Evaluation of the Possibility to Improve the Scratch Resistance of the AZ91 Alloy by Applying a Coating

• Autorzy: Mróz Marek , Olszewska Sylwia , Rąb Patryk

Identyfikatory

DOI

10.24425/afe.2023.14669

• Języki publikacji: EN

Abstrakty

EN

This paper presents the possibility of improving the scratch resistance of the AZ91 magnesium alloy by applying a WCCoCr coating using the Air Plasma Spraying (APS) method. The coating thickness ranged from 140 to 160 μm. Microstructural studies of the AZ91 magnesium alloy were performed. The chemical composition of the WCCoCr powder was investigated. The quality of the bond at the substrate–coating interface was assessed and a microanalysis of the chemical composition of the coating was conducted. The scratch resistance of the AZ91 alloy and the WCCoCr coating was determined. The scratch resistance of the WCCoCr powder-based coating is much higher than the AZ91 alloy, as confirmed by scratch geometry measurements. The scratch width in the coating was almost three times smaller compared to the scratch in the substrate. Observations of the substrate–coating interface in the scratch area indicate no discontinuities. The absence of microcracks and delamination at the transition of the scratch from the substrate to the coating indicates good adhesion. On the basis of the study, it was found that there was great potential to use the WCCoCr powder coating to improve the abrasion resistance of castings made from the AZ91 alloy.

Słowa kluczowe

EN

AZ91 magnesium alloy; WCCoCr coating; microstructure; scratch test

PL

stop magnezu AZ91; powłoka WCCoCr; mikrostruktura; próba zarysowania

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2023
• Tom: Vol. 23, iss. 4
• Strony: 157--162
• Opis fizyczny: Bibliogr. 13 poz., il., tab., wykr.

Twórcy

autor

Mróz Marek

• Rzeszow University of Technology, Poland

• https://orcid.org/0000-0002-7433-4092

autor

Olszewska Sylwia

• Rzeszow University of Technology, Poland

• https://orcid.org/0000-0003-3424-6853

autor

Rąb Patryk

• Rzeszow University of Technology, Poland

• https://orcid.org/0000-0002-8559-5300

Bibliografia

• [1] Wanhill, R.J.H. (2017). Carbon fibre polymer matrix structural composites. Aerospace Materials and Material Technologies. 1, 309-341. https://doi.org/10.1007/978-981-10-2134-3_14.
• [2] Dziadoń, A. & Mola, R. (2013). Magnesium – directions of shaping mechanical properties. Obróbka plastyczna Metali. XXIV (4). (in Polish).
• [3] Mordike, B.L. & Ebert, T. (2001). Magnesium: Properties – application – potential. Materials Science and Engineering. 302(1), 37-45. DOI: 10.1016/S0921-5093(00)01351-4.
• [4] Wang, G.G. & Weiler, J.P. (2023). Recent developments in high-pressure die-cast magnesium alloys for automotive and future applications. Journal of Magnesium and Alloys. 11(1), 78 87. DOI: doi.org/10.1016/j.jma.2022.10.001.
• [5] Liu, B., Yang, J., Zhang, X., Yang, Q., Zhang, J., Li, X. (2022). Development and application of magnesium alloy parts for automotive OEMs: A review. Journal of Magnesium and Alloys. 11(1), 15-47. DOI: 10.1016/j.jma.2022.12.015.
• [6] Janik, B. (2011). Application of magnesium alloys in aviation. Prace Instytutu Lotnictwa. 57(221), 102-108. (in Polish).
• [7] Prasad, S.V.S., Prasad, S.B., Verma, K., Mishra, R.K., Kumar, V. & Singh, S. (2021). The role and significance of Magnesium in modern day research – A review. Journal of Magnesium and alloys. 10(1), 1-61. DOI: 10.1016/j.jma.2021.05.012.
• [8] Blawert, C., Hort, N. & Kainer, K.U. (2004). Automotive applications of magnesium and its alloys. Transaction of the Indian Institute of Metals. 57(4), 397-408.
• [9] Chen, H. & Alpas A.T. (2000). Sliding wear map for the magnesium alloy Mg-9Al-0.9Zn (AZ91). Wear. 246(1-2), 106-116. DOI: 10.1016/S0043-1648(00)00495-6.
• [10] Walczak, M., Caban, J. & Pliżga, P. (2015). Tribological characteristic of magnesium alloys used in means of transport. TTS Technika Transportu Szynowego. 22(12), 1614-1617.
• [11] Parco, M., Zhao, L., Zwick, J., Bobzin, K. & Lugscheider, E. (2007). Investigation of particle flattening behaviour and bonding mechanisms of APS sprayed coatings on magnesium alloys. Surface and Coating Technology. 201(14), 6290-6296. DOI: 10.1016/j.surfcoat.2006.11.034.
• [12] Morelli, S., Rombol`a, G., Bolelli, G., Lopresti, M., Puddu, P, Boccaleri, E., Seralessandri, L., Palin, L., Testa, V., Milanesio, M. & Lusvarghi, L. (2022). Hard ultralight systems by thermal spray deposition of WC-CoCr onto AZ31 magnesium alloy. Surface and Coating Technology. 451, 129056 1-26. DOI.org/10.1016/j.surfcoat.2022.129056.
• [13] Gray, J.E. & Luan, B. (2002). Protective coatings on magnesium and its alloys – a critical review. Journal of Allys and Compounds. 336(1-2), 88-113. DOI: 10.1016/S0925-8388(01)01899-0.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024)