CORROSION BEHAVIOR OF AUTOCATALYTIC PLATING Ni-P COATING IN MARINE ATMOSPHERIC ENVIRONMENT

J Chin Soc Corr Pro

2010, Vol. 30

Issue (5): 369-373 DOI:

Research Articles

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CORROSION BEHAVIOR OF AUTOCATALYTIC PLATING Ni-P COATING IN MARINE ATMOSPHERIC ENVIRONMENT

LIU Lihong¹, ZHANG Zihua², YAN Jie¹, SU Shaoyan¹

1. China Electronic Product Reliability and Environmental Testing Research Institute, Guangzhou 510610
2. Military Delegate Office of AF Quartering at Wuxi, Wuxi 214063

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Abstract The autocatalytic plating nickel-phosphorus coatings with different phosphorus content on different substrates were exposed in marine atmospheric environment of South China Sea. During exposure time, the corrosion behaviors were researched and compared. The testing results showed that the corrosion resistance of coatings with high phosphorus content was better than those coatings with medium phosphorus. The corrosion resistance of coatings on Q195 steel substrate was better than those coatings on aluminum substrate. The coatings on LF6M substrate were better than those coatings on LF21M substrate and the coatings on LY12-CZ substrate were the worst; The Cl^- is the primary factor for the nickel-phosphorus cathode coating in marine atmospheric environment.

Key words: marine atmospheric environment test autocatalytic plating nickel-phosphorus coating corrosion resistance

Received: 27 April 2009

ZTFLH:

TG176

Corresponding Authors: LIU Lihong E-mail: gzhllh@163.com

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LIU Lihong, ZHANG Zihua, YAN Jie, SU Shaoyan. CORROSION BEHAVIOR OF AUTOCATALYTIC PLATING Ni-P COATING IN MARINE ATMOSPHERIC ENVIRONMENT. J Chin Soc Corr Pro, 2010, 30(5): 369-373.

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2010/V30/I5/369

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