Improved corrosion resistance of Mg alloy by a green phosphating: insights into pre-activation, temperature, and growth mechanism

doi:10.1007/s10853-020-05288-w

IMR OpenIR

	Improved corrosion resistance of Mg alloy by a green phosphating: insights into pre-activation, temperature, and growth mechanism
	Li, Tao; Wang, Shifang; Liu, Hongtao; Wu, Jianhua; Tang, Shouqiu; Yang, Yuansheng; Wang, Xitao; Zhou, Jixue
	2021
Source Publication	JOURNAL OF MATERIALS SCIENCE
Volume	56 Issue:1 Pages:828-843
Abstract	Poor corrosion resistance of magnesium alloys remains a major obstacle to their extensive application. Phosphate conversion coating (PCC) is one of the most direct and effective strategies to enhance the corrosion resistance of magnesium alloys. To overcome the environmental damage of traditional phosphating technology, a PCC free of fluorine, chromium and nitrite was prepared in the present work. The effects of surface pre-activation process and preparation temperature on the surface morphology and corrosion resistance of PCC on ZK60 magnesium alloy were investigated. Surface pre-activation could significantly reduce the ultimate grain size of phosphate. At 90 degrees C, the prepared PCC showed perfect morphology and corrosion resistance. To better understand the phosphating nucleation and growth process, the surface and cross-sectional morphologies of PCC prepared for different times were observed. The phase composition of the prepared PCC was detected to be Hureaulite (Mn-5(PO4)(2)(PO3OH)(2)center dot 4H(2)O) and the coating growth mechanism was suggested in the end.
DOI	10.1007/s10853-020-05288-w
WOS ID	WOS:000569297000011
Citation statistics
Document Type	期刊论文
Identifier	http://ir.imr.ac.cn/handle/321006/82536
Collection	中国科学院金属研究所
Recommended Citation GB/T 7714	Li, Tao,Wang, Shifang,Liu, Hongtao,et al. Improved corrosion resistance of Mg alloy by a green phosphating: insights into pre-activation, temperature, and growth mechanism[J]. JOURNAL OF MATERIALS SCIENCE,2021,56(1):828-843.
APA	Li, Tao.,Wang, Shifang.,Liu, Hongtao.,Wu, Jianhua.,Tang, Shouqiu.,...&Zhou, Jixue.(2021).Improved corrosion resistance of Mg alloy by a green phosphating: insights into pre-activation, temperature, and growth mechanism.JOURNAL OF MATERIALS SCIENCE,56(1),828-843.
MLA	Li, Tao,et al."Improved corrosion resistance of Mg alloy by a green phosphating: insights into pre-activation, temperature, and growth mechanism".JOURNAL OF MATERIALS SCIENCE 56.1(2021):828-843.

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