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Comparison of the effects of pre-activators on morphology and corrosion resistance of phosphate conversion coating on magnesium alloy

文献类型：期刊论文

作者Li, Tao1,3; Leng, Zhongjun1; Wang, Shifang1; Wang, Xitao1; Ghomashchi, Reza1,2; Yang, Yuansheng1,3; Zhou, Jixue1
刊名JOURNAL OF MAGNESIUM AND ALLOYS
出版日期2022-12-01
卷号10期号:12页码:3485-3494
ISSN号2213-9567
关键词Phosphate conversion coating Surface pre-activator Magnesium alloy Morphology Corrosion
DOI10.1016/j.jma.2021.03.012
通讯作者Li, Tao(litao@sdas.org) ; Zhou, Jixue(zhoujx@sdas.org)
英文摘要In this study, Mg-6.0Zn-3.0Sn-0.5Mn (ZTM630) magnesium alloy was pre-activated by colloidal Ti, oxalic acid, and phosphoric acid, and a phosphate conversion coating (PCC) was prepared on the alloy surface. The morphology and corrosion resistance of the prepared PCCs were investigated. Surface morphology studies showed that the phosphate crystals that formed the coating were the smallest for the sample pre-activated by phosphoric acid. The coating on the colloidal Ti and the phosphoric acid samples had the largest and the smallest thickness and surface roughness, respectively. The reason for the discrepancy was analyzed by comparing the surface morphologies of alloy samples immediately after the pre-activation treatment and various phosphating treatments. X-ray diffraction analysis revealed that all three PCCs contained the same compounds. The corrosion resistance time from the copper sulfate drop test and the electrochemical data from the potentiodynamic polarization curves showed that the coating pre-activated by phosphoric acid had the best corrosion resistance. Finally, the 1500 h neutral salt spray corrosion test confirmed that the phosphating treated magnesium alloy, which was pre-activated by phosphoric acid, exhibited excellent corrosion resistance and behavior. (c) 2021ChongqingUniversity. PublishingservicesprovidedbyElsevierB.V. onbehalfofKeAiCommunicationsCo. Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer review under responsibility of Chongqing University
资助项目National Key Research and Development Program of China[2017YFB0103904] ; National Key Research and Development Program of China[2016YFB0301105] ; National Natural Science Foundation of China[51804190] ; Youth Science Funds of Shandong Academy of Sciences[2020QN0022] ; Youth Innovation and Technology Support Program of Shandong Provincial Colleges and Universities[2020KJA002] ; Jinan Science & Technology Bureau[2019GXRC030]
WOS研究方向Metallurgy & Metallurgical Engineering
语种英语
出版者KEAI PUBLISHING LTD
WOS记录号WOS:000911252800014
资助机构National Key Research and Development Program of China ; National Natural Science Foundation of China ; Youth Science Funds of Shandong Academy of Sciences ; Youth Innovation and Technology Support Program of Shandong Provincial Colleges and Universities ; Jinan Science & Technology Bureau
源URL[http://ir.imr.ac.cn/handle/321006/175415]  
专题金属研究所_中国科学院金属研究所
通讯作者Li, Tao; Zhou, Jixue
作者单位1.Qilu Univ Technol, Adv Mat Inst, Shandong Prov Key Lab High Strength Lightweight M, Shandong Acad Sci, Jinan 250014, Peoples R China
2.Univ Adelaide, Sch Mech Engn, Adelaide, SA 5005, Australia
3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式
GB/T 7714		 Li, Tao,Leng, Zhongjun,Wang, Shifang,et al. Comparison of the effects of pre-activators on morphology and corrosion resistance of phosphate conversion coating on magnesium alloy[J]. JOURNAL OF MAGNESIUM AND ALLOYS,2022,10(12):3485-3494.
APA Li, Tao.,Leng, Zhongjun.,Wang, Shifang.,Wang, Xitao.,Ghomashchi, Reza.,...&Zhou, Jixue.(2022).Comparison of the effects of pre-activators on morphology and corrosion resistance of phosphate conversion coating on magnesium alloy.JOURNAL OF MAGNESIUM AND ALLOYS,10(12),3485-3494.
MLA Li, Tao,et al."Comparison of the effects of pre-activators on morphology and corrosion resistance of phosphate conversion coating on magnesium alloy".JOURNAL OF MAGNESIUM AND ALLOYS 10.12(2022):3485-3494.

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来源：金属研究所

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