ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559
Surface Treatment and Corrosion
Erosion-Corrosion Behavior of Electroless Ni–P Coating on M2052 Alloy in Artificial Seawater
Bingchao QinLongyi LiJun Wang Guang ChenZhaohua HuangYuyang LiuJingjie Dou
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2022 Volume 62 Issue 3 Pages 550-560

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Abstract

M2052 damping alloy has good shock absorption and noise reduction ability, but the corrosion resistance and wear resistance are insufficient. In this study, a high phosphorus amorphous Ni–P coating with a thickness of about 22.1 µm was successfully deposited on the M2052 substrate by electroless plating. The wear experiments show that the main wear mechanism of Ni–P coating is adhesive wear, while the main wear mechanism of M2052 substrate is abrasive wear and corrosion wear. Compared with M2052 substrate, the electroless plating sample has a lower corrosion current and higher corrosion potential, and the corrosion resistance is greatly improved. In the erosion-corrosion environment, the corrosion rate of the uncoated sample is about 5 times that of the coated sample. However, the damage of Ni–P coating under the same environment corroded slightly, which effectively impedes the erosion of sediment flow and the corrosion of artificial seawater.

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© 2022 The Iron and Steel Institute of Japan.

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https://creativecommons.org/licenses/by-nc-nd/4.0/
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