Influence of Al-Si alloy microstructure on the corrosion resistance of coatings formed by the microarc oxidation method

被引：1
|
作者：
Dudareva, Natalia Y. [1 ]
Kalschikov, Roman V. [1 ]
Zaynullina, Liliya I. [1 ]
机构：
[1] Ufa State Aviat Tech Univ, Ufa, Russia
来源：
INTERNATIONAL CONFERENCE ON MODERN TRENDS IN MANUFACTURING TECHNOLOGIES AND EQUIPMENT (ICMTMTE 2017) | 2017年 / 129卷
关键词：
CERAMIC COATINGS; ARC OXIDATION; OXIDE LAYER;
D O I：
10.1051/matecconf/201712902016
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The impact of the high-silicon aluminum alloy initial microstructure on the quality of the coating formed by microarc oxidation (MAO) has been studied. The MAO treatment is applied to AK12D samples in the initial coarse-grained state and after high pressure torsion. The following coating properties are studied: thickness, microhardness, porosity and corrosion resistance. It is established that the MAO layers properties depend on the base microstructure much. High pressure torsion applied to AK12D samples before MAO results in increase of the coating thickness by similar to 2 times. The microhardness of coatings reduces and their corrosion resistance degrades by similar to 10 times.
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页数：4
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