THE INFLUENCE OF GLUCONATE BATH PARAMETERS ON THE RATE OF ELECTRODEPOSITION AND MECHANICAL PROPERTIES OF Co-W COATINGS

被引：0
|
作者：
Belevskii, S. S. [1 ]
Bobanova, J., I [1 ,2 ]
Buravets, V. A. [1 ]
Gotelyak, A., V [2 ]
Danilchuk, V. V. [2 ]
Silkin, S. A. [2 ,3 ]
Tsyntsaru, N., I [1 ,4 ]
Dikusar, A., I [1 ,2 ]
机构：
[1] Inst Appl Phys ASM, Kishinev, Moldova
[2] TG Shevchenko Pridnestrovie State Univ, Tiraspol, Moldova
[3] Kostroma State Univ, Kostroma, Russia
[4] Vilnius Univ, Vilnius, Lithuania
来源：
PROCEEDINGS OF IX INTERNATIONAL SCIENTIFIC CONFERENCE (BALTTRIB 2017) | 2018年
关键词：
Microhardness; electrodeposition; Co-W coatings; rate of electrodeposition; ALLOY COATINGS; TUNGSTEN; MICROHARDNESS; DEPOSITION; CITRATE; PH; ELECTROLYTE;
D O I：
10.15544/balttrib.2017.03
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The given study overview the results obtained for Co-W alloys electrodeposited from gluconate bath. Namely, the influence of different parameters (the concentration of the bath components, pH, temperature, cathodic current density, volume current density, hydrodynamic conditions, insoluble and soluble anodes) on the rate of electrodeposition and microhardness of the coatings has been investigated. The given research determine the conditions ensuring high deposition rate, microhardness and bath efficiency. It was shown, that the deposition rate, tungsten content and microhardness reach the maximum values at pH 6.5, regardless on the concentration of bath components. Also, it was detected the macroscopic size effect of microhardness, which is linked to the fact that for a fixed cathodic current density microhardness depends on volume current density. In addition, different anodes (Pt, graphite, W and Co-W) were investigated to reveal the anode influence on reaching the maximum values of the current efficiency and microhardness.
引用
收藏
页码：7 / 12
页数：6
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