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

doi:10.1080/10667857.2016.1262311

IMR OpenIR

	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
通讯作者	Chen, S.(sschen@imr.ac.cn)
	2017
发表期刊	MATERIALS TECHNOLOGY
ISSN	1066-7857
卷号	32 期号:7 页码:409-414
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.
关键词	AZ31B magnesium alloy degradation fluoride conversion coating
资助者	National Key Research and Development Program of China ; Jiangsu Innovation Center for Biomaterials
DOI	10.1080/10667857.2016.1262311
收录类别	SCI
语种	英语
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
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000401156300003
出版者	TAYLOR & FRANCIS LTD
引用统计	被引频次：22[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/124294
专题	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.