Can Multifunctionality of Bioresorbable BMGs be Tuned by Controlling Crystallinity?

Abstract:

Ca-Mg-Zn bulk metallic glasses (BMGs) are promising biomaterials for orthopaedic applications because when they get reabsorbed, a retrieval surgery is not needed. In this study, Ca-Mg-Zn metallic glasses with different compositions, Ca_56.02Mg_20.26Zn_23.72 and Zn_50.72Mg_23.44Ca_25.84, were fabricated by induction melting followed by copper mould casting. Their degree of crystallinity was modified by annealing, obtaining exemplar specimens of fully amorphous, partially amorphous (i.e., a BMG composite (BMGC)) and fully crystalline alloys. The microstructure, thermodynamic and corrosion performance of these alloys were evaluated as well as their electrochemical behaviour. The results of polarisation tests demonstrate that the corrosion resistance of the Zn-rich alloy is markedly better than the Ca-rich BMG. Corrosion rates of these Ca-and Zn-rich alloys with different degrees of crystallinity illustrate that the corrosion behaviours of alloys strongly depend on their microstructure, which shows a positive correlation between the corrosion current density and the crystallised volume fraction of the alloy. This study aims to shed light on the impact of the amorphicity-to-crystallinity ratio on the multifunctional properties of BMGs/BMGCs, and to assess how feasible it is to fine-tune those properties by controlling the percentage of crystallinity.

• Periodical: Key Engineering Materials (Volume 967)
• Pages: 131-136
• DOI: https://doi.org/10.4028/p-InfGB6
• Online since: December 2023
• Authors: Shang Mou Yang*, Julia Hufenbach, Sergio Scudino, Paul P. Conway, Carmen Torres-Sanchez
• Keywords: Bioresorbable Metal, Bulk Metallic Glass, Ca-Mg-Zn Alloys, Crystallinity, Electrochemical Corrosion

References

[1] Puleo, D.A. and Huh, W.W., 1995. Acute toxicity of metal ions in cultures of osteogenic cells derived from bone marrow stromal cells. Journal of Applied Biomaterials, 6(2), pp.109-116.

DOI: 10.1002/jab.770060205

[2] Staiger, M.P., Pietak, A.M., Huadmai, J. and Dias, G., 2006. Magnesium and its alloys as orthopedic biomaterials: a review. Biomaterials, 27(9), pp.1728-1734.

DOI: 10.1016/j.biomaterials.2005.10.003

[3] Axinte, E., 2012. Metallic glasses from "alchemy" to pure science: Present and future of design, processing and applications of glassy metals. Materials & Design, 35, pp.518-556.

DOI: 10.1016/j.matdes.2011.09.028

[4] Wang, X., Gong, P. and Yao, K.F., 2016. Mechanical behavior of bulk metallic glass prepared by copper mold casting with reversed pressure. Journal of Materials Processing Technology, 237, pp.270-276.

DOI: 10.1016/j.jmatprotec.2016.06.023

[5] Gu, X., Zheng, Y., Zhong, S., Xi, T., Wang, J. and Wang, W., 2010. Corrosion of, and cellular responses to Mg–Zn–Ca bulk metallic glasses. Biomaterials, 31(6), pp.1093-1103.

DOI: 10.1016/j.biomaterials.2009.11.015

[6] Wang, Y.B., Xie, X.H., Li, H.F., Wang, X.L., Zhao, M.Z., Zhang, E.W., Bai, Y.J., Zheng, Y.F. and Qin, L., 2011. Biodegradable CaMgZn bulk metallic glass for potential skeletal application. Acta biomaterialia, 7(8), pp.3196-3208.

DOI: 10.1016/j.actbio.2011.04.027

[7] Wang, G., Liaw, P.K., Senkov, O.N., Miracle, D.B. and Morrison, M.L., 2009. Mechanical and Fatigue Behavior of Ca65Mg15Zn20 Bulk‐Metallic Glass. Advanced Engineering Materials, 11(1‐2), pp.27-34.

DOI: 10.1002/adem.200800313

[8] Morrison, M.L., Buchanan, R.A., Liaw, P.K., Senkov, O.N. and Miracle, D.B., 2006. Electrochemical behavior of Ca-based bulk metallic glasses. Metallurgical and Materials Transactions A, 37(4), pp.1239-1245.

DOI: 10.1007/s11661-006-1075-x

[9] Zberg, B., Uggowitzer, P.J. and Löffler, J.F., 2009. MgZnCa glasses without clinically observable hydrogen evolution for biodegradable implants. Nature materials, 8(11), pp.887-891.

DOI: 10.1038/nmat2542

[10] Li, H., Pang, S., Liu, Y., Sun, L., Liaw, P.K. and Zhang, T., 2015. Biodegradable Mg–Zn–Ca–Sr bulk metallic glasses with enhanced corrosion performance for biomedical applications. Materials & Design, 67, pp.9-19.

DOI: 10.1016/j.matdes.2014.10.085

[11] Mudali, U.K., Scudino, S., Kühn, U., Eckert, J. and Gebert, A., 2004. Polarisation behaviour of the Zr57Ti8Nb2. 5Cu13. 9Ni11. 1Al7. 5 alloy in different microstructural states in acid solutions. Scripta materialia, 50(11), pp.1379-1384.

DOI: 10.1016/j.scriptamat.2004.02.039

[12] Inoue, A., 2000. Stabilization of metallic supercooled liquid and bulk amorphous alloys. Acta materialia, 48(1), pp.279-306.

DOI: 10.1016/s1359-6454(99)00300-6

[13] Senkov, O.N. and Scott, J.M., 2005. Glass forming ability and thermal stability of ternary Ca–Mg–Zn bulk metallic glasses. Journal of non-crystalline solids, 351(37-39), pp.3087-3094.

DOI: 10.1016/j.jnoncrysol.2005.07.022

[14] Hu, L. and Ye, F., 2013. Crystallization kinetics of Ca65Mg15Zn20 bulk metallic glass. Journal of alloys and compounds, 557, pp.160-165.

DOI: 10.1016/j.jallcom.2012.12.158

[15] Chen, L.C. and Spaepen, F., 1988. Calorimetric evidence for the micro-quasicrystalline structure of'amorphous' Al/transition metal alloys. Nature, 336(6197), pp.366-368.

DOI: 10.1038/336366a0

[16] McCafferty, E., 2005. Validation of corrosion rates measured by the Tafel extrapolation method. Corrosion science, 47(12), pp.3202-3215.

DOI: 10.1016/j.corsci.2005.05.046

[17] Jiang, L., Chen, Z.Q., Lu, H.B., Ke, H.B., Yuan, Y., Dong, Y.M. and Meng, X.K., 2021. Corrosion protection of NiNb metallic glass coatings for 316SS by magnetron sputtering. Journal of Materials Science & Technology, 79, pp.88-98.

DOI: 10.1016/j.jmst.2020.12.004

[18] Wang, Y., Tan, M.J., Pang, J., Wang, Z. and Jarfors, A.W., 2012. In vitro corrosion behaviors of Mg67Zn28Ca5 alloy: from amorphous to crystalline. Materials Chemistry and Physics, 134(2-3), pp.1079-1087.

DOI: 10.1016/j.matchemphys.2012.03.116