EFFECT OF Al2O3 CERAMIC PARTICLES ON CORROSION BEHAVIOUR AND TRIBOLOGICAL PROPERTIES OF NICKEL COMPOSITE COATINGS

被引：3
作者：
Nowak, M. [1 ]
Najder, A. [1 ]
Opyrchal, M. [1 ]
Boczkal, S. [1 ]
Zelechowski, J. [1 ]
Bigaj, M. [1 ]
Gawlik, M. [1 ]
机构：
[1] Inst Nonferrous Met Gliwice, Light Met Div Skawina, 19 Pilsudskiego St, PL-32050 Skawina, Poland
来源：
ARCHIVES OF METALLURGY AND MATERIALS | 2016年 / 61卷 / 01期
关键词：
Composite coating; Al2O3; Corrosion resistance; Tribological properties;
D O I：
10.1515/amm-2016-0034
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The paper presents a study on corrosion behaviour and tribological properties of nickel composite coatings deposited by electrochemical method on aluminium alloy from 2xxx series (AlCu4MgSi). The nickel composite coatings were produced in a Watts bath of the following chemical composition: NiSO4 center dot 7H(2)O 150 g/l, NiCl2 center dot 6H(2)O 30 g/l, H3BO3 30 g/l with the addition of saccharin in an amount of 2 g/l. As hard ceramic dispersed particles embedded in the coating, alumina (Al2O3) was used in an amount of 12,5; 25; 50 and 75 g/l. Coatings were produced using cathodic current density of 6 A/dm(2), bath temperature of 60 degrees C, pH 4, and the time 60 minutes. The electroplating bath was stirred with a mechanical stirrer (350 rpm). The results obtained were compared with a nickel coating deposited without the ceramic particles. It was found that the presence of Al2O3 increases the wear resistance of composite coatings, but does not significantly improve the corrosion properties.
引用
收藏
页码：195 / 198
页数：4
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