微观结构对Mg-Ca-Zn-Y-Mn合金降解行为和生物相容性的影响

IF 13.8 1区材料科学 Q1 METALLURGY & METALLURGICAL ENGINEERING

Journal of Magnesium and Alloys Pub Date : 2025-09-16 DOI:10.1016/j.jma.2025.08.001

Diana C. Martinez, Anna Dobkowska, Alessia Paradiso, Daria Drozdenko, Andrea Farkas, Kristián Máthis, Péter Jenei, Péter Nagy, Jenő Gubicza, Shin-ichi Inoue, Yoshihito Kawamura, Wojciech Święszkowski

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引用次数: 0

摘要

本文研究了退火对快速凝固粉末冶金制备的Mg-1.0Ca-0.5Zn-0.1Y-0.03Mn （at. %）合金显微组织和后续腐蚀及生物性能的影响。300℃退火2 h后晶粒尺寸变化不明显；Mg2Ca析出物有轻微的生长。当退火温度升高至400℃，保温2 h时，合金发生完全再结晶；晶粒和沉淀物明显增多。这些变化降低了合金的腐蚀性能和抗摩擦腐蚀性能。由于对腐蚀介质的抵抗力降低，细胞活力也降低了。虽然退火后的MG63细胞发育成丝状足，但未观察到细胞间的通讯。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

The role of microstructure on the degradation behavior and biocompatibility of Mg-Ca-Zn-Y-Mn alloy

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The role of microstructure on the degradation behavior and biocompatibility of Mg-Ca-Zn-Y-Mn alloy

In this study, the effect of annealing on the microstructure and following corrosion and biological properties of Mg-1.0Ca-0.5Zn-0.1Y-0.03Mn (at. %) alloy prepared by rapid solidified powder metallurgy was investigated. The annealing at 300 °C for 2 h did not change the grain size significantly; however, a slight growth of Mg₂Ca precipitates was observed. When the annealing temperature increased up to 400 °C for 2 h, full recrystallization of the alloy occurred; the grains and precipitates grew noticeably. Those changes were responsible for decreasing the corrosion and the tribocorrosion resistance of the alloy. Due to lowered resistance to the corrosion medium, the cell viability was also reduced. Although MG63 cells on the annealed specimens developed filopodia, cell-to-cell communication was not observed.

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来源期刊

Journal of Magnesium and Alloys Engineering-Mechanics of Materials

CiteScore

20.20

自引率

14.80%

发文量

审稿时长

59 days

期刊介绍： The Journal of Magnesium and Alloys serves as a global platform for both theoretical and experimental studies in magnesium science and engineering. It welcomes submissions investigating various scientific and engineering factors impacting the metallurgy, processing, microstructure, properties, and applications of magnesium and alloys. The journal covers all aspects of magnesium and alloy research, including raw materials, alloy casting, extrusion and deformation, corrosion and surface treatment, joining and machining, simulation and modeling, microstructure evolution and mechanical properties, new alloy development, magnesium-based composites, bio-materials and energy materials, applications, and recycling.