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Super anticorrosion of aluminized steel by a controlled Mg supply.

作者信息

Jeong Jae In, Yang Ji Hoon, Jung Jae Hun, Lee Kyung Hwang, Kim Hye Jeong, Jung Yong Hwa, Kim Tae Yeob, Lee Myeong Hoon, Hwang Sung Hwa, Wu Ping, Kim Jae-Hun, Kim Sang Sub

机构信息

Materials Solution Research Group, Research Institute of Industrial Science & Technology, 67 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea.

Posco Smart Coating Technology-Dry Coating Project Dept., POSCO Gwangyang Research Lab., 20-26 Pokposarang-gil, Gwangyang, 57807, Republic of Korea.

出版信息

Sci Rep. 2018 Feb 28;8(1):3760. doi: 10.1038/s41598-018-22097-z.

DOI:10.1038/s41598-018-22097-z
PMID:29491373
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5830645/
Abstract

The current anticorrosion strategy makes use of coatings to passively protect the steel, which faces increasing challenge due to the tightened environmental regulations and high cost. This paper reports a new method for achieving a super anticorrosion function in Al-Si alloys through Mg nano-metallurgy, which was characterized by real-time synchrotron measurements. The unique function is based on the formation of an amorphous and self-charge-compensated MgAlO-SiO phase between the grain boundaries to help prevent the penetration of oxygen species through the grain boundaries. Through this, the corrosion resistance of pristine aluminized steel could be improved almost 20 fold. An analysis of the phases, microstructures of the Mg-coated aluminized layer and corrosion products consistently supported the proposed mechanism. This charge-compensated corrosion resistance mechanism provides novel insight into corrosion resistance.

摘要
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b24/5830645/295dda5262c1/41598_2018_22097_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b24/5830645/cadad07a85cb/41598_2018_22097_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b24/5830645/2f1d4846ba17/41598_2018_22097_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b24/5830645/654e45e2442e/41598_2018_22097_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b24/5830645/373d402b8c78/41598_2018_22097_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b24/5830645/671c3eb25b17/41598_2018_22097_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b24/5830645/4a9ecd9a284b/41598_2018_22097_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b24/5830645/002d6de4e3b7/41598_2018_22097_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b24/5830645/d23976182ae6/41598_2018_22097_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b24/5830645/295dda5262c1/41598_2018_22097_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b24/5830645/cadad07a85cb/41598_2018_22097_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b24/5830645/2f1d4846ba17/41598_2018_22097_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b24/5830645/654e45e2442e/41598_2018_22097_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b24/5830645/373d402b8c78/41598_2018_22097_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b24/5830645/671c3eb25b17/41598_2018_22097_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b24/5830645/4a9ecd9a284b/41598_2018_22097_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b24/5830645/002d6de4e3b7/41598_2018_22097_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b24/5830645/d23976182ae6/41598_2018_22097_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b24/5830645/295dda5262c1/41598_2018_22097_Fig9_HTML.jpg

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