Effects of Pulse Duration on Structure and Surface Characteristics of Micro-Arc Oxidation Coatings Formed on Aluminum Alloy

• Authors: M. Yilmaz , O. Şahin
• Languages of publication: EN

Abstracts

EN

Micro arc oxidation (MAO) of aluminum alloy samples was studied using bipolar pulses with various pulse durations under constant duty cycle. The processing times were chosen as 20, 30 and 40 minutes. The X-ray diffraction (XRD) technique, scanning electron microscope (SEM), surface roughness measurement (R_a) and indentation tests were employed to investigate the phase distribution, microstructure, surface properties and hardness of the coatings, respectively. By increasing the pulse duration and processing time, coatings with different surface roughness, thickness and hardness were fabricated.

Keywords

EN

81.05.Bx; 81.15.-z; 81.16.Pr

Discipline

• 81.16.Pr: Micro- and nano-oxidation(see also 82.37.Np Single molecule reaction kinetics)
• 81.05.Bx: Metals, semimetals, and alloys
• 81.15.-z: Methods of deposition of films and coatings; film growth and epitaxy(for structure of thin films, see 68.55.-a; see also 85.40.Sz Deposition technology in microelectronics; for epitaxial dielectric films, see 77.55.Px)

• Journal: Acta Physica Polonica A
• Year: 2016
• Volume: 129
• Issue: 4
• Pages: 673-676

Dates

published

2016-04

Contributors

author

M. Yilmaz

• Gebze Technical University, Department of Materials Science and Engineering, 41400 Gebze, Kocaeli, Turkey

author

O. Şahin

• Gebze Technical University, Department of Materials Science and Engineering, 41400 Gebze, Kocaeli, Turkey

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Identifiers

DOI

10.12693/APhysPolA.129.673