Ni-SiC composite plated under a modulated current

被引：54

作者：

Orlovskaja, L ^{[1
]}

Periene, N ^{[1
]}

Kurtinaitiene, M ^{[1
]}

Surviliene, S ^{[1
]}

机构：

[1] Inst Chem, Vilnius, Lithuania

来源：

SURFACE & COATINGS TECHNOLOGY | 1999年 / 111卷 / 2-3期

关键词：

coating properties; modulated current regimes; nickel-SiC electrocomposites;

D O I：

10.1016/S0257-8972(98)00817-2

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Ni-SiC composite coatings were plated under a modulated current in order to control coating properties including ceramic content, hardness, ductility, internal stresses and hot-oxidation resistance. Composites with SIC gradient distribution were deposited from a Watts-type bath by reducing the current density from 8 to 3 A dm(-2). When a pulse regime with a frequency of 0.05 Hz was used, the composite possessed a combination of enhanced hardness and higher ductility together with lower internal stresses. The best resistance to hot-corrosion at 800 and 1000 degrees C was obtained for the composite deposited in pulse-reverse regime and containing 17 vol% of SIG. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：234 / 239

页数：6

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