首页|Corrosion behavior of HVOF Inconel 625 coating in the simulated marine environment

Corrosion behavior of HVOF Inconel 625 coating in the simulated marine environment

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High velocity oxygen fuel(HVOF)spraying process is commonly used to produce superalloy coatings.Inconel 625 coating was prepared on Q235B low carbon steel by HVOF.A series of experiments were conducted to examine the surface and corrosion resistance properties of Inconel 625 HVOF coating.In this paper,potentiodynamic polarization tests and electrochemical impedance spectroscopy(EIS)tests were carried out to evaluate the corrosion resistance of Inconel 625 coating under simulated marine environment.The experiment-al results showed that Inconel 625 coating revealed low porosity and desired coating thickness.Shift in the corrosion potential(Ecorr)to-wards the noble direction combined with much low corrosion current density(icorr)indicating a significant improvement of HVOF Inconel 625 coating compared with the substrate.

high velocity oxygen fuel(HVOF)Inconel 625 coatingmarine environmentcorrosion

彭超、钟丰平、袁梦、谢世杰、王学斌

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National Quality Inspection and Testing Center of Special Metal Structural Materials,Zhejiang Academy of Special Equipment Science,Hangzhou 310020,China

Key Laboratory of Special Equipment Safety Testing Technology of Zhejiang Province,Hangzhou 310020,China

Zhejiang-Ukraine Joint Laboratory for Materials and Welding Testing Technology,Hangzhou 310020,China

浙江省自然科学基金Youth Science and Technology Project of Zhejiang Provincial Administration for Market RegulationScience and Technology Project of State Administration for Market Regulation

LTGC23E010001QN20234272022MK054

2024

10.12073/j.cw.20231018014

中国焊接(英文版)
中国焊接协会 中国机械工程学会 焊接学会 哈尔滨焊接研究所

中国焊接(英文版)

影响因子：0.139
ISSN：1004-5341
年,卷(期)：2024.33(1)
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