Properties of Hard Ni-P-Al2O3 and Ni-P-SiC Coatings on Al-Based Casting Alloys

被引：22
|
作者：
Vojtech, D. [1 ]
机构：
[1] Inst Chem Technol, Dept Met & Corros Engn, CR-16628 Prague, Czech Republic
来源：
MATERIALS AND MANUFACTURING PROCESSES | 2009年 / 24卷 / 7-8期
关键词：
Abrasion resistance; Al-Si alloy; Aluminium; Aluminium oxide; Casting; Ceramics; Electroless coating; Hardness; Heat treatment; Nanocrystalline phase; Nickel; Phosphorus; Precipitation; Silicon carbide; X-ray diffraction; COMPOSITE COATINGS; NANOCRYSTALLINE MATERIALS; ELECTROLESS; MICROSTRUCTURE; RESISTANCE; DEPOSITS; FRICTION; BEHAVIOR;
D O I：
10.1080/10426910902809784
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In the present work, electroless Ni-P-Al2O3 and Ni-P-SiC composite coatings on an aluminium-silicon casting alloy are studied. A suspension containing nickel lactate, nickel hypophosphite, lactic acid, water, and dispersed ceramic particles was used for the electroless deposition. The structural study, hardness, and abrasion tests reveal that properties of the coatings strongly depend on the composition of deposition bath and on the heat treatment. The composite coatings heat treated at 400 degrees C/1h showing outstanding abrasion resistance are promising candidates for surface protection of light components.
引用
收藏
页码：754 / 757
页数：4
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