超音速喷涂WC-10Co4Cr及WC-12Co涂层的抗海水气蚀性能

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Abstract In order to improve the seawater resistance of marine equipment, WC-10Co4Cr coating and WC12-Co coating were prepared on the 45^# steel matrixes using supersonic flame spraying technology (HVOF). The microstructures of WC-10Co4Cr, WC12-Co powders and coatings were analyzed by scanning electron microscope (SEM), and the porosity, microhardness, and electrochemical properties of the coating were tested. The coatings and substrate were subjected to a seawater cavitation resistance comparison experiment under 3.5%NaCl solution. The mechanism of coating seawater cavitation was discussed. The results show that the porosity of WC-10Co4Cr coating prepared by HVOF is 0.42%, the microhardness of the coating is 1 317 HV_0.2. The porosity of the WC-12Co coating is 0.54%, and the microhardness of the coating is 1 253 HV_0.2. The corrosion resistance of WC-10Co4Cr coating is better than that of WC-12Co coating. The impact toughness of WC-10Co4Cr coating is slightly better than that of WC-12Co coating. For seawater cavitation resistance, WC-10Co4Cr coating is better than WC-12Co coating, and WC-12Co coating is better than 45^# steel. The micro--holes and cracks of WC-10Co4Cr coating and WC-12Co coating were expanded and fallen off under the action of cavitation impact force, internal stress, and Cl− in seawater.

Received: 08 January 2020 Published: 11 August 2020

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	FU Li
	LIU Wei
	CHEN Xiaoming
	ZHAO Jian
	LI Yuluo
	ZHANG Lei

Cite this article:

FU Li,LIU Wei,CHEN Xiaoming, et al. Seawater cavitation resistance of supersonic sprayed nano-WC-10Co4Cr and WC-12Co coatings[J]. Materials Science and Engineering of Powder Metallurgy, 2020, 25(3): 234-238.

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http://pmbjb.csu.edu.cn/EN/ OR http://pmbjb.csu.edu.cn/EN/Y2020/V25/I3/234

[1] 徐丽萍, 毛杰, 张吉阜, 等. 表面工程技术在海洋工程装备中的应用[J]. 中国材料进展, 2014, 33(1): 1-8.
XU Liping, MAO Jie, ZHANG Jifu, et al.Applications of surface engineering technology in marine engineering equipment[J]. Rare Metals Letters, 2014, 33(1): 1-8.
[2] 王嘉宁. 水推进泵抗汽蚀技术及叶型优化设计[D]. 哈尔滨: 哈尔滨工程大学, 2009.
WANG Jianing.Anti-cavitation technology of water-jet propulsion pump and optimal design of the airfoil[D]. Harbin: Harbin Engineering University, 2009.
[3] WANG Y, WU J H, MA F. Cavitation erosion of AISI1045 steel in polyacrylamide solutions[J]. Wear, 2018, 414/415(15): 227-233.
[4] 伏利, 陈小明, 马红海, 等. 爆炸喷涂制备流体机械抗冲蚀涂层的性能[J]. 粉末冶金材料科学与工程, 2019, 245(1): 124-128.
FU Li, CHEN Xiaoming, MA Honghai, et al.Microstructure and cavitation properties of WC/CO coating spared by explosive spraying[J]. Materials Science and Engineering of Powder Metallurgy, 2019, 245(1): 124-128.
[5] 朱晶, 姜元军, 何大川. 制造船用螺旋桨不锈钢材料的研究进展[J]. 中国冶金, 2019, 29(7): 1-5.
ZHUJing, JIANG Yuanjun, HE Dachuan.Research development of stainless steel material for manufacturing marine propeller[J]. China Metallurgy, 2019, 29(7): 1-5.
[6] 李科, 翟晓凡, 管方, 等. 船用螺旋桨防护技术及其材料研究进展[J]. 中国腐蚀与防护学报, 2017, 37(6): 495-503.
LI Ke, ZHAI Xiaofan, GUAN Fang, et al.Progress on materials and protection technologies for marine propeller[J]. Journal of Chinese Society for Corrosion and Protection, 2017, 37(6): 495-503.
[7] 黄晓艳, 刘波. 舰船用结构材料的现状与发展[J]. 船舶, 2004(3): 21-24.
HUANG Xiaoyan, LIU Bo.Current situation and development of warship structure material[J]. Ship and Boat, 2004(3): 21-24.
[8] LIU W, ZHENG Y G, RAD G B, et al.Effect of transformation pseudoelasticity on resistance of NiTi alloy to cavitation- abrasion in multiphase flow[J]. Acta Metallrugica Sinica, 2002, 38(2): 185-188.
[9] 金承泽, 张松, 陈松培. 船舶螺旋桨防腐防污涂装工艺的探讨[J]. 造船技术, 2013(4): 39-43.
JIN Chengze, ZHANG Song, CHEN Songpei.Discussion of anti-corrosion and anti-fouling painting process for propeller[J]. Marine Technology, 2013(4): 39-43.
[10] 鄂猛, 胡红祥, 国旭明, 等. 钴基和镍基涂层的微观组织及空蚀性能[J]. 材料热处理学报, 2018, 39(1): 90-94.
E Meng, HU Hongxiang, GUO Xuming, et al. Microstructure and cavitation erosion resistance of cobalt-based and nickel-based coatings[J]. Transactions of Materials and Heat Treatment, 2018, 39(1): 90-94.
[11] 周夏凉, 陈小明, 赵坚, 等. HVOF喷涂WC-12Co涂层性能及磨蚀机理分析[J]. 腐蚀与防护, 2014, 35(10): 994-996.
ZHOU Xialiang, CHEN Xiaoming, ZHAO Jian, et al.Analysis of properties and microstructure of WC-12Co coating prepared by HVOF[J]. Corrosion and Protection, 2014, 35(10): 994-996.
[12] 陈小明, 周夏凉, 吴燕明, 等. HVOF喷涂WC-10Co4Cr涂层的性能及滑动磨损机理[J]. 表面技术, 2017, 46(3): 119-123.
CHEN Xiaoming, ZHOU Xialiang, WU Yanming, et al.Properties and sliding wear mechanism of WC-10Co4Cr coating prepared by HVOF[J]. Surface Technology, 2017, 46(3): 119-123.
[13] GEORGES L C, ASWIN G, AMIR M, et al.Interaction of a cavitation bubble with a polymeric coating-scaling fluid and material dynamics[J]. International Journal of Multiphase Flow, 2019, 112(3): 155-169.
[14] RAKESH B N, ARORA H S, GREWAL H S.Microwave synthesized complex concentrated alloy coatings: Plausible solution to cavitation induced erosion-corrosions[J]. Ultrasonics Sonochemistry, 2019, 50(1): 114-125.
[15] 方勇, 伏利, 陈小明, 等. 40Cr钢表面高焓等离子喷涂Cr₂O₃涂层的性能[J]. 粉末冶金材料科学与工程, 2018, 23(2): 217-221.
FANG Yong, FU Li, CHEN Xiaoming, et al.The properties of Cr₂O₃ coating sprayed by high enthalpy plasma on the 40Cr steel[J]. Materials Science and Engineering of Powder Metallurgy, 2018, 23(2): 217-221.