CORROSION RESISTANCE OF COLD-SPRAYED CrZrCu ALLOY COATING IN SEAWATER

J Chin Soc Corr Pro

2012, Vol. 32

Issue (1): 18-22 DOI:

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CORROSION RESISTANCE OF COLD-SPRAYED CrZrCu ALLOY COATING IN SEAWATER

XIAO Zhengtao^1,2, LI Xiangbo², WANG Jia¹, HUANG Guosheng², ZHOU Xiong^2,3

1. College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100
2. Science and Technology on Marine Corrosion and Protection Laboratory, Luoyang Ship Materials Research Institute,Qingdao 266101
3. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University,Chengdu 610500

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Abstract CrZrCu alloy coating was deposited on the steel substrate using the cold spray technology. The morphologies of CrZrCu alloy coating were investigated by means of scanning electron microscope (SEM). The corrosion behaviors of CrZrCu alloy coatings in seawater were characterized by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). The X-ray diffraction (XRD) results of corrosion products and scanning electron microscopy (SEM) analysis of corrosion surface were used to comparatively investigate the corrosion properties of CrZrCu alloy coating. The results indicated that CrZrCu alloy coating has a more dense microstructure. CrZrCu alloy coating has good corrosion resistance, and the corrosion rate of CrZrCu alloy coatings retained a low level with time.

Key words: cold-spray CrZrCu alloy coating electrochemistry corrosion resistance

Received: 29 September 2010

ZTFLH:

TG174.44

Corresponding Authors: LI Xiangbo E-mail: lixb@sunrui.net

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XIAO Zhengtao, LI Xiangbo, WANG Jia, HUANG Guosheng, ZHOU Xiong. CORROSION RESISTANCE OF COLD-SPRAYED CrZrCu ALLOY COATING IN SEAWATER. J Chin Soc Corr Pro, 2012, 32(1): 18-22.

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2012/V32/I1/18

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