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Secondary spreading of acidified aerosols on the surface of Zn
Liu, Miaoran; Yin, Qi; Liu, Yuwei; Pan, Chen; Wang, Chuan; Wang, Zhenyao
2020-05-07
Source PublicationJOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
Volume9Issue:3Pages:2635-2644
AbstractSecondary spreading of acidified sodium chloride (NaCl) aerosol droplets on the surface of zinc have been studied. The in -situ observation of the secondary spreading, corrosion morphology, corrosion products under different position and volume loss are used to under- stand the secondary spreading of the acidified aerosol. The results reveal that the secondary spreading effect of NaCl aerosol droplet is more pronounced compared to the acidified aerosol droplets which are mainly embodied in larger spreading region and faster spread- ing rate. The difference of the secondary spreading effect is associated with acidification which inhibits the increase in the pH at the periphery. Furthermore, lower corrosion rate was observed for the acidified aerosol droplets due to smaller secondary spreading area (cathodic region). The main corrosion product in the center of NaCl aerosol droplet and the aerosol droplet acidified by HCl is Simonkolleite, while for the aerosol droplet acidified by H2SO4 which shows several different corrosion morphologies in the center, the main corrosion products are Gordaite, Simonkolleite and Zn4Cl2(OH)(4)SO4 center dot 5H(2)O. The formation of protective corrosion products Gordaite that can inhibit the anodic reaction leads to the smallest spreading area and the lowest corrosion rate for the aerosol droplet acidified by H2SO4. (C) 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
DOI10.1016/j.jmrt.2019.12.091
WOS IDWOS:000547380500003
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/82894
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Liu, Miaoran,Yin, Qi,Liu, Yuwei,et al. Secondary spreading of acidified aerosols on the surface of Zn[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2020,9(3):2635-2644.
APA Liu, Miaoran,Yin, Qi,Liu, Yuwei,Pan, Chen,Wang, Chuan,&Wang, Zhenyao.(2020).Secondary spreading of acidified aerosols on the surface of Zn.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,9(3),2635-2644.
MLA Liu, Miaoran,et al."Secondary spreading of acidified aerosols on the surface of Zn".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 9.3(2020):2635-2644.
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