In vitro study on degradation of AZ31B magnesium alloy with fluoride conversion coating

doi:10.1080/10667857.2016.1262311

CORC > 金属研究所 > 中国科学院金属研究所

	In vitro study on degradation of AZ31B magnesium alloy with fluoride conversion coating
	Li, Q.1; Zhu, P.1; Chen, S.2; Zhang, B.2; Yang, K.2
刊名	MATERIALS TECHNOLOGY
	2017
卷号	32 期号:7 页码:409-414
关键词	AZ31B magnesium alloy degradation fluoride conversion coating
ISSN号	1066-7857
DOI	10.1080/10667857.2016.1262311
通讯作者	Chen, S.(sschen@imr.ac.cn)
英文摘要	Fluoride chemical conversion treatment is an effective way to improve the corrosion resistance and inhibit pitting corrosion for magnesium alloys. In this study, the degradation process and why the coating inhibited pitting corrosion were investigated. In vitro degradation of AZ31B magnesium alloy with fluoride conversion coating was studied by immersing test. During degradation, magnesium fluoride in the coating could dissolve into F ion and Mg ions, the later could immediately react with OH- to form Mg(OH)(2) deposition. Then sample was covered by a layer of degradation products, which were mainly composed of Mg(OH)(2). Owning to the low solubility of MgF2, formation rate of Mg(OH)(2) was slow, giving rise to an even corrosion resistant coating. As H2O and Cl- penetrating to the alloy substrate, the alloy began to degrade forming Mg(OH)(2) and H-2. Above all, the degradation of fluoride treated magnesium alloy was gentle and inward to migration layer by layer.
资助项目	National Key Research and Development Program of China[2016YFC1102404] ; Jiangsu Innovation Center for Biomaterials
WOS研究方向	Materials Science
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000401156300003
资助机构	National Key Research and Development Program of China ; Jiangsu Innovation Center for Biomaterials
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/124293]
专题	金属研究所_中国科学院金属研究所
通讯作者	Chen, S.
作者单位	1.Liaoning Univ, Inst Chem Sci, 66 Chongshan Rd, Shenyang 110036, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang, Peoples R China
推荐引用方式 GB/T 7714	Li, Q.,Zhu, P.,Chen, S.,et al. In vitro study on degradation of AZ31B magnesium alloy with fluoride conversion coating[J]. MATERIALS TECHNOLOGY,2017,32(7):409-414.
APA	Li, Q.,Zhu, P.,Chen, S.,Zhang, B.,&Yang, K..(2017).In vitro study on degradation of AZ31B magnesium alloy with fluoride conversion coating.MATERIALS TECHNOLOGY,32(7),409-414.
MLA	Li, Q.,et al."In vitro study on degradation of AZ31B magnesium alloy with fluoride conversion coating".MATERIALS TECHNOLOGY 32.7(2017):409-414.