Influence of Sc on the microstructure, degradation behavior, biocompatibility in vitro and mechanical property of Mg-2Zn-0.2Zr alloy

被引：22

作者：

He, Yuqing ^{[1
]}

Wang, Richu ^{[1
,2
]}

Yang, Liuzhong ^{[1
]}

Yang, Linyi ^{[3
]}

Liu, Hanchuan ^{[3
]}

Wang, Xinfa ^{[3
]}

Peng, Chaoqun ^{[1
]}

Feng, Yan ^{[1
,2
]}

机构：

[1] Cent South Univ, Sch Mat Sci & Engn, Changsha 410083, Peoples R China

[2] Cent South Univ, Natl Key Lab Sci & Technol High Strength Struct M, Changsha 410083, Peoples R China

[3] Wuhan Sci & Technol Dev Ctr China Ship Res & Dev, Wuhan 430064, Peoples R China

来源：

MATERIALS & DESIGN | 2022年 / 221卷

关键词：

Mg alloy; Degradation behavior; Biocompatibility; Mechanical property; ELECTROCHEMICAL CORROSION BEHAVIOR; HIGH-PURITY MG; MAGNESIUM ALLOY; POTENTIODYNAMIC POLARIZATION; AZ31; SEGREGATION; AZ91; SIZE; SR; CYTOTOXICITY;

D O I：

10.1016/j.matdes.2022.110863

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Microstructure, degradation behavior in vitro and mechanical property of as-extruded Mg-2Zn-0.2Zr-xSc (x = 0, 0.2, 0.4, 0.6, 0.8, wt.%) alloys was investigated. Fine rod-like Mg(Zn,Sc,Zr) phase in as-extruded ZK-(0.4-0.8)Sc alloys inhibits recrystallized grains growth, resulting in grain refinement. The addition of Sc decreases the degradation rate in vitro and improves the mechanical property of ZK20 alloy. All tested alloys had no cytotoxicity effect on HUVEC and MC3T3-E1 cells. This work provides a better understanding on adding Sc as alloying element for biomedical Mg alloys with superior mechanical property, slower degradation rate and good biocompatibility. (C) 2022 The Authors. Published by Elsevier Ltd.

引用

页数：17

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