Electrochemical tailoring of ternary Ni-W-Co(Al2O3) nanocomposite using pulse reverse technique

被引：48
作者：
Allahyarzadeh, M. H. [1 ]
Aliofkhazraei, M. [1 ]
Rouhaghdam, A. R. Sabour [1 ]
Torabinejad, V. [1 ]
机构：
[1] Tarbiat Modares Univ, Fac Engn, Dept Mat Engn, POB 14115-143, Tehran, Iran
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 705卷
关键词：
Electrochemical tailoring; Electrochemical procedure; Gradient structure; Ni-W-Co-Alumina; Corrosion; Wear; NANOCRYSTALLINE NI-W; CORROSION-RESISTANCE; ANOMALOUS CODEPOSITION; MECHANICAL-PROPERTIES; COMPOSITION GRADIENT; ELECTRODEPOSITION; COATINGS; WEAR; BEHAVIOR; TUNGSTEN;
D O I：
10.1016/j.jallcom.2017.02.155
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 study, an attempt has been made to tailor the nickel-tungsten-cobalt-alumina nanocomposite coatings by providing an electrochemical procedure in which both the mechanical and the electrochemical aspects of coatings are controllable. Using this method, besides changing the chemical composition of the coating as a function of thickness, it is possible to change the coating crystallite size as a function of thickness by changing parameters such as frequency. The backscatter electron image and EDS linear analysis, coupled with the measurements obtained by the XRD technique, indicate that the chemical composition and crystallite size change in line with the thickness of the coating. Corrosion and wear properties of the electrochemically tailored coatings could also be heavily affected by the provided electrochemical procedure parameters. (C) 2017 Elsevier B. V. All rights reserved.
引用
收藏
页码：788 / 800
页数：13
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