Influence of solution temperature on corrosion resistance of Zn-Ca phosphate conversion coating on biomedical Mg-Li-Ca alloys

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	Influence of solution temperature on corrosion resistance of Zn-Ca phosphate conversion coating on biomedical Mg-Li-Ca alloys
	R. C. Zeng; X. X. Sun; Y. W. Song; F. Zhang; S. Q. Li; H. Z. Cui; E. H. Han
	2013
发表期刊	Transactions of Nonferrous Metals Society of China
ISSN	1003-6326
卷号	23 期号:11 页码:3293-3299
摘要	The influence of phosphating bath at different temperatures on the formation and corrosion property of calcium-modified zinc phosphate conversion coating (Zn-Ca-P coating) on Mg-Li-Ca alloy was investigated. The morphologies, elemental distribution and chemical structures of the coatings were examined via SEM, EPMA, EDS, XRD and FT-IR. The corrosion resistance was assessed by hydrogen evolution, potentiodynamic polarization and EIS. The results show that the coating is composed of single element Zn and ZnO at below 45 degrees C; whereas the coatings are predominantly characterized by Zn-3(PO4)(2)center dot 4H(2)O and small amount of element zinc and ZnO at above 50 degrees C. Mg-Li-Ca alloy with Zn-Ca-P coatings prepared at 55 degrees C has the highest corrosion resistance. However, the hydrogen evolution rates of the coatings obtained at 40-50 degrees C is accelerated due to the galvanic corrosion between the imperfection of the single element Zn coating and the Mg substrate.
部门归属	[zeng, rong-chang ; sun, xin-xin ; zhang, fen ; li, shuo-qi ; cui, hong-zhi] shandong univ sci & technol, coll mat sci & engn, qingdao 266590, peoples r china. [zeng, rong-chang ; song, ying-wei ; han, en-hou] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. ; zeng, rc (reprint author), shandong univ sci & technol, coll mat sci & engn, qingdao 266590, peoples r china. ; rczeng@foxmail.com
关键词	Magnesium Alloy Lithium Calcium Phosphate Conversion Coating Corrosion Biomaterial Az91d Magnesium Alloy In-vivo Corrosion Zinc Phosphate Hanks Solution Mg-8li Alloy Az31 Film Oxidation Behavior Vitro
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/72374
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	R. C. Zeng,X. X. Sun,Y. W. Song,et al. Influence of solution temperature on corrosion resistance of Zn-Ca phosphate conversion coating on biomedical Mg-Li-Ca alloys[J]. Transactions of Nonferrous Metals Society of China,2013,23(11):3293-3299.
APA	R. C. Zeng.,X. X. Sun.,Y. W. Song.,F. Zhang.,S. Q. Li.,...&E. H. Han.(2013).Influence of solution temperature on corrosion resistance of Zn-Ca phosphate conversion coating on biomedical Mg-Li-Ca alloys.Transactions of Nonferrous Metals Society of China,23(11),3293-3299.
MLA	R. C. Zeng,et al."Influence of solution temperature on corrosion resistance of Zn-Ca phosphate conversion coating on biomedical Mg-Li-Ca alloys".Transactions of Nonferrous Metals Society of China 23.11(2013):3293-3299.