Issue 2, 2016
From the journal:

New Journal of Chemistry

Formation and corrosion resistance of a phosphate chemical conversion coating on medium carbon low alloy steel

Cong-cong Jiang,abc   Gui-yong Xiao,abc   Xian Zhang,abc   Rui-fu Zhu*abc  and  Yu-peng Lu*abc  

* Corresponding authors

a Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Ji'nan, China
E-mail: ruifuzh@sdu.edu.cn
Fax: +86-0531-88395966
Tel: +86-0531-88395966

b School of Materials Science and Engineering, Shandong University, Ji'nan, China
E-mail: biosdu@sdu.edu.cn
Fax: +86-0531-88395966
Tel: +86-0531-88395966

c Suzhou Institute, Shandong University, Suzhou, China

Abstract

Chemical conversion coatings have attracted much attention in recent years due to their excellent characteristics such as corrosion resistance, wear resistance, adhesion and lubrication. In this study, a phosphate chemical conversion (PCC) coating was fabricated on medium carbon low alloy steel using a facile PCC method with Fe2+ curing process at room temperature. It is shown that the coating was composed of hopeite (Zn3(PO4)2·4H2O) and minor phosphophyllite (Zn2Fe(PO4)2·4H2O) in the form of fine and flaky crystals along the direction inclined or perpendicular to the substrate surface. The adhesive test indicated that the PCC coating was strongly attached on the substrate. Electrochemical analysis revealed that the as-prepared coating imparted better corrosion resistance to the steel substrate.

Graphical abstract: Formation and corrosion resistance of a phosphate chemical conversion coating on medium carbon low alloy steel

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Article information

DOI
https://doi.org/10.1039/C5NJ02245B
Article type
Paper
Submitted
27 Aug 2015
Accepted
09 Nov 2015
First published
16 Nov 2015

New J. Chem., 2016,40, 1347-1353

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Formation and corrosion resistance of a phosphate chemical conversion coating on medium carbon low alloy steel

C. Jiang, G. Xiao, X. Zhang, R. Zhu and Y. Lu, New J. Chem., 2016, 40, 1347 DOI: 10.1039/C5NJ02245B

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