Improvements in mechanical, corrosion, and biocompatibility properties of Mg–Zr–Sr–Dy alloys via extrusion for biodegradable implant applications

doi:10.1016/j.jma.2023.09.031

科研成果详情

题名	Improvements in mechanical, corrosion, and biocompatibility properties of Mg–Zr–Sr–Dy alloys via extrusion for biodegradable implant applications
作者	Kiani, Faisal 1; Lin, Jixing2; Munir, Khurram 1; Wen, Cuie 1; Li, Yuncang 1
发表日期	2023
发表期刊	Journal of Magnesium and Alloys; 影响因子和分区
语种	英语
原始文献类型	Article
关键词	Corrosion Cytotoxicity Mg–Zr–Sr–Dy alloy Microstructure mechanical properties Mg-Zr-Sr-Dy alloy.
其他关键词	AZ31 MAGNESIUM ALLOY ; RARE-EARTH-ELEMENTS ; DYNAMIC RECRYSTALLIZATION ; TEXTURE EVOLUTION ; DEFORMATION-BEHAVIOR ; PURE MAGNESIUM ; IN-VITRO ; ELECTROCHEMICAL-BEHAVIOR ; PLASTIC-DEFORMATION ; HOT DEFORMATION
摘要	In this study, extrusion was performed on Mg‒Zr‒Sr‒Dy alloys for improving their mechanical, corrosion, and biocompatibility properties. Effects of extrusion and alloying elements on the microstructural characteristics, tensile and compressive strengths, corrosion behavior, and biocompatibility were investigated. The Mg‒Zr‒Sr‒Dy alloys were composed of an α-Mg matrix containing {101¯2} extension twins and secondary phases of intermetallic compounds Mg17Sr2 and Mg2Dy. Evolution of basal and rare earth (RE) textures was observed in the extruded alloys and an increase in Dy content to 2 wt.% resulted in texture randomization and strengthening of the RE component, mainly due to particle-stimulated nucleation and a change from discontinuous dynamic recrystallization to continuous dynamic recrystallization, which also led to an improved tension–compression yield asymmetry of 0.87. Extrusion of the alloys significantly enhanced their tensile and compressive properties due to improved distribution of alloying elements and formation of textures. Corrosion rates tested by hydrogen evolution testing, potentiodynamic polarization, and electrical impedance spectroscopy showed similar trends for each composition, and the lowest corrosion rate of 3.37 mmy−1 was observed for the Mg-1Zr-0.5Sr-1Dy in the potentiodynamic polarization testing. Dy2O3 was observed in the inner layers of the Mg(OH)2 protective films, whose protective efficacy was confirmed by charge-transfer and film resistances. A comparison among the minimum CRs observed in this study and previously studied as-cast Mg‒Zr‒Sr‒Dy and extruded Mg‒Zr‒Sr alloys, demonstrates that both the extrusion process and addition of Dy in Mg‒Zr‒Sr improved the CR. Similarly, extruded Mg–Zr–Sr–Dy alloys showed improved cell viability and adhesion of human osteoblast–like SaOS2 cells due to increased corrosion resistance and enhanced Sr distribution within the Mg matrix.
资助项目	Australian Research Council[DP170102557,FT160100252];
出版者	KeAi Communications Co.
ISSN	2213-9567
卷号	11 期号:10 页码:3840-3865
DOI	10.1016/j.jma.2023.09.031
页数	26
WOS类目	Metallurgy & Metallurgical Engineering
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001124582700001
收录类别	SCOPUS ; EI ; SCIE
EI入藏号	20234515024509
EI主题词	Rare earths
EI分类号	461.9.1 Immunology ; 531 Metallurgy and Metallography ; 531.1 Metallurgy ; 539.1 Metals Corrosion ; 542.2 Magnesium and Alloys ; 547.2 Rare Earth Metals ; 549.2 Alkaline Earth Metals ; 802.2 Chemical Reactions ; 804.2 Inorganic Compounds ; 933.1 Crystalline Solids
URL	查看原文
SCOPUSEID	2-s2.0-85175726370
通讯作者地址	[Li, Yuncang]School of Engineering,RMIT University,Melbourne,3001,Australia
Scopus学科分类	Mechanics of Materials;Metals and Alloys
引用统计
文献类型	期刊论文
条目标识符	https://kms.wmu.edu.cn/handle/3ETUA0LF/184644
专题	口腔医学院、附属口腔医院
通讯作者	Li, Yuncang
作者单位	1.School of Engineering,RMIT University,Melbourne,3001,Australia; 2.School and Hospital of Stomatology,Wenzhou Medical University,Wenzhou,325027,China
推荐引用方式 GB/T 7714	Kiani, Faisal,Lin, Jixing,Munir, Khurram,et al. Improvements in mechanical, corrosion, and biocompatibility properties of Mg–Zr–Sr–Dy alloys via extrusion for biodegradable implant applications[J]. Journal of Magnesium and Alloys;,2023,11(10):3840-3865.
APA	Kiani, Faisal, Lin, Jixing, Munir, Khurram, Wen, Cuie, & Li, Yuncang. (2023). Improvements in mechanical, corrosion, and biocompatibility properties of Mg–Zr–Sr–Dy alloys via extrusion for biodegradable implant applications. Journal of Magnesium and Alloys;, 11(10), 3840-3865.
MLA	Kiani, Faisal,et al."Improvements in mechanical, corrosion, and biocompatibility properties of Mg–Zr–Sr–Dy alloys via extrusion for biodegradable implant applications".Journal of Magnesium and Alloys; 11.10(2023):3840-3865.