Study of mechanical character and corrosion properties of La2O3 nanoparticle reinforced Ni-W composite coatings

被引：33
作者：
Cheng, Xinyu [1 ,2 ,3 ]
He, Yi [1 ,2 ,3 ]
Song, Ruxia [1 ,2 ,3 ]
Li, Hongjie [1 ,2 ,3 ]
Liu, Bo [1 ,2 ,3 ]
Zhou, Huilian [1 ,2 ,3 ]
Yan, Liping [1 ,2 ,3 ]
机构：
[1] Southwest Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploitat, Chengdu 610500, Peoples R China
[2] Southwest Petr Univ, Coll Chem & Chem Engn, Chengdu 610500, Peoples R China
[3] Oil & Gas Field Appl Chem Key Lab Sichuan Prov, Chengdu 610500, Peoples R China
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2022年 / 652卷
基金：
中国国家自然科学基金;
关键词：
Nickel-tungsten composite coating; Nano-lanthanum oxide; Ni-W/La2O3 composite coating; Corrosion resistance; Electrodeposition; RARE-EARTH; STRENGTHENING MECHANISMS; TRIBOLOGICAL BEHAVIOR; ALLOY COATINGS; RESISTANCE; ELECTRODEPOSITION; MICROSTRUCTURE; NANOCRYSTALLINE; WEAR; DEPOSITION;
D O I：
10.1016/j.colsurfa.2022.129799
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this paper, Ni-W/La2O3 composite coatings were successfully prepared by pulse electrodeposition technology. The effect of the nano-La2O3 content in the plating solution on the structure and properties of the plated layers were evaluated. We find that nano-La2O3 can improve the situation of structural defects such as microcracks in the coating and serve to increase the thickness of the coating. Meanwhile, the Ni-W/La2O3 (4 g.L-1) composite coating has the smallest crystallite size (6.52 nm). Compared with the Ni-W composite coating, the micro -hardness of Ni-W/La2O3 (4 g.L-1) composite coating increased by 38.61 % (the microhardness value is 682.30 Hv), while the friction coefficient decreased by 46.57 % (the average coefficient of friction is 0.246) and the corrosion rate decreased by 81.54 % (the corrosion rate is 0.0498 mm.a(-1)).
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页数：14
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