Investigation of the Scanning Microarc Oxidation Process
Joint Authors
Han, Jianmin
Yang, Zhiyong
Li, Weijing
Xia, Lingqin
Domblesky, Joseph P.
Source
Advances in Materials Science and Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-06-20
Country of Publication
Egypt
No. of Pages
12
Abstract EN
Scanning microarc oxidation (SMAO) is a coating process which is based on conventional microarc oxidation (MAO).
The key difference is that deposition in SMAO is achieved by using a stainless steel nozzle to spray an electrolyte stream on the substrate surface as opposed to immersing the workpiece in an electrolyzer.
In the present study, SMAO discharge characteristics, coating morphology, and properties are analyzed and compared to results obtained from MAO under similar conditions.
Results show that MAO and SMAO have comparable spark and microarc lifetimes and sizes, though significant differences in incubation time and discharge distribution were evident.
Results also showed that the voltage and current density for MAO and SMAO demonstrate similar behavior but have markedly different transient and steady-state values.
Results obtained from coating A356 aluminum sheet show that oxide thickness and growth rate in SMAO are strongly dependent on interelectrode spacing and travel speed.
Analysis of the SMAO coating morphology and structure showed that a denser and slightly harder layer was deposited in comparison to MAO and is attributed to reduced porosity and increased formation of α-Al2O3.
Preliminary results indicate that SMAO represents a viable process for coating of aluminum surfaces.
American Psychological Association (APA)
Xia, Lingqin& Han, Jianmin& Domblesky, Joseph P.& Yang, Zhiyong& Li, Weijing. 2017. Investigation of the Scanning Microarc Oxidation Process. Advances in Materials Science and Engineering،Vol. 2017, no. 2017, pp.1-12.
https://search.emarefa.net/detail/BIM-1123714
Modern Language Association (MLA)
Xia, Lingqin…[et al.]. Investigation of the Scanning Microarc Oxidation Process. Advances in Materials Science and Engineering No. 2017 (2017), pp.1-12.
https://search.emarefa.net/detail/BIM-1123714
American Medical Association (AMA)
Xia, Lingqin& Han, Jianmin& Domblesky, Joseph P.& Yang, Zhiyong& Li, Weijing. Investigation of the Scanning Microarc Oxidation Process. Advances in Materials Science and Engineering. 2017. Vol. 2017, no. 2017, pp.1-12.
https://search.emarefa.net/detail/BIM-1123714
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1123714