Corrosion performances in simulated body fluids and cytotoxicity   evaluation of Fe-based bulk metallic glasses

doi:10.1016/j.msec.2011.12.018

CORC > 北京大学 > 工学院

	Corrosion performances in simulated body fluids and cytotoxicity evaluation of Fe-based bulk metallic glasses
	Wang, Y. B. ; Li, H. F. ; Zheng, Y. F. ; Li, M.
刊名	materials science engineering c materials for biological applications
	2012
关键词	Bulk metallic glass Corrosion Biocompatibility Electrochemical characterization Biomedical applications HUMAN U937 MACROPHAGES MECHANICAL-PROPERTIES STAINLESS-STEEL CHROMIUM IONS IN-VITRO FORMING ABILITY BEHAVIOR ALLOYS RESISTANCE BIOCOMPATIBILITY
DOI	10.1016/j.msec.2011.12.018
英文摘要	The aim of this work is to investigate the corrosion resistance and biocompatibility of three kinds of Fe based bulk metallic glasses (BMGs), Fe41Co7Cr15Mo14C15B6Y2 (BMG1), (Fe44Cr5Co5Mo13Mn11C16B6)(98)Y-2 (BMG2), and Fe48Cr15Mo14C15B6Er2 (BMG3) by electrochemical measurements and indirect contact cytotoxicity assays, respectively. In comparison with 316 L SS biomedical steel, Fe based BMGs show better corrosion resistance in both simulated body fluids (Hank's solution and artificial saliva). The OCP curves show that the passive film on the Fe based BMG surfaces is quite stable, like 316 L SS. The corrosion current densities obtained from the anodic polarization curves from the lowest to highest are as follows: BMG3 < BMG1 < BMG2 < 316 L SS. The EIS analysis indicates that the Fe Based BMGs have larger polarization resistance value than that of 316 L SS except for BMG2 in artificial saliva. The pitting corrosion potentials of Fe based BMGs are much higher than that of the 316 L SS, resulting in very few ions releasing into the electrolytes while a significant amount of Ni and Fe ions release was found for 316 L SS under the same condition. The indirect cytotoxicity results suggest that all three Fe based BMG extracts have no cytotoxicity to L929 and NIH3T3 cells. All these results demonstrate that Fe based BMGs will open up a new path for the biomedical applications, especially in dental implantology. (C) 2011 Elsevier B.V. All rights reserved.; Materials Science, Biomaterials; SCI(E); EI; 0; ARTICLE; 3; 599-606; 32
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/154637]
专题	工学院
推荐引用方式 GB/T 7714	Wang, Y. B.,Li, H. F.,Zheng, Y. F.,et al. Corrosion performances in simulated body fluids and cytotoxicity evaluation of Fe-based bulk metallic glasses[J]. materials science engineering c materials for biological applications,2012.
APA	Wang, Y. B.,Li, H. F.,Zheng, Y. F.,&Li, M..(2012).Corrosion performances in simulated body fluids and cytotoxicity evaluation of Fe-based bulk metallic glasses.materials science engineering c materials for biological applications.
MLA	Wang, Y. B.,et al."Corrosion performances in simulated body fluids and cytotoxicity evaluation of Fe-based bulk metallic glasses".materials science engineering c materials for biological applications (2012).