A STUDY ON THE MICROSTRUCTURE, WEAR, AND INDENTATION TOUGHNESS OF ANODIZED ALUMINUM OXIDE LAYER MODIFIED WITH A NEW ADDITIVE

Jalal Hasanpour, Mahboobeh Azadi and Maryam Mohri
Additional contact information
Jalal Hasanpour: Faculty of Materials and Metallurgical Engineering, Semnan University, P.O. Box 35131-19111, Semnan, Iran
Mahboobeh Azadi: Faculty of Materials and Metallurgical Engineering, Semnan University, P.O. Box 35131-19111, Semnan, Iran
Maryam Mohri: Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf 8600, Switzerland

Surface Review and Letters (SRL), 2023, vol. 30, issue 12, 1-10

Abstract: In this study, lemon juice at different concentrations as a new additive was poured into the bath of the anodizing process to enhance the mechanical properties of the manufactured aluminum oxide layers. X-ray diffraction (XRD) and field-emission scanning electron microscopy were utilized to detect formed phases and microstructure, respectively. To investigate mechanical properties, microhardness, indentation toughness, and wear tests of various aluminum oxide layers were performed. The XRD patterns showed a crystalline phase of γ-Al2O3 for all oxide layers. The microhardness of modified layers increased up to 62.2% compared to the unmodified layer. However, by increasing the additive concentration to 2.5 vol%, the hardness decreased. This was based on increasing the pore size of layers. The lowest friction coefficient with a value of 0.53, the lowest wear rate, and the highest indentation toughness was also related to the modified aluminum oxide layer when the concentration of the additive in the bath was 0.3 vol%. For this modified layer, the value of COF/H was the lowest, and the pore size of 50 nm was the lowest among the layers.

Keywords: Anodizing bath; wear; lemon juice; additive; microstructure; indentation toughness (search for similar items in EconPapers)
Date: 2023
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.worldscientific.com/doi/abs/10.1142/S0218625X23500853
Access to full text is restricted to subscribers

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:wsi:srlxxx:v:30:y:2023:i:12:n:s0218625x23500853

Ordering information: This journal article can be ordered from

DOI: 10.1142/S0218625X23500853

Access Statistics for this article

Surface Review and Letters (SRL) is currently edited by S Y Tong

More articles in Surface Review and Letters (SRL) from World Scientific Publishing Co. Pte. Ltd.
Bibliographic data for series maintained by Tai Tone Lim ().