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Study on glass-forming ability and corrosion performance of Ca-based biomedical materials.
Feng, Jing; Wang, Yue; Liu, Dehua; Zhang, Yong; Geng, Guihong.
Afiliación
  • Feng J; 1School of Materials Science and Engineering, North Minzu University, Yinchuan 750021, P.R. China.
  • Wang Y; 1School of Materials Science and Engineering, North Minzu University, Yinchuan 750021, P.R. China.
  • Liu D; 1School of Materials Science and Engineering, North Minzu University, Yinchuan 750021, P.R. China.
  • Zhang Y; 2State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China.
  • Geng G; 1School of Materials Science and Engineering, North Minzu University, Yinchuan 750021, P.R. China.
Acta Bioeng Biomech ; 25(4): 93-101, 2023 Dec 01.
Article en En | MEDLINE | ID: mdl-39072468
ABSTRACT
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+x Mg20Zn27-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+x Mg20Zn27-x (x = 0, 2, 4), and Ca53+x Mg20Zn27-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.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Materiales Biocompatibles / Ensayo de Materiales / Calcio / Aleaciones / Vidrio Límite: Animals / Humans Idioma: En Revista: Acta Bioeng Biomech Asunto de la revista: ENGENHARIA BIOMEDICA / FISIOLOGIA Año: 2023 Tipo del documento: Article Pais de publicación: Polonia
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Materiales Biocompatibles / Ensayo de Materiales / Calcio / Aleaciones / Vidrio Límite: Animals / Humans Idioma: En Revista: Acta Bioeng Biomech Asunto de la revista: ENGENHARIA BIOMEDICA / FISIOLOGIA Año: 2023 Tipo del documento: Article Pais de publicación: Polonia