Ti-Zr-Cu-Fe-Sn-Si-Ag-Ta bulk metallic glasses with good corrosion resistance as potential biomaterials

作     者：Ying Liu Hao-Jie Wang Shu-Jie Pang Tao Zhang Ying Liu;Hao-Jie Wang;Shu-Jie Pang;Tao Zhang

作者机构：Key Laboratory of Aerospace Materials and Performance(Ministry of Education)School of Materials Science and EngineeringBeihang UniversityBeijing 100191China School of Physics and Nuclear Energy EngineeringBeihang UniversityBeijing 100191China Beijing Advanced Innovation Centre for Biomedical EngineeringBeihang UniversityBeijing 100191China 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2020年第39卷第6期

页      面：688-694页

核心收录：

学科分类：08[工学] 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 National Natural Science Foundation of China(Nos.51671008 and 51701008) the Aeronautical Science Foundation of China(No.2013ZE51060) China Postdoctoral Science Foundation(No.2017M620575) 

主　　题：Ti-based alloy Bulk metallic glass Glass forming ability Bio-corrosion resistance Mechanical properties 

摘      要：Ti47Cu38-xZr7.5Fe2.5Sn2 Si1 Ag2 Tax(x=1-4;at%,the same below)bulk metallic glasses(BMGs)with good bio-corrosion resistance and mechanical properties were fabricated by copper mold *** diameter of the Ti-based BMGs with 1 at%-4 at%Ta was 3 *** Ta-incorporated Ti-based BMGs exhibit higher open current potential and parallel passive current density in comparison with those of Ti-6 Al-4 V alloy in 0.9 wt%NaCl and Hank’s solution,implying their good corrosion *** pitting corrosion potential of the Ti-based BMGs gradually increases up to about 1.25 V with Ta addition increasing up to 4 at%in 0.9 wt%NaCl *** the present Ti-based BMGs,the alloy bearing2 at%Ta exhibits the optimal integration of mechanical properties,including the compressive fracture strength exceeding 2000 MPa,relative low Young’s modulus of98 GPa,plastic strain of 3.4%and high hardness of *** Ta-bearing Ti-based bulk metallic glasses with integration of relative high GFA,good mechanical properties and high bio-corrosion resistance are beneficial for biomedical applications.