing spray distance. The friction coefficient of the magnesium alloy is lower than the coated samples.

Keywords

• Surface coating,Plasma spray,Magnesium alloys,Ceramics,Wear

References

1. [1] Muhaffel, F., Cimenoglu, H. (2019). Development of corrosion and wear resistant micro-arc oxidation coating on a magnesium alloy. Surface and Coatings Technology, 357: 822-832, [2] Atapour, M., Blawert, C., Zheludkevich, M. (2019). The wear characteristics of CeO2 containing nanocomposite coating made by aluminate-based PEO on AM 50 magnesium alloy. Surface and Coatings Technology, 357: 626-637, [3] Carrillo, D. F., Santa, A. C., Valencia-Escobar, A., Zapata, A., Echeverría, F., Gómez, M. A., Zuleta, A. A., Castaño, J. G. (2019). Tribological behavior of electroless Ni–P/Ni–P–TiO 2 coatings obtained on AZ91D magnesium alloy by a chromium-free process. The International Journal of Advanced Manufacturing Technology, 105 (1-4): 1745-1756, [4] Chen, J., Ma, B., Feng, S., Dai, Y., Liu, G., Song, H., Jia, L. (2019). Preparation and application of 420 martensitic stainless steel wear resistant coating on magnesium alloy by cold spraying. Surface Engineering, 35 (4): 351-359, [5] López, A., Torres, B., Taltavull, C., Rams, J. (2013). Influence of high velocity oxygen-fuel spraying parameters on the wear resistance of Al–SiC composite coatings deposited on ZE41A magnesium alloy. Materials & Design, 43: 144-152, [6] Shen, J., Zou, B., Dong, S., Cai, X., Cao, X. (2019). Fabrication and characterization of TiB2-TiC-Co wear-resistant coatings on AZ91D magnesium alloy. Surface and Coatings Technology, 364: 358-368, [7] Chen, J., Ma, B., Liu, G., Song, H., Wu, J., Cui, L., Zheng, Z. (2017). Wear and corrosion properties of 316L-SiC composite coating deposited by cold spray on magnesium alloy. Journal of Thermal Spray Technology, 26 (6): 1381-1392, [8] Rodrigo, P., Campo, M., Torres, B., Escalera, M., Otero, E., Rams, J. (2009). Microstructure and wear resistance of Al–SiC composites coatings on ZE41 magnesium alloy. Applied Surface Science, 255 (22): 9174-9181, [9] He, L., Tan, Y., Wang, X., Xu, T., Hong, X. (2014). Microstructure and wear properties of Al2O3-CeO2/Ni-base alloy composite coatings on aluminum alloys by plasma spray. Applied Surface Science, 314: 760-767, [10] Goel, S., Björklund, S., Curry, N., Wiklund, U., Joshi, S. V. (2017). Axial suspension plasma spraying of Al2O3 coatings for superior tribological properties. Surface and Coatings Technology, 315: 80-87, [11] Güney, B. r., Mutlu, I. (2019). TRIBOLOGICAL PROPERTIES OF BRAKE DISCS COATED WITH Cr2O3–40% TiO2 BY PLASMA SPRAYING. Surface Review and Letters, 26 (10): 1950075, [12] Güney, B., Mutlu, I. (2019). Wear and corrosion resistance of Cr2O3%-40% TiO2 coating on gray cast-iron by plasma spray technique. Materials Research Express, 6 (9): 096577, [13] Singh, V. P., Sil, A., Jayaganthan, R. (2011). Tribological behavior of plasma sprayed Cr2O3–3% TiO2 coatings. Wear, 272 (1): 149-158, [14] Babu, P. S., Sen, D., Jyothirmayi, A., Krishna, L. R., Rao, D. S. (2018). Influence of microstructure on the wear and corrosion behavior of detonation sprayed Cr2O3-Al2O3 and plasma sprayed Cr2O3 coatings. Ceramics International, 44 (2): 2351-2357, [15] Deng, W., Li, S., Hou, G., Liu, X., Zhao, X., An, Y., Zhou, H., Chen, J. (2017). Comparative study on wear behavior of plasma sprayed Al2O3 coatings sliding against different counterparts. Ceramics International, 43 (9): 6976-6986, [16] Bagde, P., Sapate, S., Khatirkar, R., Vashishtha, N., Tailor, S. (2018). Friction and wear behaviour of plasma sprayed Cr2O3-TiO2 coating. Materials Research Express, 5 (2): 026410, [17] Thirumalaikumarasamy, D., Kamalamoorthy, K. S., Visvalingam, V. B. (2015). Effect of experimental parameters on the micro hardness of plasma sprayed alumina coatings on AZ31B magnesium alloy. Journal of Magnesium and Alloys, 3 (3): 237-246, [18] Gao, Y., Jie, M., Liu, Y. (2017). Mechanical properties of Al2O3 ceramic coatings prepared by plasma spraying on magnesium alloy. Surface and Coatings Technology, 315: 214-219, [19] Kubatík, T., Pala, Z., Neufuss, K., Vilémová, M., Mušálek, R., Stoulil, J., Slepička, P., Chráska, T. (2015). Metallurgical bond between magnesium AZ91 alloy and aluminium plasma sprayed coatings. Surface and Coatings Technology, 282: 163-170, [20] Kubatík, T., Lukáč, F., Stoulil, J., Ctibor, P., Průša, F., Stehlíková, K. (2017). Preparation and properties of plasma sprayed NiAl10 and NiAl40 coatings on AZ91 substrate. Surface and Coatings Technology, 319: 145-154, [21] Ge, Y., Wang, W., Wang, X., Cui, Z., Xu, B. (2013). Study on laser surface remelting of plasma-sprayed Al–Si/1 wt% nano-Si3N4 coating on AZ31B magnesium alloy. Applied Surface Science, 273: 122-127, [22] Xu, J., Zou, B., Zhao, S., Hui, Y., Huang, W., Zhou, X., Wang, Y., Cai, X., Cao, X. (2014). Fabrication and properties of ZrC–ZrB2/Ni cermet coatings on a magnesium alloy by atmospheric plasma spraying of SHS powders. Ceramics International, 40 (10): 15537-15544, [23] Zou, B., Tao, S., Huang, W., Khan, Z. S., Fan, X., Gu, L., Wang, Y., Xu, J., Cai, X., Ma, H. (2013). Synthesis and characterization of in situ TiC–TiB2 composite coatings by reactive plasma spraying on a magnesium alloy. Applied Surface Science, 264: 879-885, [24] Çelik, İ. (2016). Structure and surface properties of Al2O3–TiO2 ceramic coated AZ31 magnesium alloy. Ceramics International, 42 (12): 13659-13663, [25] Kar, S., Bandyopadhyay, P. P., Paul, S. (2018). Effect of arc–current and spray distance on elastic modulus and fracture toughness of plasma-sprayed chromium oxide coatings. Friction, 6 (4): 387-394, [26] Sun, L., Pan, J., Lin, C. (2003). Wear behavior of TiC–MoSi2 composites. Materials Letters, 57 (7): 1239-1243,