In Vitro Corrosion Study of Selected Laser Melted WE43 Magnesium Alloy in Hank ́s Balanced Salt Solution

Abstract:

Magnesium (Mg) and its alloys have been intensively investigated as potential biocompatible materials with appropriate structural, mechanical and corrosion properties for preferable orthopedic applications. Selective Laser Melting (SLM) technique was developed for the fabrication of three-dimensional components with high structural integrity at a low cost and is compatible with various materials, including biocompatible magnesium alloys. In this study, WE43 magnesium alloy samples produced by SLM technique were examined by in vitro static test in Hank's balanced salt solution (HBSS) under physiological temperature conditions for six days. A hydrogen evolution method for the estimation of the corrosion rate was used. The phase composition of samples before and after the immersion test was investigated by X-ray diffraction (XRD). The surface morphology and chemical composition of the initial material and tested samples were characterized by scanning electron microscope (SEM) equipped with energy dispersive X-ray spectroscopy (EDX).

• Periodical: Key Engineering Materials (Volume 923)
• Pages: 113-118
• DOI: https://doi.org/10.4028/p-i214k4
• Online since: June 2022
• Authors: Vendula Bednaříková*, Lenka Klakurková, Michaela Remešová, Miroslava Horynová, Jan Suchý, David Paloušek, Ladislav Čelko
• Keywords: Corrosion Rate, Hank ́s Solution, Magnesium Alloy, Selective Laser Melting, WE43

References

[1] G. L. Song, A. Atrens, D. John, An hydrogen evolution method for the estimation of the corrosion rate of magnesium alloys, in: S.N. Mathaudhu, A. A. Luo, N. R. Neelameggham, E. A. Nyberg, W. H. Sillekens (Eds.), Essential Readings in Magnesium Technology, Springer, Queensland, 2016, pp.565-572.

DOI: 10.1002/9781118859803.ch90

[2] N. Li, C. Guo, Y. H. Wu, Y. F. Zheng, L. Q. Ruan, Comparative study on corrosion behaviour of pure Mg and WE43 alloy in static, stirring and flowing Hanks solution. Corros. Eng. Sci. Technol., 47 (2013), pp.346-351.

DOI: 10.1179/1743278212y.0000000006

[3] H. Waizy, A. Weizbauer, Ch. Modrejewski, F. Witte, F. Windhagen, A. Lucas, M. Kieke, B. Denkana, P. Behrens, A. Meyer-Lindenberg, F.-W. Bach, F. Thorey, In vitro corrosion of ZEK100 plates in Hank's Balanced Salt Solution, Biomed. Eng. Online, 11 (2012).

DOI: 10.1186/1475-925x-11-12

[4] G. L. Song, Corrosion behavior and prevention strategies for magnesium (Mg) alloys, in: G.-L. Song (Eds.), Corrosion Prevention of Magnesium Alloys, Woodhead Publishing, 2013, pp.3-37.

DOI: 10.1533/9780857098962.1.3

[5] J. Suchy, M. Horynova, L. Klakurkova, D. Palousek, D. Koutny, L. Celko, Effect of Laser Parameters on Processing of Biodegradable Magnesium Alloy WE43 via Selective Laser Melting Method, Materials, 13 (2020), p.2623.

DOI: 10.3390/ma13112623

[6] Y. Lu, P. Wan, B. Zhang, L. Tan, K. Yang and J. Lin, Research on the corrosion resistance and formation of double-layer calcium phosphate coating on AZ31 obtained at varied temperatures, Mater. Sci. Eng. C., 163 (2014), pp.264-271.

DOI: 10.1016/j.msec.2014.06.039

[7] A. Atrens, G. L. Song, M. Liu, Z. Shi, F. Cao, M. S. Dargush, Review of Recent Developments in the Field of Magnesium Corrosion, Adv. Eng. Mater., 17 (2015), pp.400-453.

DOI: 10.1002/adem.201400434

[8] J. Gonzales, R. Q. Hou, E. P. S. Nidadavolu, R. Willumeit-Römer, F. Feyerabend, Magnesium degradation under physiological conditions – Best Practice, Bioact. Mater., 3 (2018), pp.174-185.

DOI: 10.1016/j.bioactmat.2018.01.003

[9] X. Zhang, G. Yuan, L. Mao, J. Niu, W. Ding, Biocorrosion properties of as-extruded Mg–Nd–Zn–Zr alloy compared with commercial AZ31 and WE43 alloys, Mater. Letters, 66 (2012), pp.209-211.

DOI: 10.1016/j.matlet.2011.08.079