Mechanical properties and corrosion resistance of powder metallurgical Mg-Zn-Ca/Fe bulk metal glass composites for biomedical application

作     者：Kun Li Luxin Liang Peng Du Zeyun Cai Tao Xiang Hiroyasu Kanetaka Hong Wu Guoqiang Xie Kun Li;Luxin Liang;Peng Du;Zeyun Cai;Tao Xiang;Hiroyasu Kanetaka;Hong Wu;Guoqiang Xie

作者机构：School of Materials Science and EngineeringHarbin Institute of Technology(Shenzhen)Shenzhen 518055China State Key Laboratory of Powder MetallurgyCentral South UniversityChangsha 410083China Graduate School of Biomedical EngineeringTohoku UniversitySendai980-8579Japan Graduate School of DentistryTohoku UniversitySendai 980-8575Japan State Key Laboratory of Advanced Welding and JoiningHarbin Institute of TechnologyHarbin 150001China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2022年第103卷第8期

页      面：73-83页

核心收录：

学科分类：08[工学] 080501[工学-材料物理与化学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：financially supported by the Shenzhen Knowledge Innovation Plan–Fundamental Research(Discipline Distribution)(No.JCYJ20180507184623297) the National Natural Science Foundation of China(Nos.51871077 and 51771233) the Shenzhen Science and Technology Plan–Technology Innovation(No.KQJSCX20180328165656256) Startup Foundation from Shenzhen and Startup Foundation from Harbin Institute of Technology(Shenzhen),Development and Reform Commission of Shenzhen Municipality-Shenzhen R&D Center for Al-based Hydrogen Hydrolysis Materials(No.ZX20190229) 

主　　题：Mg_(66)Zn_(30)Ca_(4)/Fe bulk metallic glass composites Spark plasma sintering Corrosion behaviour Mechanical strength 

摘      要：Magnesium(Mg)alloys can be regarded as the most promising biodegradable implant materials for orthopedic and stent applications due to their good biocompatibility and low Young’s modulus which is near to that of natural ***,its applicability is hindered because it exhibits a high corrosion rate in the physiological *** this work,we fabricated Mg_(66)Zn_(30)Ca_(4)/Fe bulk metallic glass composites via spark plasma sintering(SPS).We studied the influence of different contents of Fe on the properties of the *** results indicated that Fe was uniformly distributed on the surface of Mg_(66)Zn_(30)Ca_(4) metallic glass(MG)as a second phase,which led to an improvement in the corrosion resistance and mechanical *** standard potential of Mg_(66)Zn_(30)Ca_(4)/Fe bulk metallic glass(BMG)composites increased as compared to Mg_(66)Zn_(30)Ca_(4),while their mechanical strength improved from 355 MPa to 616 ***,cytotoxicity was investigated via the CCK-8 assay and calcein-AM staining,which revealed that the extraction mediums diluted 6 times(EM×6)of the Mg_(66)Zn_(30)Ca_(4) and Mg_(66)Zn_(30)Ca_(4)/Fe did not cause cell toxicity on day 3 and 5,while the EM×6 of the Mg_(66)Zn_(30)Ca_(4) showed cytotoxicity on day 1,3 and ***,Mg_(66)Zn_(30)Ca_(4)/Fe BMG composites exhibit significant potential for fabricating implants with good mechanical strength and corrosion resistance.