Study on glass-forming ability and corrosion performance of Ca-based biomedical materials

• Autorzy: Feng Jing , Wang Yue , Liu Dehua , Yhang Yong , Geng Guihong

Identyfikatory

DOI

10.37190/ABB-02338-2023-03

• Języki publikacji: EN

Abstrakty

EN

Stress shielding and the need for secondary surgery are the two major challenges faced by permanent metallic implants, and the emerging Ca-Mg-Zn calcium-based bulk amorphous alloys, with Young’s modulus comparable to that of human bone, good biocompatibility, and in vivo degradation, are highly promising materials for bioimplants. Few studies have been reported on the glass formation ability (GFA) and corrosion degradation behavior of Ca-Mg-Zn amorphous alloys in the human body. In this work, we discuss a study on Ca53+xMg20Zn27–x (x = 0, 2, 4, 6, 8, 10) alloys, focusing on changes in Zn content near eutectic points and their impact on microstructure and biological corrosion behavior. A copper mold spray casting method has been developed to prepare amorphous bar alloys and amorphous crystalline composite bar alloys with a diameter of 3 mm, which has been verified by X-ray diffraction, electrochemical treatment, and immersion tests. The experimental results demonstrated that the Ca3Zn and CaZn2 phases were precipitated in the 3 mm bar material Ca53+xMg20Zn27–x (x = 0, 2, 4), and Ca53+xMg20Zn27–x (x = 6, 8, 10) was completely amorphous. The Ca63Mg20Zn17 alloy showed the best glass-forming ability, while the Ca59Mg20Zn21 alloy exhibited superior corrosion resistance. Cytotoxicity experiments showed that Ca-Mg-Zn alloys have good biocompatibility and can be used as biomedical materials.

Słowa kluczowe

EN

metallic glasses; microstructure; corrosion; crystallization

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Acta of Bioengineering and Biomechanics
• Rocznik: 2023
• Tom: Vol. 25, no. 4
• Strony: 93--101
• Opis fizyczny: Bibliogr. 15 poz., rys., tab., wykr.

Twórcy

autor

Feng Jing

• 1 School of Materials Science and Engineering, North Minzu University, Yinchuan 750021, P.R. China. 2 State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China

autor

Wang Yue

• 1 School of Materials Science and Engineering, North Minzu University, Yinchuan 750021, P.R. China. 2 State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China

autor

Liu Dehua

• 1 School of Materials Science and Engineering, North Minzu University, Yinchuan 750021, P.R. China. 2 State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China

autor

Yhang Yong

• 1 School of Materials Science and Engineering, North Minzu University, Yinchuan 750021, P.R. China. 2 State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China

autor

Geng Guihong

• 1 School of Materials Science and Engineering, North Minzu University, Yinchuan 750021, P.R. China. 2 State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China

Bibliografia

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