Mechanical Properties and Corrosion Behaviors of Aged Ti-4Mo-4Cr-X (X = Sn, V, Zr) Alloys for Metallic Biomaterials

• Autorzy: Lee Kwangmin , Lee Gunhee

Identyfikatory

DOI

10.24425/amm.2020.133688

• Języki publikacji: EN

Abstrakty

EN

The purpose of this study was to investigate the mechanical properties of beta type aged Ti-4Mo-4Cr-X (X = V, Sn, Zr) quaternary alloy for use as a cardiovascular stent. Titanium (Ti) alloys were fabricated using a vacuum arc remelting furnace process. To homogenize the specimens of each composition and remove the micro segregation, all cast specimens were subjected to homogenization at 850°C for 4 h, which was 100°C higher than the β-transus temperature of 750°C. The tensile strength and elongation of the aged Ti-4Mo-4Cr-X (X = V, Sn, Zr) alloys were increased as compared to the homogenized alloys. In addition, many α/β interface boundaries formed after aging treatment at 450°C, which acted as inhibitors of strain and caused an increase in tensile strength. The elongation of Ti-4Mo-4Cr-X alloys consisting of α + β phases after aging treatment was improved by greater than 30%. Results of a potentiodynamic polarization test showed that the lowest current density of Ti-4Mo-4Cr-4Sn with1.05 × 10^-8 A/cm² was obtained. The present Ti-4Mo-4Cr-X alloys showed better corrosion characteristics as compared to the 316L stainless steel and L605 (Co-Cr alloy) cardiovascular stent alloys.

Słowa kluczowe

EN

beta Ti-alloy; metallic biomaterials; aging; potentiodynamic polarization

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2020
• Tom: Vol. 65, iss. 4
• Strony: 1297--1301
• Opis fizyczny: Bibliogr. 8 poz., fot., rys., tab.

Twórcy

autor

Lee Kwangmin

• Chonnam National University, School of Materials Science & Engineering, Gwangju, Republic of Korea

autor

Lee Gunhee

• 21 Century Medical Co. Ltd., Gwangju, Korea

Bibliografia

• [1] J. Zhang, F. Sun, Y. Hao, N. Gozdecki, E. Lebrun, P. Vermaut, R. Portier, T. Gloriant, P. Laheurte, F. Prima, Mater. Sci. Eng. A 563, 78-85 (2013).
• [2] G. Mani, M. D. Feldman, D. Patel, C. M. Agrawal, Biomater. 28, 1689 (2007).
• [3] Y. Song, D. S. Xu, R. Yang, D. Li, W. T. Wu, Z. X. Guo, Mater. Sci. Eng. A260, 269 (1999).
• [4] Y. L. Yang, W. Q. Wang, F. L. Li, W. Q. Li, Y. Q. Zhang, Mater. Sci. Forum, 618-619, 169-172 (2009).
• [5] R. Filip, K. Kubiak, W. Ziaja, J. Sieniawski, J. Mater. Process. Technol. 133, 84 (2003).
• [6] B. Vrancken, L. Thijs, J.-P. Kruth, J. Van Humbeeck, J. Alloy Compd. 541, 177 (2012).
• [7] Y. L. Zhou, D. M. Luo, J. Alloy Compd. 509, 6267 (2011).
• [8] S. Takemoto, M. Hattori, M. Yoshinari, E. Kawada, K. Asami,Y. Oda, Dent. Mater. 25, 467 (2009).

Uwagi

EN

1. This research was supported by the Basic Science Research Program of the National Research Foundation of Korea (NRF) funded by the Ministry of Education (No. 2015R1D1A1A01056861).

PL

2. Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).